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Annesi JJ, Powell SM. Temporal Aspects of Psychosocial Mediators of the Exercise-Weight Loss Maintenance Relationship Within Scalable Behavior-Change Treatments. Can J Nurs Res 2024:8445621241253876. [PMID: 38738268 DOI: 10.1177/08445621241253876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024] Open
Abstract
STUDY BACKGROUND Limited knowledge of psychological correlates of weight loss is associated with continuing failures of behavioral obesity treatments beyond the short term. PURPOSE This study aimed to inform health professionals' obesity interventions via an increased knowledge of mediators of the exercise-weight loss maintenance relationship. METHODS Women participated in 6-month obesity treatments within community settings emphasizing moderate exercise and self-regulation skills development via primarily in-person (n = 54) or primarily written (n = 54) means. Changes in mood, self-regulating eating, and weight over 6, 12, and 24 months were assessed. A moderated mediation model was tested using the PROCESS macro instruction. RESULTS Improvements in mood, self-regulating eating, and weight were significantly greater in the in-person group. The relationship between a dichotomous measure of completing at least 3 sessions of exercise per week (or not) and change in weight over 6 months was no longer significant when the mediators of changes in negative mood and self-regulation of eating were sequentially entered. Paths of exercise→negative mood reduction→eating self-regulation increase→weight loss over 6, 12 and 24 months were significant. Exercise self-regulation at Month 3 significantly moderated the mood change→eating self-regulation change relationship. CONCLUSIONS Based on the identified paths, scalable obesity-treatment content and emphases were informed. This could help guide health professionals' actions concerning the management of obesity.
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Affiliation(s)
- James J Annesi
- California State University, Monterey Bay, Seaside, CA, USA
- Mind Body Wellbeing, LLC, Manahawkin, NJ, USA
| | - Sara M Powell
- California State University, Monterey Bay, Seaside, CA, USA
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Robinson L, Flynn M, Cooper M. Individual differences in motivation to change in individuals with eating disorders: A systematic review. Int J Eat Disord 2024; 57:1069-1087. [PMID: 38436481 DOI: 10.1002/eat.24178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/14/2024] [Accepted: 02/14/2024] [Indexed: 03/05/2024]
Abstract
OBJECTIVE Motivation to change has been suggested to significantly impact treatment outcomes in eating disorders (EDs). This review will investigate factors associated with motivation to change in EDs with the aim of supporting clinicians to be aware and sensitive to factors that might obstruct recovery and to inform motivation-based interventions. METHOD Using PRISMA guidelines, this article identified 24 studies through database searches meeting eligibility criteria. Only correlates of motivation were identified, limiting the ability of this review to identify causal relationships. Factors that changed alongside changes in motivation were identified from longitudinal studies. RESULTS This review identified factors such as individual characteristics, co-morbid psychopathology, lack of treatment autonomy and relationships with others to be associated with motivation to change in individuals with EDs. In addition, motivation to change significantly increased alongside self-esteem and identity re-negotiation when measured longitudinally. DISCUSSION Motivational interviewing can typically focus on exploring ambivalence to treatment, identifying goals and values, and increasing self-efficacy. However, this review identifies individual and relational factors to be particularly significant and may obstruct recovery from an ED. As such, evidence-based targets have been identified to inform clinicians and motivation-based interventions. PUBLIC SIGNIFICANCE Knowledge of factors associated with motivation to change in EDs is important to understand those who may have poorer treatment outcomes. Motivation may be improved by supporting individuals' relationship with others and tailoring interventions according to temperament and personality traits. Utilizing an individual's social support as they enter ED treatment may be effective in maximizing motivation to recover.
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Affiliation(s)
- Lauren Robinson
- Oxford Institute of Clinical Psychology Training and Research, Oxford University, Oxford, UK
| | - Michaela Flynn
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Myra Cooper
- Oxford Institute of Clinical Psychology Training and Research, Oxford University, Oxford, UK
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Simpson AHRW, Clement ND, Simpson SA, Pandit H, Smillie S, Leeds AR, Conaghan PG, Kingsbury SR, Hamilton D, Craig P, Ray D, Keerie C, Kinsella E, Bell-Higgs A, McGarty A, Beadle C, Howie CR, Norrie J. A preoperative package of care for osteoarthritis, consisting of weight loss, orthotics, rehabilitation, and topical and oral analgesia (OPPORTUNITY): a two-centre, open-label, randomised controlled feasibility trial. Lancet Rheumatol 2024; 6:e237-e246. [PMID: 38423028 DOI: 10.1016/s2665-9913(23)00337-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 12/03/2023] [Accepted: 12/13/2023] [Indexed: 03/02/2024]
Abstract
BACKGROUND Osteoarthritis of the knee is a major cause of disability worldwide. Non-operative treatments can reduce the morbidity but adherence is poor. We hypothesised that adherence could be optimised if behavioural change was established in the preoperative period. Therefore, we aimed to assess feasibility, acceptability, and recruitment and retention rates of a preoperative package of non-operative care in patients awaiting knee replacement surgery. METHODS We did an open-label, randomised controlled, feasibility trial in two secondary care centres in the UK. Eligible participants were aged 15-85 years, on the waiting list for a knee arthroplasty for osteoarthritis, and met at least one of the thresholds for one of the four components of the preoperative package of non-operative care intervention (ie, weight loss, exercise therapy, use of insoles, and analgesia adjustment). Participants were randomly assigned (2:1) to either the intervention group or the standard of care (ie, control) group. All four aspects of the intervention were delivered weekly over 12 weeks. Participants in the intervention group were reviewed regularly to assess adherence. The primary outcome was acceptability and feasibility of delivering the intervention, as measured by recruitment rate, retention rate at follow-up review after planned surgery, health-related quality of life, joint-specific scores, and adherence (weight change and qualitative interviews). This study is registered with ISRCTN, ISRCTN96684272. FINDINGS Between Sept 3 2018, and Aug 30, 2019, we screened 233 patients, of whom 163 (73%) were excluded and 60 (27%) were randomly assigned to either the intervention group (n=40) or the control group (n=20). 34 (57%) of 60 participants were women, 26 (43%) were men, and the mean age was 66·8 years (SD 8·6). Uptake of the specific intervention components varied: 31 (78%) of 40 had exercise therapy, 28 (70%) weight loss, 22 (55%) analgesia adjustment, and insoles (18 [45%]). Overall median adherence was 94% (IQR 79·5-100). At the final review, the intervention group lost a mean of 11·2 kg (SD 5·6) compared with 1·3 kg (3·8) in the control group (estimated difference -9·8 kg [95% CI -13·4 to -6·3]). A clinically significant improvement in health-related quality o life (mean change 0·078 [SD 0·195]) were reported, and joint-specific scores showed greater improvement in the intervention group than in the control group. No adverse events attributable to the intervention occurred. INTERPRETATION Participants adhered well to the non-operative interventions and their health-related quality of life improved. Participant and health professional feedback were extremely positive. These findings support progression to a full-scale effectiveness trial. FUNDING Versus Arthritis.
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Affiliation(s)
- A Hamish R W Simpson
- Edinburgh Orthopaedics, Edinburgh Medical School, The University of Edinburgh, Edinburgh, UK.
| | - Nicholas D Clement
- Edinburgh Orthopaedics, Edinburgh Medical School, The University of Edinburgh, Edinburgh, UK
| | - Sharon A Simpson
- MRC/SCO Social and Public Health Sciences Unit and School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Hemandt Pandit
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, NIHR Biomedical Research Centre-Leeds, University of Leeds, Leeds, UK
| | - Susie Smillie
- School of Social and Political Sciences, University of Glasgow, Glasgow, UK
| | - Anthony R Leeds
- Parker Institute, Frederiksberg Hospital, Copenhagen, Denmark
| | - Philip G Conaghan
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, NIHR Biomedical Research Centre-Leeds, University of Leeds, Leeds, UK
| | - Sarah R Kingsbury
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, NIHR Biomedical Research Centre-Leeds, University of Leeds, Leeds, UK
| | - David Hamilton
- Research Centre for Health, Glasgow Caledonian University, Glasgow, UK
| | - Peter Craig
- MRC/SCO Social and Public Health Sciences Unit and School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - David Ray
- Anaesthesia and Critical Care, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Catriona Keerie
- Edinburgh Clinical Trials Unit, Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - Elaine Kinsella
- Edinburgh Clinical Trials Unit, Usher Institute, The University of Edinburgh, Edinburgh, UK
| | | | - Arlene McGarty
- MRC/SCO Social and Public Health Sciences Unit and School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Christine Beadle
- Edinburgh Orthopaedics, Edinburgh Medical School, The University of Edinburgh, Edinburgh, UK
| | - Colin R Howie
- Edinburgh Orthopaedics, Edinburgh Medical School, The University of Edinburgh, Edinburgh, UK
| | - John Norrie
- Edinburgh Clinical Trials Unit, Usher Institute, The University of Edinburgh, Edinburgh, UK
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Galekop MMJ, Uyl-de Groot C, Redekop WK. Economic Evaluation of a Personalized Nutrition Plan Based on Omic Sciences Versus a General Nutrition Plan in Adults with Overweight and Obesity: A Modeling Study Based on Trial Data in Denmark. Pharmacoecon Open 2024; 8:313-331. [PMID: 38113009 PMCID: PMC10883904 DOI: 10.1007/s41669-023-00461-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/26/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Since there is no diet that is perfect for everyone, personalized nutrition approaches are gaining popularity to achieve goals such as the prevention of obesity-related diseases. However, appropriate choices about funding and encouraging personalized nutrition approaches should be based on sufficient evidence of their effectiveness and cost-effectiveness. In this study, we assessed whether a newly developed personalized plan (PP) could be cost-effective relative to a non-personalized plan in Denmark. METHODS Results of a 10-week randomized controlled trial were combined with a validated obesity economic model to estimate lifetime cost-effectiveness. In the trial, the intervention group (PP) received personalized home-delivered meals based on metabolic biomarkers and personalized behavioral change messages. In the control group these meals and messages were not personalized. Effects were measured in body mass index (BMI) and quality of life (EQ-5D-5L). Costs [euros (€), 2020] were considered from a societal perspective. Lifetime cost-effectiveness was assessed using a multi-state Markov model. Univariate, probabilistic sensitivity, and scenario analyses were performed. RESULTS In the trial, no significant differences were found in the effectiveness of PP compared with control, but wide confidence intervals (CIs) were seen [e.g., BMI (-0.07, 95% CI -0.51, 0.38)]. Lifetime estimates showed that PP increased costs (€520,102 versus €518,366, difference: €1736) and quality-adjusted life years (QALYs) (15.117 versus 15.106, difference: 0.011); the incremental cost-utility ratio (ICUR) was therefore high (€158,798 to gain one QALY). However, a 20% decrease in intervention costs would reduce the ICUR (€23,668 per QALY gained) below an unofficial gross domestic product (GDP)-based willingness-to-pay threshold (€47,817 per QALY gained). CONCLUSION On the basis of the willingness-to-pay threshold and the non-significant differences in short-term effectiveness, PP may not be cost-effective. However, scaling up the intervention would reduce the intervention costs. Future studies should be larger and/or longer to reduce uncertainty about short-term effectiveness. TRIAL REGISTRATION NUMBER ClinicalTrials.gov registry (NCT04590989).
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Affiliation(s)
| | - Carin Uyl-de Groot
- Erasmus Universiteit Rotterdam, Erasmus School of Health Policy and Management, Rotterdam, The Netherlands
| | - William Ken Redekop
- Erasmus Universiteit Rotterdam, Erasmus School of Health Policy and Management, Rotterdam, The Netherlands
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May CN, Cox‐Martin M, Ho AS, McCallum M, Chan C, Blessing K, Behr H, Blanco P, Mitchell ES, Michaelides A. Weight loss maintenance after a digital commercial behavior change program (Noom Weight): Observational cross-sectional survey study. Obes Sci Pract 2023; 9:443-451. [PMID: 37810531 PMCID: PMC10551118 DOI: 10.1002/osp4.666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 02/10/2023] [Accepted: 02/26/2023] [Indexed: 03/11/2023] Open
Abstract
Background Behavioral weight loss programs often lead to significant short-term weight loss, but long-term weight maintenance remains a challenge. Most weight maintenance data come from clinical trials, in-person programs, or general population surveys, but there is a need for better understanding of long-term weight maintenance in real-world digital programs. Methods This observational survey study examined weight maintenance reported by individuals who had used Noom Weight, a digital commercial behavior change program, and identified factors associated with greater weight maintenance. The cross-sectional survey was completed by 840 individuals who had lost at least 10% of their body weight using Noom Weight 6-24 months prior. Results The study found that 75% of individuals maintained at least 5% weight loss after 1 year, and 49% maintained 10% weight loss. On average, 65% of initial weight loss was maintained after 1 year and 57% after 2 years. Habitual behaviors, such as healthy snacking and exercise, were associated with greater weight maintenance, while demographic factors were not. Conclusion This study provides real-world data on the long-term weight maintenance achieved using a fully digital behavioral program. The results suggest that Noom Weight is associated with successful weight maintenance in a substantial proportion of users. Future research will use a randomized controlled trial to track weight maintenance after random assignment and at a 2 year follow-up.
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Affiliation(s)
| | | | | | | | | | | | - Heather Behr
- Academic ResearchNoom Inc.New YorkNew YorkUSA
- Department of Integrative HealthSaybrook UniversityPasadenaCaliforniaUSA
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Aldhamin RA, Al-Ghareeb G, Al Saif A, Al-Ahmed Z. Health Coaching for Weight Loss Among Overweight and Obese Individuals in Saudi Arabia: A Retrospective Analysis. Cureus 2023; 15:e41658. [PMID: 37565116 PMCID: PMC10411960 DOI: 10.7759/cureus.41658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2023] [Indexed: 08/12/2023] Open
Abstract
Background Health coaching is an increasingly used strategy to help in adopting lifestyle changes for weight loss. While Saudi Arabia has one of the highest obesity prevalences worldwide, research on lifestyle interventions for weight loss is limited. Aim We aimed to investigate the effectiveness of health coaching for weight loss among the Saudi population in real-world primary healthcare settings. Methods This is a retrospective observational study. Secondary data from the health coach national program in the Eastern Health Cluster were retrieved. Obese and overweight individuals aged 15 years or older with weight-related goals who completed at least 12 weeks of coaching were included in the analysis. The primary outcomes are weight change (kg) and weight change percent (%) of the initial weight. We further compared the weight change% between different follow-up methods (i.e., physical, virtual, and hybrid) and studied the factors associated with -5% weight loss. Results In total, 465 participants were included in the analysis, with a female predominance (66.2%) and a median initial weight of 90 kg (interquartile range (IQR): 77, 101). The median follow-up duration was 127 days (IQR: 101, 157), and the median total number of coaching sessions was three (IQR: 2, 5). The mean weight change was -2.68 kg (95% confidence interval (CI): -3.12, -2.24), p<0.001. Comparing each follow-up group, no statistically significant difference was found when controlling for number of visits (p=0.059). The adjusted means for weight change% were -3.77%, -2.59%, and -2.54% for hybrid, physical, and virtual visits, respectively. Factors that were associated with achieving at least -5% weight loss were male sex (adjusted odds ratio (aOR)=1.87, 95% CI: 1.16, 3.02), five or more total coaching visits (aOR=5.23, 95% CI: 2.88, 9.50), longer follow-up duration (aOR=1.09, 95% CI: 1.03, 1.15), and having a weight management goal (aOR=4.5, 95% CI: 1.63, 12.45) as the reason for initial coaching visit. Conclusion We found statistically significant weight change among clients who completed 12 weeks of coaching in primary care settings. The findings in this paper contribute to the importance of lifestyle interventions for weight loss among the Saudi population. However, stronger controlled studies are needed to confirm this finding.
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Affiliation(s)
| | | | - Ahmed Al Saif
- Keep Well Unit, Model of Care Department, Eastern Health Cluster, Dammam, SAU
| | - Zahra Al-Ahmed
- Keep Well Unit, Model of Care Department, Eastern Health Cluster, Dammam, SAU
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Michaelides A, Mitchell ES, Behr H, Ho AS, Hanada G, Lee J, Mcpartland S. Executive Function-Related Improvements on a Commercial CBT-Based Weight Management Intervention: Pilot Randomized Controlled Trial. IJERPH 2022; 19:8763. [PMID: 35886615 PMCID: PMC9320503 DOI: 10.3390/ijerph19148763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/06/2022] [Accepted: 07/14/2022] [Indexed: 11/17/2022]
Abstract
Executive functioning is a key component involved in many of the processes necessary for effective weight management behavior change (e.g., setting goals). Cognitive behavioral therapy (CBT) and third-wave CBT (e.g., mindfulness) are considered first-line treatments for obesity, but it is unknown to what extent they can improve or sustain executive functioning in a generalized weight management intervention. This pilot randomized controlled trial examined if a CBT-based generalized weight management intervention would affect executive functioning and executive function-related brain activity in individuals with obesity or overweight. Participants were randomized to an intervention condition (N = 24) that received the Noom Weight program or to a control group (N = 26) receiving weekly educational newsletters. EEG measurements were taken during Flanker, Stroop, and N-back tasks at baseline and months 1 through 4. After 4 months, the intervention condition evidenced greater accuracy over time on the Flanker and Stroop tasks and, to a lesser extent, neural markers of executive function compared to the control group. The intervention condition also lost more weight than controls (−7.1 pounds vs. +1.0 pounds). Given mixed evidence on whether weight management interventions, particularly CBT-based weight management interventions, are associated with changes in markers of executive function, this pilot study contributes preliminary evidence that a multicomponent CBT-based weight management intervention (i.e., that which provides both support for weight management and is based on CBT) can help individuals sustain executive function over 4 months compared to controls.
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Ho AS, Behr H, Mitchell ES, Yang Q, Lee J, May CN, Michaelides A. Goal language is associated with attrition and weight loss on a digital program: Observational study. PLOS Digit Health 2022; 1:e0000050. [PMID: 36812521 PMCID: PMC9931249 DOI: 10.1371/journal.pdig.0000050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 04/24/2022] [Indexed: 06/18/2023]
Abstract
Behavioral weight loss reduces risk of weight-related health complications. Outcomes of behavioral weight loss programs include attrition and weight loss. There is reason to believe that individuals' written language on a weight management program may be associated with outcomes. Exploring associations between written language and these outcomes could potentially inform future efforts towards real-time automated identification of moments or individuals at high risk of suboptimal outcomes. Thus, in the first study of its kind, we explored whether individuals' written language in actual use of a program (i.e., outside of a controlled trial) is associated with attrition and weight loss. We examined two types of language: goal setting (i.e., language used in setting a goal at the start of the program) and goal striving (i.e., language used in conversations with a coach about the process of striving for goals) and whether they are associated with attrition and weight loss on a mobile weight management program. We used the most established automated text analysis program, Linguistic Inquiry Word Count (LIWC), to retrospectively analyze transcripts extracted from the program database. The strongest effects emerged for goal striving language. In striving for goals, psychologically distanced language was associated with more weight loss and less attrition, while psychologically immediate language was associated with less weight loss and higher attrition. Our results highlight the potential importance of distanced and immediate language in understanding outcomes like attrition and weight loss. These results, generated from real-world language, attrition, and weight loss (i.e., from individuals' natural usage of the program), have important implications for how future work can better understand outcomes, especially in real-world settings.
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Affiliation(s)
- Annabell Suh Ho
- Academic Research, Noom, Inc., New York, New York, United States of America
| | - Heather Behr
- Academic Research, Noom, Inc., New York, New York, United States of America
- Department of Integrative Health, Saybrook University, Pasadena, California, United States of America
| | | | - Qiuchen Yang
- Academic Research, Noom, Inc., New York, New York, United States of America
| | - Jihye Lee
- Department of Communication, Stanford University, Stanford, California, United States of America
| | - Christine N. May
- Academic Research, Noom, Inc., New York, New York, United States of America
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Jian C, Silvestre MP, Middleton D, Korpela K, Jalo E, Broderick D, de Vos WM, Fogelholm M, Taylor MW, Raben A, Poppitt S, Salonen A. Gut microbiota predicts body fat change following a low-energy diet: a PREVIEW intervention study. Genome Med 2022; 14:54. [PMID: 35599315 PMCID: PMC9125896 DOI: 10.1186/s13073-022-01053-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/04/2022] [Indexed: 12/17/2022] Open
Abstract
Background Low-energy diets (LEDs) comprise commercially formulated food products that provide between 800 and 1200 kcal/day (3.3–5 MJ/day) to aid body weight loss. Recent small-scale studies suggest that LEDs are associated with marked changes in the gut microbiota that may modify the effect of the LED on host metabolism and weight loss. We investigated how the gut microbiota changed during 8 weeks of total meal replacement LED and determined their associations with host response in a sub-analysis of 211 overweight adults with pre-diabetes participating in the large multicentre PREVIEW (PREVention of diabetes through lifestyle intervention and population studies In Europe and around the World) clinical trial. Methods Microbial community composition was analysed by Illumina sequencing of the hypervariable V3-V4 regions of the 16S ribosomal RNA (rRNA) gene. Butyrate production capacity was estimated by qPCR targeting the butyryl-CoA:acetate CoA-transferase gene. Bioinformatics and statistical analyses, such as comparison of alpha and beta diversity measures, correlative and differential abundances analysis, were undertaken on the 16S rRNA gene sequences of 211 paired (pre- and post-LED) samples as well as their integration with the clinical, biomedical and dietary datasets for predictive modelling. Results The overall composition of the gut microbiota changed markedly and consistently from pre- to post-LED (P = 0.001), along with increased richness and diversity (both P < 0.001). Following the intervention, the relative abundance of several genera previously associated with metabolic improvements (e.g., Akkermansia and Christensenellaceae R-7 group) was significantly increased (P < 0.001), while flagellated Pseudobutyrivibrio, acetogenic Blautia and Bifidobacterium spp. were decreased (all P < 0.001). Butyrate production capacity was reduced (P < 0.001). The changes in microbiota composition and predicted functions were significantly associated with body weight loss (P < 0.05). Baseline gut microbiota features were able to explain ~25% of variation in total body fat change (post–pre-LED). Conclusions The gut microbiota and individual taxa were significantly influenced by the LED intervention and correlated with changes in total body fat and body weight in individuals with overweight and pre-diabetes. Despite inter-individual variation, the baseline gut microbiota was a strong predictor of total body fat change during the energy restriction period. Trial registration The PREVIEW trial was prospectively registered at ClinicalTrials.gov (NCT01777893) on January 29, 2013. Supplementary Information The online version contains supplementary material available at 10.1186/s13073-022-01053-7.
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McCallum M, Ho AS, May CN, Behr H, Mitchell ES, Michealides A. Body Positivity and Self-Compassion on a Publicly Available Behavior Change Weight Management Program. Int J Environ Res Public Health 2021; 18:ijerph182413358. [PMID: 34948964 PMCID: PMC8708647 DOI: 10.3390/ijerph182413358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022]
Abstract
According to recent research, body positivity and self-compassion are key outcomes that are tied to better psychological and physical health. To date, it is unclear whether body positivity and self-compassion improve, stay constant, or deteriorate over the course of a weight management program, particularly one that addresses the psychological roots of behavior change. Additionally, beyond controlled settings, there are no studies on body positivity and self-compassion in individuals who choose to join a commercial weight management program. Therefore, this single-arm prospective study examined changes in body positivity and self-compassion from baseline to the 16 week milestone of Noom Weight, a commercial behavior change weight management program informed by acceptance and commitment therapy (ACT), dialectical behavior therapy (DBT), and cognitive behavioral therapy (CBT). We also examined how baseline and over-time changes in body positivity and self-compassion predicted engagement in program-measured relevant behaviors (e.g., exercises logged). Participants were a random subset of individuals who had recently self-enrolled in the program (n = 133). Body positivity and self-compassion were measured via survey at baseline and end of the core program (16 weeks). Self-reported weight and program-recorded engagement were extracted from the program database. Compared to baseline, body appreciation, body image flexibility, self-compassion, and body-focused rumination significantly improved at 16 weeks (all ps < 0.007). Participants lost a statistically significant amount of weight (3.9 kg; t(128)) = 10.64, p < 0.001) by 16 weeks, which was 4.4% body weight. Greater engagement, especially messaging a coach, reading articles, and logging meals, was associated with improvements over time in body appreciation (r = 0.17, p = 0.04), body image flexibility (r = −0.23, p = 0.007), and the brooding component of rumination (r = −0.23, p = 0.007). Greater engagement was also associated with baseline total self-compassion (r = 0.19, p = 0.03) and self-judgment (r = 0.24, p = 0.006). The results suggest that individuals experience improvements in body positivity and self-compassion while learning about ACT, DBT, and CBT through curriculum and coaching in this setting. The results also have important clinical implications, such as the possibility that psychologically-oriented (i.e., ACT, DBT, and CBT-based) weight management could be important to improve body positivity or that baseline self-compassion could be used to target individuals at risk for lower engagement. Future work should investigate these possibilities as well as delineate the causal relationships between body positivity, self-compassion, engagement, and weight loss.
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Affiliation(s)
- Meaghan McCallum
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (M.M.); (A.S.H.); (C.N.M.); (H.B.); (A.M.)
| | - Annabell Suh Ho
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (M.M.); (A.S.H.); (C.N.M.); (H.B.); (A.M.)
| | - Christine N. May
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (M.M.); (A.S.H.); (C.N.M.); (H.B.); (A.M.)
| | - Heather Behr
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (M.M.); (A.S.H.); (C.N.M.); (H.B.); (A.M.)
- Department of Integrative Health, Saybrook University, 55 W Eureka St., Pasadena, CA 91103, USA
| | - Ellen Siobhan Mitchell
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (M.M.); (A.S.H.); (C.N.M.); (H.B.); (A.M.)
- Correspondence:
| | - Andreas Michealides
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (M.M.); (A.S.H.); (C.N.M.); (H.B.); (A.M.)
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Navas JF, Verdejo-García A, Vadillo MA. The evidential value of research on cognitive training to change food-related biases and unhealthy eating behavior: A systematic review and p-curve analysis. Obes Rev 2021; 22:e13338. [PMID: 34617392 DOI: 10.1111/obr.13338] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/13/2021] [Accepted: 08/12/2021] [Indexed: 11/29/2022]
Abstract
Cognitive bias modification (CBM), which retrains implicit biases towards unhealthy foods, has been proposed as a promising adjunct to improve the efficacy of weight loss interventions. We conducted a systematic review of research on three CBM approaches (i.e., cue-specific inhibitory control, approach bias modification, and attentional bias modification) for reducing unhealthy eating biases and behavior. We performed a p-curve analysis to determine the evidential value of this research; this method is optimally suited to clarify whether published results reflect true effects or false positives due to publication and reporting biases. When considering all CBM approaches, our results suggested that the findings of CBM trials targeting unhealthy eating are unlikely to be false positives. However, only research on attentional bias modification reached acceptable levels of power. These results suggest that CBM interventions may be an effective strategy to enhance the efficacy of weight loss interventions. However, there is room for improvement in the methodological standards of this area of research, especially increasing the statistical power can help to fully clarify the clinical potential of CBM, and determine the role of potential moderators.
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Affiliation(s)
- Juan F Navas
- Department of Clinical Psychology, Complutense University of Madrid, Madrid, Spain
| | - Antonio Verdejo-García
- Monash Institute of Cognitive and Clinical Neurosciences, Monash University, Clayton, Victoria, Australia
| | - Miguel A Vadillo
- Department of Basic Psychology, Autonomous University of Madrid, Madrid, Spain
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12
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Frayon S, Swami V, Wattelez G, Todd J, Galy O. Associations between weight status, body satisfaction, ethnic identity and self-esteem in Oceanian adolescents. Pediatr Obes 2021; 16:e12824. [PMID: 34184838 DOI: 10.1111/ijpo.12824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 05/15/2021] [Accepted: 06/09/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Self-esteem has consistently been observed to be relatively low in adolescents with obesity. In the Pacific region, the prevalence of obesity in adolescence is high, but few studies have considered issues of self-esteem in this population. OBJECTIVE To examine associations between weight status, body dissatisfaction and self-esteem in a sample of New Caledonian adolescents and to test for moderation effects of ethnicity on predictors of self-esteem. METHODS Objective anthropometric measures (height, weight, waist circumference and thickness of skinfolds) were obtained in a multi-ethnic sample of New Caledonian adolescents. Body mass index (BMI), waist-to-height ratio and the sum of four skinfolds thickness were used as proxies of weight status. Indices of ethnic identity, self-esteem, socio-demographic data (socioeconomic status, ethnicity, gender, urbanicity of residence) and body dissatisfaction were obtained using survey methods. RESULTS Between-group analyses indicated that adolescents of European/white origin had significantly higher self-esteem than adolescents with Oceanian Non-European Non-Asian ancestry (ONENA). However, low self-esteem was significantly associated with weight status and body dissatisfactions in European/white adolescents but not ONENA adolescents. Ethnicity moderated the relationships of predictors (BMI z-score, body dissatisfaction, age, urbanicity and ethnic identity) on self-esteem, and the strongest predictors of self-esteem were ethnicity and ethnic identity. CONCLUSIONS While self-esteem has important consequences for adolescent well-being and health outcomes, these results highlight the importance of applying different steps to develop and maintain healthy self-esteem in the Pacific region.
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Affiliation(s)
- Stéphane Frayon
- Interdisciplinary Laboratory for Research in Education, EA 7483, School of Education, University of New Caledonia, Nouméa, New Caledonia
| | - Viren Swami
- School of Psychology and Sport Science, Anglia Ruskin University, Cambridge, UK.,Centre for Psychological Medicine, Perdana University, Serdang, Malaysia
| | - Guillaume Wattelez
- Interdisciplinary Laboratory for Research in Education, EA 7483, School of Education, University of New Caledonia, Nouméa, New Caledonia
| | - Jennifer Todd
- School of Psychology and Sport Science, Anglia Ruskin University, Cambridge, UK
| | - Olivier Galy
- Interdisciplinary Laboratory for Research in Education, EA 7483, School of Education, University of New Caledonia, Nouméa, New Caledonia
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13
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Myers A, Camidge D, Croden F, Gibbons C, Stubbs RJ, Blundell J, Finlayson G, Buckland N. Free-Living Energy Balance Behaviors Are Associated With Greater Weight Loss During a Weight Loss Program. Front Nutr 2021; 8:688295. [PMID: 34595197 PMCID: PMC8478016 DOI: 10.3389/fnut.2021.688295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 07/28/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: Free-living movement (physical activity [PA] and sedentary behavior [SB]) and eating behaviors (energy intake [EI] and food choice) affect energy balance and therefore have the potential to influence weight loss (WL). This study explored whether free-living movement and/or eating behaviors measured early (week 3) in a 14-week WL programme or their change during the intervention are associated with WL in women. Methods: In the study, 80 women (M ± SD age: 42.0 ± 12.4 years) with overweight or obesity [body mass index (BMI): 34.08 ± 3.62 kg/m2] completed a 14 week WL program focused primarily on diet (commercial or self-led). Body mass (BM) was measured at baseline, and again during week 2 and 14 along with body composition. Free-living movement (SenseWear Armband) and eating behavior (weighed food diaries) were measured for 1 week during week 3 and 12. Hierarchical multiple regression analyses examined whether early and early-late change in free-living movement and eating behavior were associated with WL. The differences in behavior between clinically significant weight losers (CWL; ≥5% WL) and non-clinically significant weight losers (NWL; ≤ 3% WL) were compared. Results: The energy density of food consumed [β = 0.45, p < 0.001] and vigorous PA [β = -0.30, p < 0.001] early in the intervention (regression model 1) and early-late change in light PA [β = -0.81 p < 0.001], moderate PA [β = -1.17 p < 0.001], vigorous PA [β = -0.49, p < 0.001], total energy expenditure (EE) [β = 1.84, p < 0.001], and energy density of food consumed [β = 0.27, p = 0.01] (regression model 2) significantly predicted percentage change in BM. Early in the intervention, CWL consumed less energy dense foods than NWL [p = 0.03]. CWL showed a small but significant increase in vigorous PA, whereas NWL showed a slight decrease in PA [p = 0.04]. Conclusion: Both early and early-late change in free-living movement and eating behaviors during a 14 week WL program are predictors of WL. These findings demonstrate that specific behaviors that contribute to greater EE (e.g., vigorous PA) and lower EI (e.g., less energy-dense foods) are related to greater WL outcomes. Interventions targeting these behaviors can be expected to increase the effectiveness of WL programs.
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Affiliation(s)
- Anna Myers
- Sport and Physical Activity Research Center, College of Health, Wellbeing, and Life Sciences, Sheffield Hallam University, Sheffield, United Kingdom
| | - Diana Camidge
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, United Kingdom
| | - Fiona Croden
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, United Kingdom
| | - Catherine Gibbons
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, United Kingdom
| | - R James Stubbs
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, United Kingdom
| | - John Blundell
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, United Kingdom
| | - Graham Finlayson
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, United Kingdom
| | - Nicola Buckland
- Department of Psychology, University of Sheffield, Sheffield, United Kingdom
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14
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Annesi JJ. Additional Effects of Reduced Emotional Eating on Associations of Weight Loss via Changes in Social Cognitive Theory Variables. Int J Behav Med 2021; 29:408-415. [PMID: 34528214 DOI: 10.1007/s12529-021-10025-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Improvements in the theory-based psychosocial variables of eating self-regulation, mood, and self-efficacy for controlled eating significantly predicted weight loss in community-based obesity treatments. However, in women, additional effects from reductions in emotional eating, and age and race/ethnicity are unclear. METHODS Women (N = 130) participating in a community-based cognitive-behavioral obesity treatment were assessed on changes in theory-based psychosocial variables and weight. RESULTS Treatment-associated improvements in self-regulation, mood, and self-efficacy over 3 months significantly predicted 6-month weight loss (R2 = 0.26), with self-regulation change being the strongest individual predictor. Entry of change in emotional eating into the prediction model significantly added to the variance in weight change explained. Age and race/ethnicity did not further improve the predictive strength. CONCLUSIONS In addition to targeting self-regulation skill development and, to a lesser extent addressing mood and self-efficacy improvements, behavioral obesity treatments should focus on emotional eating to maximize their large-scale effects on excess weight.
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Affiliation(s)
- James J Annesi
- University of Alabama at Birmingham, Birmingham, AL, USA. .,Central Coast YMCA, Monterey, CA, USA.
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15
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García-Galbis MR, Gallardo DI, Martínez-Espinosa RM, Soto-Méndez MJ. Personalized Diet in Obesity: A Quasi-Experimental Study on Fat Mass and Fat-Free Mass Changes. Healthcare (Basel) 2021; 9:1101. [PMID: 34574875 PMCID: PMC8469514 DOI: 10.3390/healthcare9091101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/06/2021] [Accepted: 08/11/2021] [Indexed: 11/16/2022] Open
Abstract
Considering that the prevalence of overweight and obesity in Southeast of Spain is high, the aim of this work was to analyze the relation between the adherence to a personalized diet and the effectiveness of changes in the body composition in overweight and obese adults in this region. This quasi-experimental study presents the following selection criteria: attendance at the consultation between 2006 and 2012, subjects ≥ 19 years of age with overweight or obesity. In total, 591 overweight or obese individuals were involved in this study, attending 4091 clinic consultations in total. Most of the sample consisted of subjects who attended >3 consultations (>1.5 months), and were females aged 19-64 years who obtained clinically significant changes in fat mass (FM, ≥5%) and recommended changes in fat-free mass (FFM, ≥0%). Based on the results obtained and the experience gained from this research, the following recommendations are established: (i) record fat mass and fat-free mass index as a complement to body mass index; (ii) use FM and FFM to evaluate effectiveness of interventions with the aim of obtaining body composition changes; (iii) use personalized diet to achieve significant changes in FM and avoid non-recommended changes in FFM.
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Affiliation(s)
- Manuel Reig García-Galbis
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Isabel I University, 09003 Burgos, Spain
| | - Diego I. Gallardo
- Department of Mathematics, University of Atacama, Copiapó 1530000, Chile;
- Faculty of Medicine, University of Atacama, Copiapó 1530000, Chile
| | - Rosa María Martínez-Espinosa
- Department of Agrochemistry and Biochemistry, Division of Biochemistry and Molecular Biology, Faculty of Sciences, University of Alicante, 03690 Alicante, Spain;
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16
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May CN, Ho AS, Yang Q, McCallum M, Iyengar NM, Comander A, Mitchell ES, Michaelides A. Comparing Outcomes of a Digital Commercial Weight Loss Program in Adult Cancer Survivors and Matched Controls with Overweight or Obesity: Retrospective Analysis. Nutrients 2021; 13:2908. [PMID: 34578787 DOI: 10.3390/nu13092908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 11/16/2022] Open
Abstract
Maintaining a healthy weight is beneficial for cancer survivors. However, weight loss program effectiveness studies have primarily been in highly controlled settings. This is a retrospective study exploring real-world outcomes (weight loss and program engagement) after use of a digital commercial weight loss program (Noom) in cancer survivors and matched controls. All participants had voluntarily self-enrolled in Noom. Weight and engagement data were extracted from the program. Cancer-related quality of life was secondarily assessed in a one-time cross-sectional survey for survivors. Controls were a sample of Noom users with overweight/obesity who had no history of cancer but 0–1 chronic conditions. Primary outcomes were weight change at 16 weeks and program engagement over 16 weeks. Engagement included frequency of weight, food, and physical activity logging, as well as number of coach messages. Multiple regression controlling for baseline age, gender, engagement, and BMI showed that survivors lost less weight than controls (B = −2.40, s.e. = 0.97, p = 0.01). Survivors also weighed in less (survivors: 5.4 [2.3]; controls: 5.7 [2.1], p = 0.01) and exercised less (survivors: 1.8 [3.2]; controls: 3.2 [4.1], p < 0.001) than controls. However, survivors sent more coach messages (survivors: 2.1 [2.4]; controls: 1.7 [2.0], p < 0.001). Despite controls losing more weight than cancer survivors (−7.0 kg vs. −5.3 kg), survivors lost significant weight in 4 months (M = −6.2%). Cancer survivors can have success on digital commercial programs available outside of a clinical trial. However, they may require additional support to engage in weight management behaviors.
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17
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Wiedemann AA, Baumgardt SS, Ivezaj V, Kerrigan SG, Lydecker JA, Grilo CM, Barnes RD. Getting a head start: identifying pretreatment correlates associated with early weight loss for individuals participating in weight loss treatment. Transl Behav Med 2021; 11:236-243. [PMID: 31816053 DOI: 10.1093/tbm/ibz149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Early weight loss is associated with greater weight loss following treatment cessation and years later. The present study aimed to identify pretreatment correlates associated with early weight loss in adults participating in weight-loss treatment in primary care. Participants (N = 89) were in the overweight/obesity range seeking weight-loss treatment in primary-care settings and randomized to one of three treatments: Motivational Interviewing and Internet Condition (MIC), Nutrition Psychoeducation and Internet Condition (NPC), or Usual Care (UC). At baseline, participants were assessed with the Eating Disorder Examination (EDE) interview and completed self-report measures of emotional overeating, exercise, exercise self-efficacy, and depression. Percent weight loss at week six was used as the Early Weight Loss variable. MIC/NPC groups had significantly greater Early Weight Loss than UC. Among MIC/NPC participants only, greater Early Weight Loss was associated with significantly lower pretreatment disordered eating and depressive symptoms. Participants in MIC/NPC who achieved clinically meaningful weight loss (>2.5%) by week six compared with those who did not (<2.5%) reported lower pretreatment disordered eating. Demographic factors and binge-eating disorder diagnosis were unrelated to Early Weight Loss. Our findings suggest that greater early weight loss may be associated with less pretreatment disordered eating and depressive symptoms. CLINICAL TRIALS NCT01558297.
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Affiliation(s)
| | | | - Valentina Ivezaj
- Psychiatry Department, Yale School of Medicine, New Haven, CT, USA
| | | | - Janet A Lydecker
- Psychiatry Department, Yale School of Medicine, New Haven, CT, USA
| | - Carlos M Grilo
- Psychiatry Department, Yale School of Medicine, New Haven, CT, USA.,Department of Psychology, Yale University, New Haven, CT, USA
| | - Rachel D Barnes
- Psychiatry Department, Yale School of Medicine, New Haven, CT, USA
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18
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Thom G, Messow CM, Leslie WS, Barnes AC, Brosnahan N, McCombie L, Al-Mrabeh A, Zhyzhneuskaya S, Welsh P, Sattar N, Taylor R, Lean MEJ. Predictors of type 2 diabetes remission in the Diabetes Remission Clinical Trial (DiRECT). Diabet Med 2021; 38:e14395. [PMID: 32870520 DOI: 10.1111/dme.14395] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/30/2020] [Accepted: 08/25/2020] [Indexed: 01/09/2023]
Abstract
AIM To identify predictors of type 2 diabetes remission in the intervention arm of DiRECT (Diabetes Remission Clinical Trial). METHODS Participants were aged 20-65 years, with type 2 diabetes duration of <6 years and BMI 27-45 kg/m2 , and were not receiving insulin. Weight loss was initiated by total diet replacement (825-853 kcal/day, 3-5 months, shakes/soups), and weight loss maintenance support was provided for 2 years. Remissions (HbA1c <48 mmol/mol [<6.5%], without antidiabetes medications) in the intervention group (n = 149, mean age 53 years, BMI 35 kg/m2 ) were achieved by 68/149 participants (46%) at 12 months and by 53/149 participants (36%) at 24 months. Potential predictors were examined by logistic regression analyses, with adjustments for weight loss and effects independent of weight loss. RESULTS Baseline predictors of remission at 12 and 24 months included being prescribed fewer antidiabetes medications, having lower triglyceride and gamma-glutamyl transferase levels, and reporting better quality of life with less anxiety/depression. Lower baseline HbA1c was a predictor at 12 months, and older age and male sex were predictors at 24 months. Being prescribed antidepressants predicted non-remission. Some, but not all effects were explained by weight loss. Weight loss was the strongest predictor of remission at 12 months (adjusted odds ratio per kg weight loss 1.24, 95% CI 1.14, 1.34; P < 0.0001) and 24 months (adjusted odds ratio 1.23, 95% CI 1.13, 1.35; P <0.0001). Weight loss in kilograms and percentage weight loss were equally good predictors. Early weight loss and higher programme attendance predicted more remissions. Baseline BMI, fasting insulin, fasting C-peptide and diabetes duration did not predict remission. CONCLUSIONS Other than weight loss, most predictors were modest, and not sufficient to identify subgroups for which remission was not a worthwhile target.
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Affiliation(s)
- G Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - C-M Messow
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - W S Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - A C Barnes
- Human Nutrition Research Centre, Institute of Health and Society, Newcastle University, Newcastle-upon-Tyne, UK
| | - N Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - L McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - A Al-Mrabeh
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - S Zhyzhneuskaya
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - P Welsh
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - N Sattar
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - R Taylor
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - M E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
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19
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Affiliation(s)
- Michelle Kelsey
- Duke Clinical Research Institute, Durham, North Carolina, USA .,Division of Cardiology, Department of Medicine, Duke University, Durham, NC, USA
| | - Neha Pagidipati
- Duke Clinical Research Institute, Durham, North Carolina, USA.,Division of Cardiology, Department of Medicine, Duke University, Durham, NC, USA
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20
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Annesi JJ, Walsh SM. Evaluation of a new causal chain model for predicting embedded psychosocial and behavioral relationships in a community-based obesity treatment seeking maintained weight loss. Scand J Psychol 2021; 62:574-585. [PMID: 34060091 DOI: 10.1111/sjop.12741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 04/21/2021] [Indexed: 01/08/2023]
Abstract
A new causal chain model positing theory- and research-based interrelationships among psychosocial and behavioral variables leading to weight loss and its maintenance was assessed. Two samples of women participating in community-based cognitive-behavioral obesity treatments were assessed over either 6 months (weight loss phase; N = 103), or additionally including Months 6-12 (weight-loss maintenance phase; N = 101). Analyses first evaluated whether baseline physical, demographic, behavioral (physical activity, fruit/vegetable intake), and/or psychosocial (self-regulation, self-efficacy, negative mood) variables significantly predicted weight change. Further analyses assessed whether changes in model-based behavioral and psychosocial variables significantly differed by groupings of participants based on their short-term weight loss and weight-loss maintenance/further loss. The predictive value of changes in the psychosocial variables on behavioral changes was next assessed, also accounting for group. Finally, mediation, moderation, and moderated mediation analyses tested proposed causal chain-based interrelationships among variables. Of the 12 variables assessed at baseline, only weight was inversely associated with lost weight, and only fruit/vegetable intake was positively associated with effects during the weight-loss maintenance phase. Overall improvements in behavioral and psychosocial variables were significantly greater in participant groupings with better weight loss and weight-loss maintenance results. Changes in self-regulation, self-efficacy, and mood significantly predicted the weight-loss behavior changes, unaffected by group. Results from the five mediation, moderation, and moderated mediation analyses supported hypotheses based on the new causal chain model. The field testing indicated adequacy of the new causal chain model and informed architectures of behavioral obesity treatments concerned with long-term reductions in excess weight.
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Affiliation(s)
- James J Annesi
- University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stephanie M Walsh
- Emory University School of Medicine, Atlanta, GA, USA.,Children's Heathcare of Atlanta, Atlanta, GA, USA
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21
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Mitchell ES, Yang Q, Ho AS, Behr H, May CN, DeLuca L, Michaelides A. Self-Reported Nutritional Factors Are Associated with Weight Loss at 18 Months in a Self-Managed Commercial Program with Food Categorization System: Observational Study. Nutrients 2021; 13:nu13051733. [PMID: 34065277 PMCID: PMC8160976 DOI: 10.3390/nu13051733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/14/2021] [Accepted: 05/15/2021] [Indexed: 12/14/2022] Open
Abstract
Little is known about nutritional factors during weight loss on digital commercial weight loss programs. We examined how nutritional factors relate to weight loss for individuals after 4 and 18 months on a mobile commercial program with a food categorization system based on energy density (Noom). This is a two-part (retrospective and cross-sectional) cohort study. Two time points were used for analysis: 4 months and 18 months. For 4-month analyses, current Noom users who met inclusion criteria (n = 9880) were split into 5% or more body weight loss and stable weight loss (0 ± 1%) groups. Individuals who fell into one of these groups were analyzed at 4 months (n = 3261). For 18-month analyses, individuals from 4-month analyses who were still on Noom 18 months later were invited to take a one-time survey (n = 803). At 18 months 148 participants were analyzed. Noom has a system categorizing foods as low-, medium-, and high-energy-dense. Measures were self-reported proportions of low-, medium-, and high-energy-dense foods, and self-reported nutritional factors (fruit and vegetable intake, dietary quality, nutrition knowledge, and food choice). Nutritional factors were derived from validated survey measures, and food choice from a novel validated computerized task in which participants chose a food they would want to eat right now. ANOVAs compared participants with 5% or more body weight loss and participants with stable weight (0 ± 1%) at 4 months on energy density proportions. Analyses at 18 months compared nutritional factors across participants with >10% (high weight loss), 5–10% (moderate weight loss), and less than 5% body weight loss (low weight loss), and then assessed associations between nutritional factors and weight loss. Individuals with greater weight loss reported consuming higher proportions of low-energy-dense foods and lower proportions of high-energy-dense foods than individuals with less weight loss at 4 months and 18 months (all ps < 0.02). Individuals with greater weight loss had higher fruit and vegetable intake (p = 0.03), dietary quality (p = 0.02), nutrition knowledge (p < 0.001), and healthier food choice (p = 0.003) at 18 months. Only nutrition knowledge and food choice were associated with weight loss at 18 months (B = −19.44, 95% CI: −33.19 to −5.69, p = 0.006; B = −5.49, 95% CI: −8.87 to −2.11, p = 0.002, respectively). Our results highlight the potential influence of nutrition knowledge and food choice in weight loss on a self-managed commercial program. We also found for the first time that in-the-moment inclination towards food even when just depicted is associated with long-term weight loss.
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Affiliation(s)
- Ellen S. Mitchell
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (A.S.H.); (H.B.); (C.N.M.); (L.D.); (A.M.)
- Correspondence:
| | - Qiuchen Yang
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (A.S.H.); (H.B.); (C.N.M.); (L.D.); (A.M.)
| | - Annabell S. Ho
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (A.S.H.); (H.B.); (C.N.M.); (L.D.); (A.M.)
| | - Heather Behr
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (A.S.H.); (H.B.); (C.N.M.); (L.D.); (A.M.)
- Department of Integrative Health, Saybrook University, 55 W Eureka Street, Pasadena, CA 91103, USA
| | - Christine N. May
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (A.S.H.); (H.B.); (C.N.M.); (L.D.); (A.M.)
| | - Laura DeLuca
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (A.S.H.); (H.B.); (C.N.M.); (L.D.); (A.M.)
- Ferkauf Graduate School of Psychology, Yeshiva University, 1165 Morris Park Avenue, Bronx, NY 10461, USA
| | - Andreas Michaelides
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (A.S.H.); (H.B.); (C.N.M.); (L.D.); (A.M.)
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22
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Hugh-Jones S, Burke S, Stubbs J. "I didn't want to do it on my own": A qualitative study of women's perceptions of facilitating and risk factors for weight control on a UK commercial community program. Appetite 2021; 165:105308. [PMID: 34010725 DOI: 10.1016/j.appet.2021.105308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 11/24/2022]
Abstract
Overweight and obesity remain serious public health concerns. Outcomes from community based commercial weight management programmes vary, relapse is common and drop out is high. Outcomes could be improved by better understanding experiences on these programmes. The aim of our study was to generate accounts of people's experience on a commercial weight-management program to identify what experiences were perceived as facilitating, and what posed risks, to programme effectiveness and compliance. We conducted individual, semi-structured interviews with eighteen Caucasian women (mean age 45.4y) who were members of nation-wide UK commercial, fee-paying, community weight management programme. Interview data was analysed via framework analysis. Participants' experiences indicated that the programme helped by triggering several intra- and interpersonal processes that catalysed change across psychological, physiological, dietary and behavioural areas of their life. Risks to program adherence and effectiveness spanned well-known risks such as self-regulation fatigue and the difficulty of recovering from negative self-criticism, as well as new factors such as the confusing nature of weight change, the relatively powerful impact of everyday events, and the difficulty in getting the balance right between personalised support vs. intrusion. The complexity of reported experiences challenges the linear, predictive pathways of change proposed by many health behaviour models of weight management. To improve effectiveness, programmes need to go well beyond behavioural and dietary support. It is recommended that community, commercial programmes educate people about the physiological and psychological tensions they will encounter, why people lose weight at different rates, the likelihood of weight relapse and strategies to manage these, including evidence-based support for managing self-criticism.
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Stubbs RJ, Duarte C, Palmeira AL, Sniehotta FF, Horgan G, Larsen SC, Marques MM, Evans EH, Ermes M, Harjumaa M, Turicchi J, O'Driscoll R, Scott SE, Pearson B, Ramsey L, Mattila E, Matos M, Sacher P, Woodward E, Mikkelsen ML, Sainsbury K, Santos I, Encantado J, Stalker C, Teixeira PJ, Heitmann BL. Evidence-Based Digital Tools for Weight Loss Maintenance: The NoHoW Project. Obes Facts 2021; 14:320-333. [PMID: 33915534 PMCID: PMC8255638 DOI: 10.1159/000515663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 03/04/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Effective interventions and commercial programmes for weight loss (WL) are widely available, but most people regain weight. Few effective WL maintenance (WLM) solutions exist. The most promising evidence-based behaviour change techniques for WLM are self-monitoring, goal setting, action planning and control, building self-efficacy, and techniques that promote autonomous motivation (e.g., provide choice). Stress management and emotion regulation techniques show potential for prevention of relapse and weight regain. Digital technologies (including networked-wireless tracking technologies, online tools and smartphone apps, multimedia resources, and internet-based support) offer attractive tools for teaching and supporting long-term behaviour change techniques. However, many digital offerings for weight management tend not to include evidence-based content and the evidence base is still limited. The Project: First, the project examined why, when, and how many European citizens make WL and WLM attempts and how successful they are. Second, the project employed the most up-to-date behavioural science research to develop a digital toolkit for WLM based on 2 key conditions, i.e., self-management (self-regulation and motivation) of behaviour and self-management of emotional responses for WLM. Then, the NoHoW trial tested the efficacy of this digital toolkit in adults who achieved clinically significant (≥5%) WL in the previous 12 months (initial BMI ≥25). The primary outcome was change in weight (kg) at 12 months from baseline. Secondary outcomes included biological, psychological, and behavioural moderators and mediators of long-term energy balance (EB) behaviours, and user experience, acceptability, and cost-effectiveness. IMPACT The project will directly feed results from studies on European consumer behaviour, design and evaluation of digital toolkits self-management of EB behaviours into development of new products and services for WLM and digital health. The project has developed a framework and digital architecture for interventions in the context of EB tracking and will generate results that will help inform the next generation of personalised interventions for effective self-management of weight and health.
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Affiliation(s)
- R. James Stubbs
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - Cristiana Duarte
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
- Center for Research in Neuropsychology and Cognitive and Behavioral Intervention, University of Coimbra, Coimbra, Portugal
| | - António L. Palmeira
- Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal
| | - Falko F. Sniehotta
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle, United Kingdom
| | - Graham Horgan
- Biomathematics and Statistics Scotland (James Hutton Institute), Aberdeen, United Kingdom
| | - Sofus C. Larsen
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
| | - Marta M. Marques
- Trinity Centre for Practice and Healthcare Innovation and ADAPT Centre, Trinity College Dublin, Dublin, Ireland
| | - Elizabeth H. Evans
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle, United Kingdom
| | - Miikka Ermes
- VTT Technical Research Centre of Finland, Espoo, Finland
| | - Marja Harjumaa
- VTT Technical Research Centre of Finland, Espoo, Finland
| | - Jake Turicchi
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - Ruari O'Driscoll
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - Sarah E. Scott
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - Beth Pearson
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - Lauren Ramsey
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - Elina Mattila
- VTT Technical Research Centre of Finland, Espoo, Finland
| | - Marcela Matos
- Center for Research in Neuropsychology and Cognitive and Behavioral Intervention, University of Coimbra, Coimbra, Portugal
| | - Paul Sacher
- Childhood Nutrition Research Centre, University College London, London, United Kingdom
| | - Euan Woodward
- European Association for the Study of Obesity, Teddington, United Kingdom
| | - Marie-Louise Mikkelsen
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
| | - Kirby Sainsbury
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle, United Kingdom
| | - Inês Santos
- Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal
- Laboratório de Nutrição, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Jorge Encantado
- Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal
| | - Carol Stalker
- College of Life and Natural Sciences, University of Derby, Derby, United Kingdom
| | - Pedro J. Teixeira
- Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal
| | - Berit Lilienthal Heitmann
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
- The Boden Institute of Obesity, Nutrition, Exercise and Eating Disorders, The University of Sydney, Sydney, New South Wales, Australia
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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24
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Canuto R, Garcez A, de Souza RV, Kac G, Olinto MTA. Nutritional intervention strategies for the management of overweight and obesity in primary health care: A systematic review with meta-analysis. Obes Rev 2021; 22:e13143. [PMID: 33006421 DOI: 10.1111/obr.13143] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/17/2020] [Accepted: 08/22/2020] [Indexed: 12/29/2022]
Abstract
A systematic review with meta-analysis (MA) was conducted to synthesize the effectiveness of nutrition intervention strategies for managing overweight and obesity in the adult population attending primary health care. Relevant articles were searched in the PubMed, Embase, Web of Science, Cochrane and LILACS databases from inception to January 2020. Seventy studies were identified: 45 randomized controlled trials (RCTs) and 25 uncontrolled before-after studies (UBAs). The MA of nutritional intervention revealed a reduced average estimate of the effect on weight in RCTs (weighted mean differences [WMD] = -1.80 kg, 95% confidence interval [CI], -2.40 to -1.19), BMI (WMD = -0.80 kg/m2 , 95% CI, -1.11 to -0.49), and WC (WMD = -2.28 cm, 95% CI, -3.06 to -1.49); and for UBAs showed reductions in weight (WMD = -4.17 kg; 95% CI, -5.18 to -1.70), BMI (WMD = -1.26 kg/m2 ; 95% CI, -1.81 to -0.72) and (WMD = -2.90 cm; 95%CI, -4.21 to -1.59). There was no association between treatment effect and follow-up for both designs. Nutritional interventions alone yielded a higher but nonsignificant average reduction on weight when compared with combined components intervention. Interventions delivered through individual or group sessions showed a similar positive effect on weight decrease. The dietary prescription approach yielded a greater effect on weight loss than did the behavioural approaches but only in UBA studies.
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Affiliation(s)
- Raquel Canuto
- Postgraduate Program in Food, Nutrition and Health, Federal University of Rio Grande do Sul, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.,Postgraduate Graduate Program in Nutrition Sciences, Federal University of Health Science of Porto Alegre, UFCSPA, Porto Alegre, Rio Grande do Sul, Brazil
| | - Anderson Garcez
- Postgraduate Graduate Program in Nutrition Sciences, Federal University of Health Science of Porto Alegre, UFCSPA, Porto Alegre, Rio Grande do Sul, Brazil.,Postgraduate Program in Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, Rio Grande do Sul, Brazil
| | | | - Gilberto Kac
- Institute of Nutrition, Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, Rio Grande do Sul, Brazil
| | - Maria Teresa Anselmo Olinto
- Postgraduate Program in Food, Nutrition and Health, Federal University of Rio Grande do Sul, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.,Postgraduate Program in Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, Rio Grande do Sul, Brazil
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25
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Mitchell ES, Yang Q, Behr H, Ho A, DeLuca L, May CN, Michaelides A. Psychosocial Characteristics by Weight Loss and Engagement in a Digital Intervention Supporting Self-Management of Weight. Int J Environ Res Public Health 2021; 18:ijerph18041712. [PMID: 33578975 PMCID: PMC7916717 DOI: 10.3390/ijerph18041712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 01/01/2023]
Abstract
There is substantial variability in weight loss outcomes. Psychosocial characteristics underlying outcomes require better understanding, particularly on self-managed digital programs. This cross-sectional study examines differences in psychosocial characteristics by weight loss and engagement outcome, and which characteristics are most associated with weight loss, on a self-managed digital weight loss program. Some underexplored psychosocial characteristics are included, such as flourishing, or a sense of meaning and purpose in life. A questionnaire was emailed to a random sample of 10,000 current users at week 5 in the program and 10,000 current users at week 17. The questionnaire was completed by 2225 users, and their self-reported weight and recorded program engagement data were extracted from the program’s database. Multiple comparison tests indicated that mental health quality of life, depression, anxiety, work-life balance, and flourishing differed by weight loss outcome at program end (week 17; ≥5%, 2–5%, below 2%) and by engagement tertile at program beginning and end (weeks 5 and 17). Only anxiety was associated with weight loss in a backward stepwise regression controlling for engagement and sociodemographic characteristics. Flourishing did not predict weight loss overall but predicted the weight loss outcome group. Our findings have implications for creating more effective interventions for individuals based on psychosocial characteristics and highlight the potential importance of anxiety in underexplored self-managed digital programs.
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Affiliation(s)
- Ellen S. Mitchell
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (H.B.); (A.H.); (L.D.); (C.N.M.); (A.M.)
- Correspondence:
| | - Qiuchen Yang
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (H.B.); (A.H.); (L.D.); (C.N.M.); (A.M.)
| | - Heather Behr
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (H.B.); (A.H.); (L.D.); (C.N.M.); (A.M.)
- Department of Integrative Health, Saybrook University, 55 W Eureka St, Pasadena, CA 91103, USA
| | - Annabell Ho
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (H.B.); (A.H.); (L.D.); (C.N.M.); (A.M.)
| | - Laura DeLuca
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (H.B.); (A.H.); (L.D.); (C.N.M.); (A.M.)
- Ferkauf Graduate School of Psychology, Yeshiva University, 1165 Morris Park Ave, Bronx, NY 10461, USA
| | - Christine N. May
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (H.B.); (A.H.); (L.D.); (C.N.M.); (A.M.)
| | - Andreas Michaelides
- Academic Research, Noom, 229 W 28th St., New York, NY 10001, USA; (Q.Y.); (H.B.); (A.H.); (L.D.); (C.N.M.); (A.M.)
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26
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Verberne LDM, Leemrijse CJ, Nielen MMJ, Friele RD. Intermediate weight changes and follow-up of dietetic treatment in primary health care: an observational study. BMC Nutr 2020; 6:62. [PMID: 33292684 PMCID: PMC7667732 DOI: 10.1186/s40795-020-00377-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 09/01/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Primary health care data have shown that most patients who were treated for overweight or obesity by a dietitian did not accomplish the recommended treatment period. It is hypothesised that a slow rate of weight loss might discourage patients from continuing dietetic treatment. This study evaluated intermediate weight changes during regular dietetic treatment in Dutch primary health care, and examined whether weight losses at previous consultations were associated with attendance at follow-up consultations. METHODS This observational study was based on real life practice data of overweight and obese patients during the period 2013-2017, derived from Dutch dietetic practices that participated in the Nivel Primary Care Database. Multilevel regression analyses were conducted to estimate the mean changes in body mass index (BMI) during six consecutive consultations and to calculate odds ratios for the association of weight change at previous consultations with attendance at follow-up consultations. RESULTS The total study population consisted of 25,588 overweight or obese patients, with a mean initial BMI of 32.7 kg/m2. The BMI decreased between consecutive consultations, with the highest weight losses between the first and second consultation. After six consultations, a mean weight loss of - 1.5 kg/m2 was estimated. Patients who lost weight between the two previous consultations were more likely to attend the next consultation than patients who did not lose weight or gained weight. CONCLUSIONS Body mass index decreased during consecutive consultations, and intermediate weight losses were associated with a higher attendance at follow-up consultations during dietetic treatment in overweight patients. Dietitians should therefore focus on discussing intermediate weight loss expectations with their patients.
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Affiliation(s)
- Lisa D M Verberne
- Nivel, Netherlands Institute for Health Services Research, P.O. Box 1568, Utrecht, 3500 BN, The Netherlands.
| | - Chantal J Leemrijse
- Nivel, Netherlands Institute for Health Services Research, P.O. Box 1568, Utrecht, 3500 BN, The Netherlands
| | - Markus M J Nielen
- Nivel, Netherlands Institute for Health Services Research, P.O. Box 1568, Utrecht, 3500 BN, The Netherlands
| | - Roland D Friele
- Nivel, Netherlands Institute for Health Services Research, P.O. Box 1568, Utrecht, 3500 BN, The Netherlands.,Tilburg School of Social and Behavioral Sciences, Tilburg University, Tranzo, P.O. Box 90153, Tilburg, 5000 LE, The Netherlands
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27
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De Pergola G, Zupo R, Lampignano L, Bonfiglio C, Giannelli G, Osella AR, Triggiani V. Higher Body Mass Index, Uric Acid Levels, and Lower Cholesterol Levels are Associated with Greater Weight Loss. Endocr Metab Immune Disord Drug Targets 2020; 20:1268-1281. [DOI: 10.2174/1871530320666200429235830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/30/2019] [Accepted: 01/17/2020] [Indexed: 01/02/2023]
Abstract
Background:
Identifying predictive factors that contribute to changes in body weight may
well be an interesting approach to the management of obesity.
Objective:
This study was firstly aimed at examining the effect of a one-year lifestyle program based
on improvements in the habitual diet and increased levels of physical activity on weight loss. Secondly,
it was focused on identifying anthropometric, and serum hormonal, metabolic and haematochemical
factors which can be associated with the degree of weight loss in Kg.
Methods:
488 overweight or obese subjects, 383 women and 105 men, aged 18-67 years, were enrolled
in the study. Body mass index, waist circumference, serum blood glucose, lipids, uric acid, creatinine,
insulin, TSH, FT3, FT4, and 24-h urine catecholamines were measured.
Results:
Weight loss was positively associated with BMI (P < 0.01), waist circumference (P < 0.01),
uric acid (P < 0.01), creatinine (P < 0.05), smoking (P < 0.01), and negatively correlated with age (P <
0.01), total cholesterol (P < 0.05), LDL-cholesterol (P < 0.01), HDL cholesterol (P < 0.05). In a multiple
regression model considering weight loss as a dependent variable, and smoking, age, BMI, uric
acid, creatinine, total cholesterol, LDL-cholesterol and HDL cholesterol as independent variables,
weight loss maintained a direct independent relationship with BMI (P < 0.001), uric acid (P < 0.05),
LDL-cholesterol (P < 0.05), and HDL-cholesterol (P < 0.05), and an inverse independent association
with cholesterol (P < 0.01).
Conclusions:
This study suggests that higher BMI and uric acid levels, and lower total cholesterol concentrations
are associated with a greater potential to lose weight.
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Affiliation(s)
- Giovanni De Pergola
- Clinical Nutrition Unit, Medical Oncology, Department of Biomedical Science and Human Oncology, University of Bari, School of Medicine, Policlinic, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Roberta Zupo
- National Institute of Gastroenterology "S. de Bellis," Research Hospital, 70013, Castellana Grotte, Italy
| | - Luisa Lampignano
- National Institute of Gastroenterology "S. de Bellis," Research Hospital, 70013, Castellana Grotte, Italy
| | - Caterina Bonfiglio
- National Institute of Gastroenterology "S. de Bellis," Research Hospital, 70013, Castellana Grotte, Italy
| | - Gianluigi Giannelli
- National Institute of Gastroenterology "S. de Bellis," Research Hospital, 70013, Castellana Grotte, Italy
| | - Alberto R. Osella
- National Institute of Gastroenterology "S. de Bellis," Research Hospital, 70013, Castellana Grotte, Italy
| | - Vincenzo Triggiani
- Endocrinology and Metabolic Diseases, Interdisciplinary Department of Medicine, University of Bari “A. Moro” Bari, Italy
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Abstract
PURPOSE OF REVIEW Obesity is a significant international public health epidemic with major downstream consequences on morbidity and mortality. While lifestyle factors contribute, there is an evolving understanding of genomic and metabolomic pathways involved with obesity and its relationship with cardiometabolic risk. This review will provide an overview of some of these important findings from both a biologic and clinical perspective. RECENT FINDINGS Recent studies have identified polygenic risk scores and metabolomic biomarkers of obesity and related outcomes, which have also highlighted biological pathways, such as the branched-chain amino acid (BCAA) pathway that is dysregulated in this disease. These biomarkers may help in personalizing obesity interventions and for mitigation of future cardiometabolic risk. A multifaceted approach is necessary to impact the growing epidemic of obesity and related diseases. This will likely include incorporating precision medicine approaches with genomic and metabolomic biomarkers to personalize interventions and improve risk prediction.
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Affiliation(s)
- Jessica A Regan
- Department of Medicine, Duke University, Durham, NC, USA.,Duke Molecular Physiology Institute, Duke University, 300 N. Duke Street, DUMC, Box 104775, Durham, NC, 27701, USA
| | - Svati H Shah
- Department of Medicine, Duke University, Durham, NC, USA. .,Duke Molecular Physiology Institute, Duke University, 300 N. Duke Street, DUMC, Box 104775, Durham, NC, 27701, USA.
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29
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Asemota O, Thornton K, Merhi Z, Berger DS, Williams L, Seki Y, Du XQ, Jindal S, Charron MJ, Buyuk E. Monocyte chemotactic protein-1 plays a role in ovarian dysfunction related to high-fat diet-induced obesity. Syst Biol Reprod Med 2020; 66:236-243. [PMID: 32603611 DOI: 10.1080/19396368.2020.1780649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Obesity, known to cause a systemic elevation in monocyte chemotactic protein-1 (MCP-1), adversely affects normal ovarian function. The aim of this study was to determine whether MCP-1 plays a role in ovarian dysfunction that is related to obesity induced by high-fat (HF) diet intake. Wild type (WT) C57BL/6J mice were fed either normal chow (NC) (Group 1, control group) or HF diet (Group 2). To assess whether MCP-1 is involved in HF-diet-induced ovarian dysfunction, MCP-1 knock-out mice were fed HF diet (Group 3). Body weight, body fat composition, number of oocytes collected following ovarian superovulation with gonadotropins, ovarian macrophage markers and expression of genes important in folliculogenesis and steroidogenesis were quantified in the 3 groups of animals. Animals in Group 2 gained significant body weight and body mass, produced the fewest number of oocytes following superovulation, and had significant alterations in ovarian genes involved in folliculogenesis and steroidogenesis as well as genes involved in inflammation. Although animals in Group 3 had the highest body weight and body fat composition, they produced similar number of oocytes compared to animals in Group 1 but had different ovarian gene expression compared to Group 2. These findings suggest that MCP-1 gene knockout could reverse some of the adverse effects of obesity induced by HF diet intake. Future studies assessing ovarian histology in MCP-1 knock out mouse model will confirm our findings. MCP-1 inhibition could represent a future therapeutic target to protect ovarian health from the adverse effects of HF diet ingestion.
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Affiliation(s)
- Obehi Asemota
- Montefiore's Institute for Reproductive Medicine and Health, Albert Einstein College of Medicine , Hartsdale, NY, USA.,Albert Einstein College of Medicine , Bronx, NY, USA.,Currently at Aspire Fertility , Atlanta, GA, USA
| | - Kimberley Thornton
- Montefiore's Institute for Reproductive Medicine and Health, Albert Einstein College of Medicine , Hartsdale, NY, USA.,Albert Einstein College of Medicine , Bronx, NY, USA.,Icahn School of Medicine at Mount Sinai , New York, NY, USA
| | - Zaher Merhi
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, SUNY Downstate University , Brooklyn, NY, USA.,Department of Biochemistry, Albert Einstein College of Medicine , Bronx, NY, USA
| | - Dara S Berger
- Montefiore's Institute for Reproductive Medicine and Health, Albert Einstein College of Medicine , Hartsdale, NY, USA.,Albert Einstein College of Medicine , Bronx, NY, USA.,Currently at Department of Obstetrics and Gynecology, University of Pennsylvania , Philadelphia, PA, USA
| | - Lyda Williams
- Department of Biochemistry, Albert Einstein College of Medicine , Bronx, NY, USA.,Biology Department, Currently at the Lehman College , Bronx, NY, USA
| | - Yoshinori Seki
- Department of Biochemistry, Albert Einstein College of Medicine , Bronx, NY, USA
| | - Xiu Quan Du
- Department of Biochemistry, Albert Einstein College of Medicine , Bronx, NY, USA
| | - Sangita Jindal
- Montefiore's Institute for Reproductive Medicine and Health, Albert Einstein College of Medicine , Hartsdale, NY, USA.,Albert Einstein College of Medicine , Bronx, NY, USA
| | - Maureen J Charron
- Albert Einstein College of Medicine , Bronx, NY, USA.,Department of Biochemistry, Albert Einstein College of Medicine , Bronx, NY, USA.,Department of Medicine, Division of Endocrinology, Albert Einstein College of Medicine , Bronx, NY, USA
| | - Erkan Buyuk
- Montefiore's Institute for Reproductive Medicine and Health, Albert Einstein College of Medicine , Hartsdale, NY, USA.,Albert Einstein College of Medicine , Bronx, NY, USA.,Icahn School of Medicine at Mount Sinai , New York, NY, USA
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30
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Annesi JJ. Contrasting Personal Characteristics and Psychosocial Correlates of Exercise and Eating Behavior Changes in Women Successful vs. Unsuccessful with Weight Loss and Maintenance. Appl Psychol Health Well Being 2020; 12:703-723. [PMID: 32421909 DOI: 10.1111/aphw.12203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/03/2020] [Accepted: 04/17/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is great variability in individuals' responses to behavioral weight-loss treatments. Beyond attaining meaningful weight loss in the initial several weeks, little is known of the characteristics of participants successful vs. unsuccessful with short- and long-term weight loss. METHODS Separate samples of women with obesity enrolled in cognitive-behavioral weight-loss treatments were assessed over 6 months (Study 1: successful weight-loss group, n = 83; unsuccessful group, n = 158), and over 24 months (Study 2: sustained initially lost weight, n = 25; regained weight, n = 19), on personal characteristics and theory-driven psychosocial variables. RESULTS In Study 1, significantly older age and greater eating self-regulation at baseline were found in the successful group. Significantly greater improvements in exercise- and eating-related self-regulation, mood, exercise- and eating-related self-efficacy, physical self-concept, and body satisfaction were found in the successful group. In Study 2, the sustainer group had significantly more favorable changes over 2 years in exercise- and eating-related self-regulation, and mood. During Months 6-24, the psychosocial correlates of both exercise and eating behaviors regressed, with more pronounced reversions in the regainer group. CONCLUSION Increasing the magnitude of treatment-associated improvement in each of the tested theory-based psychosocial factors is warranted to increase probabilities for success with attaining and maintaining meaningful weight loss.
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Affiliation(s)
- James J Annesi
- YMCA of Metro Atlanta, Atlanta, GA, USA.,University of Alabama at Birmingham, Birmingham, AL, USA
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31
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Romanelli RJ, Sudat S, Huang Q, Pressman AR, Azar K. Early Weight Loss and Treatment Response: Data From a Lifestyle Change Program in Clinical Practice. Am J Prev Med 2020; 58:427-435. [PMID: 31870590 PMCID: PMC7039735 DOI: 10.1016/j.amepre.2019.09.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 09/12/2019] [Accepted: 09/13/2019] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The purpose of this study was to develop and validate a predictive model for the early identification of nonresponders to a 12-month lifestyle change program in clinical practice. METHODS Investigators identified lifestyle change program participants in the electronic health records of a large healthcare delivery system between 2010 and 2017. Nonresponse was defined as weight gain or no weight loss at 12 months from the program initiation (baseline). Logistic regression with percentage weight change at 2-12 weeks from baseline was used as an independent predictor of nonresponse. Baseline demographics and clinical characteristics were also tested as potential predictors. The authors performed ten-fold cross-validation for model assessment and examined model performance with the area under the receiver operating characteristic curve, sensitivity, specificity, and positive and negative predictive values. The analyses were conducted in 2019. RESULTS Among 947 program participants, 30% were classified as nonresponders at 12 months. The model with the best discrimination of responders from nonresponders included weight change at 12 weeks from baseline as the sole predictor (area under the receiver operating characteristic curve, 0.789). Sensitivity and positive predictive value were maximized at 0.56 (specificity and negative predictive value, 0.81 each). CONCLUSIONS In a cohort of lifestyle change program participants from clinical practice, percentage weight change at 12 weeks from baseline can serve as a single indicator of nonresponse at the completion of the 12-month program. Clinicians can easily apply this algorithm to identify and assess participants in potential need of adjunctive or alternative therapy to maximize treatment outcomes.
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Affiliation(s)
- Robert J Romanelli
- Palo Alto Medical Foundation Research Institute, Center for Health Systems Research, Sutter Health, Palo Alto, California.
| | - Sylvia Sudat
- Division of Research Development & Dissemination, Center for Health Systems Research, Sutter Health, Walnut Creek, California
| | - Qiwen Huang
- Palo Alto Medical Foundation Research Institute, Center for Health Systems Research, Sutter Health, Palo Alto, California
| | - Alice R Pressman
- Division of Research Development & Dissemination, Center for Health Systems Research, Sutter Health, Walnut Creek, California
| | - Kristen Azar
- Division of Research Development & Dissemination, Center for Health Systems Research, Sutter Health, Walnut Creek, California
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Saghafi-Asl M, Aliasgharzadeh S, Asghari-Jafarabadi M. Factors influencing weight management behavior among college students: An application of the Health Belief Model. PLoS One 2020; 15:e0228058. [PMID: 32032376 PMCID: PMC7006943 DOI: 10.1371/journal.pone.0228058] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 01/06/2020] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Overweight and obesity have become a significant public health concern in both developing and developed countries. Due to the health implications of weight-reduction behaviors, it is important to explore the factors that predict their occurrence. Therefore, the present study was performed to examine factors affecting the behavioral intention of weight management as well as assess the predictive power of the Health Belief Model (HBM) for body mass index (BMI). METHODS This cross-sectional study was conducted among 336 female students recruited from dormitories of Tabriz University of Medical Sciences, using quota sampling technique. Data were collected by a structured questionnaire in seven parts (including perceived severity, perceived susceptibility, perceived benefit, perceived barrier, cue to action, self-efficacy in dieting and physical activity, and behavioral intention of weight management), based on the HBM. Structural equation modeling (SEM) was conducted to identify the relationship between HBM constructs and behavioral intention of weight management. Linear regression model was performed to test the ability of the HBM to predict students' BMIs. RESULTS Higher level of perceived threats (sum of perceived susceptibility and severity) (β = 0.41, P<0.001), perceived benefits (β = 0.19, P = 0.009), self-efficacy in exercise (β = 0.17, P = 0.001), and self-efficacy in dieting (β = 0.16, P = 0.025) scales was significantly related to greater behavioral intention of weight management. Moreover, perceived threat mediated the relationships between perceived cue to action, perceived benefits, self-efficacy in exercise, and weight management practices. The fit indices of the SEM model seemed acceptable. The final regression model explained approximately 40% of variance in BMI (P<0.001). Additionally, perceived severity, barrier, and self-efficacy in dietary life were the significant variables to predict students' BMIs. CONCLUSIONS These findings suggest that health education programs based on the HBM needs to be integrated in preventive health programs and health interventions strategies to ensure adherence and well-being of the participants.
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Affiliation(s)
- Maryam Saghafi-Asl
- Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soghra Aliasgharzadeh
- Student Research Committee, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Thom G, Dombrowski SU, Brosnahan N, Algindan YY, Rosario Lopez-Gonzalez M, Roditi G, Lean MEJ, Malkova D. The role of appetite-related hormones, adaptive thermogenesis, perceived hunger and stress in long-term weight-loss maintenance: a mixed-methods study. Eur J Clin Nutr 2020; 74:622-632. [PMID: 32020057 DOI: 10.1038/s41430-020-0568-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND/OBJECTIVES Weight-loss maintenance is challenging, and few succeed in the long term. This study aimed to explain how appetite-related hormones, adaptive thermogenesis, perceived hunger and stress influence weight-loss maintenance. SUBJECTS/METHODS Fifteen adult women (age, 46.3 ± 9.5 years; BMI, 39.4 ± 4.3 kg/m2) participated in a 24-month intervention, which included 3-5 months total diet replacement (825-853 kcal/d). Body weight and composition (Magnetic Resonance Imaging), resting metabolic rate (indirect calorimetry), and fasting plasma concentration of leptin, ghrelin, glucagon-like peptide-1 (GLP-1), peptide YY (PYY), and growth differentiation factor 15 (GDF-15) were measured at baseline and after weight loss, around 6 months. Perceptions relating to weight-loss maintenance were explored using qualitative interviews. RESULTS Mean (SD) changes in body weight (-13.8 ± 6.3 kg) and total adipose tissue (-11.5 ± 4.9 kg) were significant (P < 0.001). Weight loss was associated with a significant reduction in resting metabolic rate (-291 ± 226 kcal/day, P < 0.001) and adaptive thermogenesis (-150 ± 162 kcal/day, P = 0.003), reduction in leptin (P < 0.001) and GLP-1 (P = 0.015), an increase in ghrelin (P < 0.001), and no changes in PYY and GDF-15. Weight regain between 6 and 24 months (6.1 ± 6.3 kg, P < 0.05) was negatively correlated with GLP-1 at baseline (r = −0.7, P = 0.003) and after weight loss (r = -0.7, P = 0.005). Participants did not report increased hunger after weight loss, and stress-related/emotional eating was perceived as the main reason for regain. CONCLUSIONS Weight regain is more likely with lower fasting GLP-1 at baseline and following weight loss, but psychological aspects of eating behaviour appear as important in attenuating weight-loss maintenance.
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Affiliation(s)
- George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | | | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Yasmin Y Algindan
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | - Giles Roditi
- Department of Radiology, Glasgow Royal Infirmary, Glasgow, UK
| | - Michael E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Dalia Malkova
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK.
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Abstract
The U.S. Preventive Services Task Force has recommended that primary care clinicians screen all adults for obesity and provide those affected intensive multicomponent behavioral interventions. Approximately 95 million U.S. adults qualify for such care, also referred to as lifestyle modification. Using the Guidelines (2013) for Managing Overweight and Obesity in Adults (hereafter, Obesity Guidelines) as a framework, this article reviews the principal components of comprehensive lifestyle modification, which include diet, physical activity, and behavior therapy. To lose weight, the Obesity Guidelines recommend participation for 6 months in high-intensity programs that provide 14 or more counseling sessions with a trained interventionist. When provided face-to-face individual or group treatment, participants lose up to 8 kg (8% of weight) in 6 months and experience improvements in cardiovascular disease risk factors and quality of life. To prevent weight regain, the Obesity Guidelines recommend participation for 1 year in weight-loss-maintenance programs that provide at least monthly counseling. High levels of physical activity, frequent monitoring of body weight, and consumption of a reduced-calorie diet are associated with long-term weight loss. Investigators currently are seeking to increase the availability of lifestyle modification by delivering it in community-based programs, as well as on digital platforms (e.g., Internet and Smartphone). Digitally delivered programs lower costs and expand treatment reach; their efficacy is likely to improve further with the addition of new technologies for monitoring food intake, activity, and weight. Ultimately, to improve long-term weight management, individual lifestyle counseling must be joined with collective and institutional efforts to improve the nation's eating and activity environments. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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Affiliation(s)
- Thomas A Wadden
- Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania
| | - Jena S Tronieri
- Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania
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Benson L, Zhang F, Espel-Huynh H, Wilkinson L, Lowe MR. Weight variability during self-monitored weight loss predicts future weight loss outcome. Int J Obes (Lond) 2020; 44:1360-1367. [PMID: 31949298 DOI: 10.1038/s41366-020-0534-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 12/17/2019] [Accepted: 01/07/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND Obesity treatments often do not produce long-term results. It is therefore critical to better understand biological and behavioral correlates or predictors of future weight change. OBJECTIVE We tested the hypothesis that greater weight variability, independent of total body weight change, during early weight loss would predict degree of long-term success. SUBJECTS/METHODS We included 24,009 American users of the Withings smart scale with over a year's worth of self-monitored weight data. Multilevel modeling was used to calculate weight variability as the root mean square error around participants' weight trajectory regression line, using weekly average weights from the first 12 weeks of weight loss. Linear regressions were then used to examine whether weight variability predicted weight change from week 12 to week 48, 72, and 96. RESULTS Greater weight variability predicted less weight loss/more weight regain at week 48 (b ± SE: 1.18 ± 0.17, p < 0.001), week 72 (b ± SE: 1.45 ± 0.21, p < 0.001), and week 96 (b ± SE: 1.45 ± 0.23, p < 0.001), controlling for baseline BMI and overall weight change during the first 12 weeks. An interaction effect was found between weight variability and baseline BMI such that the relationship between weight variability and later weight change was stronger in individuals with lower baseline BMI. CONCLUSIONS This study found that in a large population sample, weight variability early on during weight loss significantly predicted longer term weight loss outcomes. The results provide further support that weight variability be considered an important predictor of future weight change. Research is needed to understand the mechanisms underlying this effect.
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Affiliation(s)
- Leora Benson
- Department of Psychology, Drexel University, Philadelphia, PA, USA.
| | - Fengqing Zhang
- Department of Psychology, Drexel University, Philadelphia, PA, USA
| | | | - Lua Wilkinson
- Novo Nordisk Inc., 800 Scudders Mill Road, Plainsboro, NJ, 08536, USA
| | - Michael R Lowe
- Department of Psychology, Drexel University, Philadelphia, PA, USA
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Fielding-Singh P, Patel ML, King AC, Gardner CD. Baseline Psychosocial and Demographic Factors Associated with Study Attrition and 12-Month Weight Gain in the DIETFITS Trial. Obesity (Silver Spring) 2019; 27:1997-2004. [PMID: 31633313 PMCID: PMC6868338 DOI: 10.1002/oby.22650] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 08/26/2019] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The purpose of this study was to examine correlates of failure-trial attrition and weight gain-in a randomized clinical weight-loss trial. METHODS The Diet Intervention Examining The Factors Interacting with Treatment Success (DIETFITS) trial included 609 adults (18-50 years; BMI 28-40). Participants were randomized to a 12-month healthy low-fat or healthy low-carbohydrate diet for weight loss. At baseline, participants completed psychosocial, demographic, and anthropometric measures. Stepwise logistic regressions identified baseline factors associated with (1) study attrition and (2) among trial completers, weight gain at 12 months. RESULTS Having higher baseline food addiction and self-efficacy was linked to treatment failure. Being younger, not having a college education, having higher outcome expectations and quality of life, and having lower social functioning and self-control increased the odds of trial attrition. Identifying as other than non-Hispanic white; not being married or cohabitating; having higher cognitive restraint and self-control; and having lower amotivation, family encouragement, and physical limitations increased the odds of gaining weight by treatment's end. CONCLUSIONS Participants' baseline psychosocial and demographic factors may support or impede successful weight loss. Trialists should attend to these factors when designing treatments in order to promote participants' likelihood of completing the trial and achieving their weight-loss goals.
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Affiliation(s)
- Priya Fielding-Singh
- Stanford Prevention Research Center, Department of Medicine, Stanford University School of Medicine, Stanford, California, United States
| | - Michele L. Patel
- Stanford Prevention Research Center, Department of Medicine, Stanford University School of Medicine, Stanford, California, United States
| | - Abby C. King
- Stanford Prevention Research Center, Department of Medicine, Stanford University School of Medicine, Stanford, California, United States
- Department of Health Research & Policy, Stanford University School of Medicine, Stanford, California, United States
| | - Christopher D. Gardner
- Stanford Prevention Research Center, Department of Medicine, Stanford University School of Medicine, Stanford, California, United States
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Natvik E, Råheim M, Andersen JR, Moltu C. An Experientially Derived Model of Flexible and Intentional Actions for Weight Loss Maintenance After Severe Obesity. Front Psychol 2019; 10:2503. [PMID: 31798491 PMCID: PMC6863797 DOI: 10.3389/fpsyg.2019.02503] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 10/22/2019] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Knowledge about non-surgical weight loss (WL) is scarce among people with severe obesity (SO). Lifestyle changes are primarily self-driven, occasionally accompanied by professional guidance and weight-management support. Weight regain and intervention discontinuation are common challenges among guidance and support programmes. In the current study, we describe a model of meaningful strategies for maintaining WL after SO based on the experiences of successful cases. METHODS Aiming to investigate the experiences of WL and weight loss maintenance (WLM) (≥5 years) following SO, we designed a qualitative study. Ten adults of Norwegian ethnicity, eight women and two men aged from 27 to 59, participated in individual in-depth interviews. We recruited participants living in rural districts and cities across all four regions of Norway. The interviews concentrated on participants' experiences of losing weight and maintaining a lower weight over the long term. The transcripts were analysed with a rigorous method for thematic cross-case analysis, namely, systematic text condensation (STC). RESULTS Participants identified four experiential themes at the core of long-term WLM: (a) Owning the decision, (b) Creating self-reinforcement, (c) Sustaining a lifestyle-forming identity, and (d) Selecting support appropriate to one's own situation. These core themes represent the intentional level, functioning both as the foundation of and the momentum for sustaining WL. On the behavioural level, participants continued to take action for change, obtain results, record and reflect on their efforts and milestones, observe what worked and felt good, and receive recognition from others, thereby realising changes. CONCLUSION Based on these results, we propose a model of WLM after SO, suggesting that practices toward WLM on the behavioural level achieve meaning and sustainability through their relationship with a core intentional level found across participants' experiences. One implication is that the relationship between the intentional and behavioural levels might be more meaningful when discussing long-term WLM than the behaviours themselves.
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Affiliation(s)
- Eli Natvik
- Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Førde, Norway
- The Centre for Health Research, District General Hospital of Førde, Førde, Norway
| | - Målfrid Råheim
- Department of Global Health and Primary Care, University of Bergen, Bergen, Norway
| | - John Roger Andersen
- Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Førde, Norway
- The Centre for Health Research, District General Hospital of Førde, Førde, Norway
| | - Christian Moltu
- Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Førde, Norway
- Division of Psychiatry, District General Hospital of Førde, Førde, Norway
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Evans EH, Sainsbury K, Marques MM, Santos I, Pedersen S, Lähteenmäki L, Teixeira PJ, Stubbs RJ, Heitmann BL, Sniehotta FF. Prevalence and predictors of weight loss maintenance: a retrospective population-based survey of European adults with overweight and obesity. J Hum Nutr Diet 2019; 32:745-753. [PMID: 31411771 DOI: 10.1111/jhn.12666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND The prevalence of weight loss attempts has increased worldwide, although the extent to which sustained weight loss is achieved is unknown. There is insufficient research into weight loss maintenance (WLM) in individuals with overweight or obesity who have recently lost clinically significant amounts of weight (≥5%), particularly in the European general population. The present study aimed to determine the prevalence and retrospective predictors of WLM in population-based samples of European adults with overweight or obesity who had made a recently completed weight loss attempt. METHODS Participants (N = 2000) in UK, Denmark and Portugal completed an online survey about loss and regain in their most recent completed weight loss attempt, features of their attempt (duration, self-weighing, lapses, strategies), as well as loss of control and binge eating. Multiple regression analysis was used to determine factors retrospectively associated with WLM in those who achieved clinically significant weight loss (n = 1272). RESULTS Mean (SD) self-reported weight loss was 9% (8%) and mean (SD) regain was 96.3% (9%) of participants' start weight. Twenty-three percent of the total sample had maintained weight loss of ≥5% for at least 1 month. Controlling for weight loss and time since attempt, predictors of better WLM were avoidance of a temporary lapse, infrequent/absent loss of control and binge eating, and use of a greater number of dietary strategies for WLM (r2 = 0.338, P < 0.001). PRINCIPAL CONCLUSIONS Factors associated with recent successful WLM indicate the importance of the continued use of dietary and other strategies for WLM, particularly in the face of a lapse, as well as the need to manage dysfunctional eating behaviours.
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Affiliation(s)
- E H Evans
- School of Psychology, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - K Sainsbury
- Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - M M Marques
- Interdisciplinary Centre for the Study of Human Performance (CIPER), Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal.,ADAPT Centre & Trinity Centre for Practice and Healthcare Innovation, Trinity College Dublin, Dublin, Ireland
| | - I Santos
- Interdisciplinary Centre for the Study of Human Performance (CIPER), Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | - S Pedersen
- MAPP Centre, Aarhus BSS, Aarhus University, Aarhus, Denmark
| | - L Lähteenmäki
- MAPP Centre, Aarhus BSS, Aarhus University, Aarhus, Denmark
| | - P J Teixeira
- Interdisciplinary Centre for the Study of Human Performance (CIPER), Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | - R J Stubbs
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, UK
| | - B L Heitmann
- Research Unit for Dietary Studies at the Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark.,The Boden Institute of Obesity, Nutrition Exercise & Eating Disorders, University of Sydney, Sydney, NSW, Australia.,The Department of General Medicine, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - F F Sniehotta
- Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Fuse, The UKCRC Centre for Translational Research in Public Health, Newcastle, UK
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Ogden J, Maxwell H, Wong A. Development and feasibility study of an app (Ladle) for weight loss and behaviour change. PeerJ 2019; 7:e6907. [PMID: 31143540 PMCID: PMC6525583 DOI: 10.7717/peerj.6907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 04/04/2019] [Indexed: 12/26/2022] Open
Abstract
Background Weight management interventions involving behaviour change often utilise face to face interventions which include evidence based behaviour change strategies yet are costly and time intensive. In contrast, digital interventions cost less and have a wider reach yet tend to lack an evidence base and are less effective. Aims The present study therefore aimed to develop an evidence based behaviour change low cost app for weight management and to provide a preliminary analysis of its effectiveness. Methods The Ladle app was developed through evidence review and feedback from health care professionals and patients and consists of a 12 week course focusing on six habits and weight loss facilitated through 36 audio psychological lessons and 12 lessons specifically on the six habits. Each lesson was between 2-5 min (approx. 168 min of lessons). It was evaluated in terms of completion rate, weight loss, adoption of the six habits and participant feedback. Results The results showed a completion rate of 44%, that 52% of Completers showed weight loss of at least 5%, 79% showed weight loss of at least 3%, the median % weight lost was -5% and the median weight loss was -3.8 kg. Further, by the end of 12 weeks the majority (>80%) of participants had adopted four of the six habits for at least 5 days a week and nearly half (45%) had adopted the remaining two habits for at least 4 days out of 7. Feedback comments were mainly positive (n = 80) focusing mostly on the content of the lessons. Some comments were neutral (n = 56) and involved a statement of commitment or a description of a challenge and a minority were negative (n = 23) describing some technical issues which were addressed as the evaluation progressed. Conclusion The new Ladle app offers an evidenced based alternative to more intensive face to face interventions. On preliminary analysis it would seem to have lower completion rates than some more intensive interventions but comparable effectiveness for weight loss. It can also improve habits and is less time-intensive and costly to deliver. Participant feedback was generally positive.
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Affiliation(s)
- Jane Ogden
- School of Psychology, University of Surrey, Guildford, Surrey, United Kingdom
| | - Hazel Maxwell
- Fittle App Limited (trading as Ladle), London, United Kingdom
| | - Adrian Wong
- Fittle App Limited (trading as Ladle), London, United Kingdom
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Desalermos A, Russell B, Leggett C, Parnell A, Ober K, Hagerich K, Gerlan C, Ganji G, Lee E, Proudfoot JA, Grunvald E, Gupta S, Ho SB, Zarrinpar A. Effect of Obesogenic Medications on Weight-Loss Outcomes in a Behavioral Weight-Management Program. Obesity (Silver Spring) 2019; 27:716-723. [PMID: 31012292 PMCID: PMC6544176 DOI: 10.1002/oby.22444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 01/17/2019] [Indexed: 01/06/2023]
Abstract
OBJECTIVE This study aimed to evaluate a possible association between the use of obesogenic medications and inadequate weight loss in a behavioral weight-management program. METHODS This is a case-control, single-center study of 666 adult patients within a Veterans Health Administration health system who participated in the MOVE! behavioral weight-loss program. The cohort was divided into responders (n = 150), patients who achieved ≥ 5% total weight loss by the end of the MOVE! program, and nonresponders (n = 516), those who achieved < 5% total weight loss. We reviewed each patient's medical records for exposure to obesogenic medication during the time of treatment. RESULTS Approximately 62% (n = 411) of patients entering MOVE! had a prescription for obesogenic medications. Obesogenic medication use was associated with worse weight-loss outcomes, and participants were 37% less likely to achieve a clinically meaningful (≥ 5% total weight loss) outcome at the end of the MOVE! program (odds ratio, 0.633; 95% CI: 0.427-0.937; adjusted P = 0.022). Patients who received three or more medications (n = 72) had the greatest difficulty achieving 5% weight loss compared with the control group (odds ratio, 0.265; 95% CI: 0.108-0.646; adjusted P = 0.003). CONCLUSIONS The use of provider-prescribed obesogenic medications was associated with worse weight-loss outcomes in a behavioral weight-loss program. Closer scrutiny of patient medications is necessary to help improve outcomes of weight-loss treatments.
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Affiliation(s)
- Athanasios Desalermos
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
- Division of Gastroenterology. University of California, San Diego, La Jolla, California, USA
- School of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Baylee Russell
- Division of Gastroenterology. University of California, San Diego, La Jolla, California, USA
- School of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Cecilia Leggett
- School of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Amelia Parnell
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
| | - Kathleen Ober
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
| | - Kelley Hagerich
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
| | - Cindy Gerlan
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
| | - Gelareh Ganji
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
| | - Euyhyun Lee
- Clinical and Translational Research Institute, University of California, San Diego, La Jolla, California, USA
| | - James A. Proudfoot
- Clinical and Translational Research Institute, University of California, San Diego, La Jolla, California, USA
| | - Eduardo Grunvald
- School of Medicine, University of California, San Diego, La Jolla, California, USA
- Bariatric and Metabolic Institute, University of California, San Diego, La Jolla, California, USA
- Division of General Internal Medicine, University of California, San Diego, La Jolla, California, USA
- Institute of Diabetes and Metabolic Health, University of California, San Diego, La Jolla, California, USA
| | - Samir Gupta
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
- Division of Gastroenterology. University of California, San Diego, La Jolla, California, USA
- School of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Samuel B. Ho
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
- Division of Gastroenterology. University of California, San Diego, La Jolla, California, USA
- School of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Amir Zarrinpar
- Veterans Affairs San Diego Healthcare System, San Diego, California, USA
- Division of Gastroenterology. University of California, San Diego, La Jolla, California, USA
- School of Medicine, University of California, San Diego, La Jolla, California, USA
- Clinical and Translational Research Institute, University of California, San Diego, La Jolla, California, USA
- Institute of Diabetes and Metabolic Health, University of California, San Diego, La Jolla, California, USA
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Hansen S, Huttunen-Lenz M, Sluik D, Brand-Miller J, Drummen M, Fogelholm M, Handjieva-Darlenska T, Macdonald I, Martinez AJ, Larsen TM, Poppitt S, Raben A, Schlicht W. Demographic and Social-Cognitive Factors Associated with Weight Loss in Overweight, Pre-diabetic Participants of the PREVIEW Study. Int J Behav Med 2018; 25:682-92. [PMID: 30128932 DOI: 10.1007/s12529-018-9744-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Purpose Weight loss has been demonstrated to be a successful strategy in diabetes prevention. Although weight loss is greatly influenced by dietary behaviors, social-cognitive factors play an important role in behavioral determination. This study aimed to identify demographic and social-cognitive factors (intention, self-efficacy, outcome expectancies, social support, and motivation with regard to dietary behavior and goal adjustment) associated with weight loss in overweight and obese participants from the PREVIEW study who had pre-diabetes. Method Prospective correlational data from 1973 adult participants were analyzed. The participants completed psychological questionnaires that assessed social-cognitive variables with regard to dietary behavior. Stepwise multiple regression analyses were performed to identify baseline demographic and social-cognitive factors associated with weight loss. Results Overall, being male, having a higher baseline BMI, having a higher income, perceiving fewer disadvantages of a healthy diet (outcome expectancies), experiencing less discouragement for healthy eating by family and friends (social support), and lower education were independently linked to greater weight loss. When evaluating females and males separately, education was no longer associated with weight loss. Conclusion The results indicate that a supportive environment in which family members and friends avoid discouraging healthy eating, with the application of a strategy that uses specific behavior change techniques to emphasize the benefits of outcomes, i.e., the benefits of a healthy diet, may support weight loss efforts. Weight loss programs should therefore always address the social environment of persons who try to lose body weight because family members and friends can be important supporters in reaching a weight loss goal.
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Abstract
PURPOSE Losing weight and keeping it off for the long term is difficult. Weight regain is common. Experiences of successful non-surgical weight loss after severe obesity are largely unexplored. We know little about long-term weight loss processes, and how health care services can be of help to those living them. METHODS Drawing on in-depth interviews of 8 women and 2 men, the aim of this phenomenological study is to describe the experiences of adults who have been severely obese, who have lost weight and maintained weight loss for the long term (>5 years). RESULTS Findings show that after severe obesity, sustained weight loss has no endpoint, yet is always easy to end. Keeping weight off means committing to oneself, continuing profound changes and cultivating sensitivity towards oneself and others. A phenomenological understanding of sustained weight loss can inform professionals who deal with health issues and challenges occurring in the life of people leaving severe obesity.
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Affiliation(s)
- Eli Natvik
- Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Førde, Norway
- Center for Health Research, District General Hospital of Førde, Førde, Norway
| | - Målfrid Råheim
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - John Roger Andersen
- Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Førde, Norway
- Center for Health Research, District General Hospital of Førde, Førde, Norway
| | - Christian Moltu
- Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Førde, Norway
- Division of Psychiatry, District General Hospital of Førde, Førde, Norway
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Hilbert A, Blume M, Petroff D, Neuhaus P, Smith E, Hay PJ, Hübner C. Group cognitive remediation therapy for adults with obesity prior to behavioural weight loss treatment: study protocol for a randomised controlled superiority study (CRT study). BMJ Open 2018; 8:e022616. [PMID: 30224391 PMCID: PMC6144388 DOI: 10.1136/bmjopen-2018-022616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 06/01/2018] [Accepted: 06/29/2018] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Individuals with obesity show deficits in executive functioning which have been implicated in decreased weight loss outcome. Preliminary evidence suggests that cognitive remediation therapy (CRT) improves executive functioning and weight loss in obesity. However, confirmatory support, especially for pre-weight loss use, is lacking. The CRT study aims at determining the efficacy of CRT versus no treatment control in patients with obesity before entering behavioural weight loss (BWL) treatment. It is hypothesised that individuals who receive CRT will show better weight loss outcome, improved executive functioning, greater weight loss-related behavioural changes and higher attendance of BWL treatment, 6 and 12 months after cessation of CRT. METHODS AND ANALYSIS In a single-centre, assessor-blinded, randomised, two-armed parallel-group superiority trial, 260 adults with body mass index ≥35.0 kg/m2 are centrally randomised to 8-week group-based CRT versus no treatment, before entering BWL treatment. Primary outcome is the amount of weight loss (%) at 6-month follow-up, compared with pre-treatment, derived from measured body weight. Secondary outcomes include improvement in executive functioning post-treatment and in weight loss-related behaviour, mental and physical health, and attendance to BWL treatment at 6-month and 12-month follow-up. Maintenance of weight loss at 12-month follow-up will be determined. Mixed model analyses based on intent-to-treat will be used to compare the CRT and control groups with respect to differences in weight change between pre-treatment and 6-month follow-up. Similar models will be used for analysing 12-month follow-up data and secondary outcomes. Further analyses will include additional covariates to identify predictors of treatment outcome. ETHICS AND DISSEMINATION The study was approved by the Ethical Committee of the University of Leipzig (256-15-13072015, version 'Final 1.0 from 28 May 2015). The study results will be disseminated through peer-reviewed publications. TRIAL REGISTRATION NUMBER DRKS00009333; Pre-results.
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Affiliation(s)
- Anja Hilbert
- Integrated Research and Treatment Centre AdiposityDiseases, Department of Medical Psychology and Medical Sociology, Department of Psychosomatic Medicine and Psychotherapy, University of Leipzig Medical Center, Leipzig, Germany
| | - Marie Blume
- Integrated Research and Treatment Centre AdiposityDiseases, Department of Medical Psychology and Medical Sociology, Department of Psychosomatic Medicine and Psychotherapy, University of Leipzig Medical Center, Leipzig, Germany
| | - David Petroff
- Integrated Research and Treatment Centre AdiposityDiseases, Department of Medical Psychology and Medical Sociology, Department of Psychosomatic Medicine and Psychotherapy, University of Leipzig Medical Center, Leipzig, Germany
- Clinical Trial Centre Leipzig, University of Leipzig, Leipzig, Germany
| | - Petra Neuhaus
- Clinical Trial Centre Leipzig, University of Leipzig, Leipzig, Germany
| | - Evelyn Smith
- School of Social Sciences and Psychology, Western Sydney University, Sydney, New South Wales, Australia
- Translational Health Research Institute, Western Sydney University, Sydney, New South Wales, Australia
| | - Phillipa J Hay
- Translational Health Research Institute, Western Sydney University, Sydney, New South Wales, Australia
| | - Claudia Hübner
- Integrated Research and Treatment Centre AdiposityDiseases, Department of Medical Psychology and Medical Sociology, Department of Psychosomatic Medicine and Psychotherapy, University of Leipzig Medical Center, Leipzig, Germany
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Hartmann-Boyce J, Aveyard P, Piernas C, Koshiaris C, Velardo C, Salvi D, Jebb SA. Cognitive and behavioural strategies for weight management in overweight adults: Results from the Oxford Food and Activity Behaviours (OxFAB) cohort study. PLoS One 2018; 13:e0202072. [PMID: 30096203 PMCID: PMC6086460 DOI: 10.1371/journal.pone.0202072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 07/29/2018] [Indexed: 11/29/2022] Open
Abstract
Background Though many overweight and obese adults attempt to lose weight without formal support, little is known about the strategies used in self-directed weight loss attempts. We set out to assess cognitive and behavioural strategies for weight loss and their associations with weight change. Methods Prospective, web-based cohort study of overweight UK adults (BMI≥25kg/m2) trying to lose weight through behaviour change. Strategy use was assessed using the OxFAB questionnaire and evaluated (1) at the domain level, (2) through exploratory factor analysis, and (3) in a model of strategies deemed a priori to be “essential” to weight management. Associations with weight change at 3 months were tested using linear regression. Results 486 participants answered all questions; 194 reported weight at baseline and at 3 months (mean weight change -3.3kg (SD 4.1)). Greater weight loss was significantly associated with the motivational support domain (-2.4kg, 95% CI -4.4 to -0.4), dietary impulse control (from factor analysis) (-0.6kg, 95% CI -1.1 to -0.03), and weight loss planning and monitoring (from factor analysis) (-1.3kg, 95% CI -2.0 to -0.5). Higher scores in the model of essential behavioural strategies were significantly associated with greater weight loss (compared to participants using 6 or fewer of the 9 strategies, using 7 or more of the 9 strategies was associated with a 2.13kg greater weight loss (SE 0.58, p<0.001)). Conclusions Despite heterogeneity in the strategies employed for weight loss, coherent patterns of behaviours emerged for individual participants, some of which were associated with greater weight loss, including strategies relating to dietary impulse control, weight loss planning and monitoring, motivational support, information seeking and self-monitoring. Trials could test the effect of promoting use of these patterns on weight loss.
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Affiliation(s)
- Jamie Hartmann-Boyce
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom
- * E-mail:
| | - Paul Aveyard
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom
| | - Carmen Piernas
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom
| | - Constantinos Koshiaris
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom
| | - Carmelo Velardo
- Institute of Biomedical Engineering, Department of Engineering Sciences, Old Road Campus Research Building, University of Oxford, Headington, Oxford, United Kingdom
| | - Dario Salvi
- Institute of Biomedical Engineering, Department of Engineering Sciences, Old Road Campus Research Building, University of Oxford, Headington, Oxford, United Kingdom
| | - Susan A. Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom
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Olson KL, Neiberg RH, Tate DF, Garcia KR, Gorin AA, Lewis CE, Unick J, Wing RR. Weight and Shape Concern Impacts Weight Gain Prevention in the SNAP Trial: Implications for Tailoring Intervention Delivery. Obesity (Silver Spring) 2018; 26:1270-1276. [PMID: 29956495 PMCID: PMC6437682 DOI: 10.1002/oby.22212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 04/20/2018] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The Study of Novel Approaches to Weight Gain Prevention (SNAP) trial demonstrated that two self-regulatory interventions prevented weight gain in young adults. Weight and shape concern (WSC) at baseline was evaluated as a moderator of weight outcomes at 24 months. METHODS Young adults (n = 599) were randomized to self-regulation with small changes (to create 200 kcal/day deficit), self-regulation with large changes (to facilitate preemptive weight loss of 5-10 lb), or self-guided control. WSC was assessed by using one item from the Eating Disorders Assessment. ANOVA was used to examine whether the association between baseline level of WSC and percent weight change over 24 months differed across treatment conditions. RESULTS Approximately 22% of participants reported high WSC (37% moderate; 41% low). WSC and treatment condition interacted to influence weight change at 24 months (P = 0.03). Individuals with high WSC gained weight in the large changes group (WSC least squares means ± SE, high: + 0.73% ± 1.19%; moderate: -2.74% ± 0.84%; low: -2.41% ± 0.79%). The small changes condition was particularly effective for those with high WSC (high WSC: -2.49% ± 1.16%; moderate: -0.60% ± 0.88%; low: -0.71% ± 0.80%). WSC did not impact weight change among control participants. CONCLUSIONS Individuals with high WSC may benefit from a small-changes approach to weight gain prevention. These findings indicate WSC may be used to match individuals to weight gain prevention treatment conditions.
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Affiliation(s)
- KayLoni L. Olson
- Alpert Medical School of Brown University, The Miriam Hospital, Providence RI
| | - Rebecca H. Neiberg
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem NC
| | | | - Katelyn R. Garcia
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem NC
| | - Amy A. Gorin
- Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, Storrs CT
| | - Cora E. Lewis
- Division of Preventive Medicine, University of Alabama at Birmingham, Birmingham AL
| | - Jessica Unick
- Alpert Medical School of Brown University, The Miriam Hospital, Providence RI
| | - Rena R. Wing
- Alpert Medical School of Brown University, The Miriam Hospital, Providence RI
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Albert Pérez E, Mateu Olivares V, Martínez-Espinosa RM, Molina Vila MD, Reig García-Galbis M. New Insights about How to Make an Intervention in Children and Adolescents with Metabolic Syndrome: Diet, Exercise vs. Changes in Body Composition. A Systematic Review of RCT. Nutrients 2018; 10:E878. [PMID: 29986479 PMCID: PMC6073719 DOI: 10.3390/nu10070878] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/22/2018] [Accepted: 07/02/2018] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE To record which interventions produce the greatest variations in body composition in patients ≤19 years old with metabolic syndrome (MS). METHOD search dates between 2005 and 2017 in peer reviewed journals, following the PRISMA method (Preferred Reporting Items for Systematic reviews and Meta-Analyses). The selection criteria were: diagnostic for MS or at least a criterion for diagnosis; randomized clinical trials, ≤19 years of age; intervention programs that use diet and/or exercise as a tool (interventions showing an interest in body composition). RESULTS 1781 clinical trials were identified under these criteria but only 0.51% were included. The most frequent characteristics of the selected clinical trials were that they used multidisciplinary interventions and were carried out in America. The most utilized parameters were BMI (body mass index) in kg/m² and BW (body weight) in kg. CONCLUSIONS Most of the clinical trials included had been diagnosed through at least 2 diagnostic criteria for MS. Multidisciplinary interventions obtained greater changes in body composition in patients with MS. This change was especially prevalent in the combinations of dietary interventions and physical exercise. It is proposed to follow the guidelines proposed for patients who are overweight, obese, or have diabetes type 2, and extrapolate these strategies as recommendations for future clinical trials designed for patients with MS.
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Affiliation(s)
| | | | - Rosa María Martínez-Espinosa
- Division of Biochemistry and Molecular Biology, Department of Agrochemistry and Biochemistry, Faculty of Sciences, University of Alicante, 03690 Alicante, Spain.
- Members of the Research Group of Applied Biochemistry (AppBiochem), Faculty of Sciences, University of Alicante, 03690 Alicante, Spain.
| | - Mariola D Molina Vila
- Members of the Research Group of Applied Biochemistry (AppBiochem), Faculty of Sciences, University of Alicante, 03690 Alicante, Spain.
- Department of Mathematics, Faculty of Sciences, University of Alicante, 03690 Alicante, Spain.
| | - Manuel Reig García-Galbis
- Members of the Research Group of Applied Biochemistry (AppBiochem), Faculty of Sciences, University of Alicante, 03690 Alicante, Spain.
- Department of Nutrition and Dietetics, Faculty of Health Sciences, University of Atacama, Avda Copayapu 2862, III Region, Copiapo 1530000, Chile.
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MacLean PS, Rothman AJ, Nicastro HL, Czajkowski SM, Agurs-Collins T, Rice EL, Courcoulas AP, Ryan DH, Bessesen DH, Loria CM. The Accumulating Data to Optimally Predict Obesity Treatment (ADOPT) Core Measures Project: Rationale and Approach. Obesity (Silver Spring) 2018; 26 Suppl 2:S6-S15. [PMID: 29575780 PMCID: PMC5973529 DOI: 10.1002/oby.22154] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/29/2018] [Accepted: 02/12/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Individual variability in response to multiple modalities of obesity treatment is well documented, yet our understanding of why some individuals respond while others do not is limited. The etiology of this variability is multifactorial; however, at present, we lack a comprehensive evidence base to identify which factors or combination of factors influence treatment response. OBJECTIVES This paper provides an overview and rationale of the Accumulating Data to Optimally Predict obesity Treatment (ADOPT) Core Measures Project, which aims to advance the understanding of individual variability in response to adult obesity treatment. This project provides an integrated model for how factors in the behavioral, biological, environmental, and psychosocial domains may influence obesity treatment responses and identify a core set of measures to be used consistently across adult weight-loss trials. This paper provides the foundation for four companion papers that describe the core measures in detail. SIGNIFICANCE The accumulation of data on factors across the four ADOPT domains can inform the design and delivery of effective, tailored obesity treatments. ADOPT provides a framework for how obesity researchers can collectively generate this evidence base and is a first step in an ongoing process that can be refined as the science advances.
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Affiliation(s)
- Paul S MacLean
- University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Alexander J Rothman
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Holly L Nicastro
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Susan M Czajkowski
- National Cancer Institute, National Institutes of Health, Rockville, Maryland, USA
| | - Tanya Agurs-Collins
- National Cancer Institute, National Institutes of Health, Rockville, Maryland, USA
| | - Elise L Rice
- National Cancer Institute, National Institutes of Health, Rockville, Maryland, USA
| | | | - Donna H Ryan
- Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, Louisiana, USA
| | | | - Catherine M Loria
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
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Saelens BE, Arteaga SS, Berrigan D, Ballard RM, Gorin AA, Powell-Wiley TM, Pratt C, Reedy J, Zenk SN. Accumulating Data to Optimally Predict Obesity Treatment (ADOPT) Core Measures: Environmental Domain. Obesity (Silver Spring) 2018; 26 Suppl 2:S35-S44. [PMID: 29575779 PMCID: PMC5875459 DOI: 10.1002/oby.22159] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/31/2018] [Accepted: 02/12/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND There is growing interest in how environment is related to adults' weight and activity and eating behaviors. However, little is known about whether environmental factors are related to the individual variability seen in adults' intentional weight loss or maintenance outcomes. OBJECTIVES The environmental domain subgroup of the Accumulating Data to Optimally Predict obesity Treatment (ADOPT) Core Measures Project sought to identify a parsimonious set of objective and perceived neighborhood and social environment constructs and corresponding measures to include in the assessment of response to adult weight-loss treatment. SIGNIFICANCE Starting with the home address, the environmental domain subgroup recommended for inclusion in future weight-loss or maintenance studies constructs and measures related to walkability, perceived land use mix, food outlet accessibility (perceived and objective), perceived food availability, socioeconomics, and crime-related safety (perceived and objective) to characterize the home neighborhood environment. The subgroup also recommended constructs and measures related to social norms (perceived and objective) and perceived support to characterize an individual's social environment. The 12 neighborhood and social environment constructs and corresponding measures provide a succinct and comprehensive set to allow for more systematic examination of the impact of environment on adults' weight loss and maintenance.
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Affiliation(s)
- Brian E Saelens
- Department of Pediatrics, University of Washington, Seattle Washington, USA
- Seattle Children's Research Institute, Seattle, Washington, USA
| | - S Sonia Arteaga
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - David Berrigan
- Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Rachel M Ballard
- Office of Disease Prevention, Office of the Director, National Institutes of Health, Bethesda, Maryland, USA
| | - Amy A Gorin
- Department of Psychological Sciences, Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, Storrs, Connecticut, USA
| | - Tiffany M Powell-Wiley
- Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Charlotte Pratt
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jill Reedy
- Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Shannon N Zenk
- Department of Health Systems Science, College of Nursing, University of Illinois at Chicago, Chicago, Illinois, USA
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49
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Alhalel N, Schueller SM, O'Brien MJ. Association of changes in mental health with weight loss during intensive lifestyle intervention: does the timing matter? Obes Sci Pract 2018; 4:153-158. [PMID: 29670753 PMCID: PMC5893461 DOI: 10.1002/osp4.157] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 01/08/2018] [Accepted: 01/17/2018] [Indexed: 12/31/2022] Open
Abstract
Objective This study examined changes in mental health symptoms and weight during weight loss treatment. It was hypothesized that worsening mental health would negatively impact weight loss. Methods Data were analyzed from a trial of 92 Hispanic women with overweight/obesity and prediabetes, who were randomized to receive intensive lifestyle intervention (ILI), metformin 1,700 mg daily, or standard care. Depression, anxiety and perceived stress were assessed at 0, 6 and 12 months. Six‐ and 12‐month weight change was compared among participants whose symptom scores worsened on any mental health measure (W) vs. improved or remained stable on all three (I/S). Results Among ILI participants, the 12‐month difference in weight loss between I/S and W groups was statistically significant: −5.1 kg (P = 0.001). From baseline to 6 months, ILI participants in I/S and W groups experienced comparable weight loss. However, from 6 to 12 months, W participants regained weight, whereas I/S participants experienced continued weight loss. In the metformin and standard care arms, there was no weight difference between I/S and W groups. Conclusions In ILI, 12‐month improvement or stability in mental health was significantly associated with weight loss. Weight trajectories between I/S and W groups diverged at 6 months.
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Affiliation(s)
- N Alhalel
- Northwestern University Feinberg School of Medicine Chicago IL USA
| | - S M Schueller
- Department of Preventive Medicine Northwestern University Feinberg School of Medicine Chicago IL USA.,Center for Behavioral Intervention Technologies Northwestern University Feinberg School of Medicine Chicago IL USA
| | - M J O'Brien
- Department of Preventive Medicine Northwestern University Feinberg School of Medicine Chicago IL USA.,Division of General Internal Medicine and Geriatrics Northwestern University Feinberg School of Medicine Chicago IL USA.,Center for Community Health, Institute for Public Health and Medicine Northwestern University Feinberg School of Medicine Chicago IL USA
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50
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Carson TL, Jackson BE, Nolan TS, Williams A, Baskin ML. Lower depression scores associated with greater weight loss among rural black women in a behavioral weight loss program. Transl Behav Med 2017; 7:320-9. [PMID: 27909882 DOI: 10.1007/s13142-016-0452-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Depression and stress have been associated with less weight loss among some participants in behavioral weight loss (BWL) programs. The purpose of this study was to (1) measure the levels of depression and stress among a sample of black women living in rural Alabama and Mississippi who were participating in a BWL program and (2) examine the association between these psychosocial variables and weight loss outcomes of participants at 6 months. Overweight and obese black women in a BWL program (n = 409) completed validated surveys to measure depression and stress at baseline and 6 months. Weight and height were also measured at baseline and 6 months. Statistical tests were conducted to examine associations between depression, stress, and weight loss. Mean BMI at baseline was 38.68 kg/m2. Participants achieved a 1.17 kg/m2 reduction in BMI at 6 months. When comparing by baseline depression or stress categories, no significant differences in weight loss outcomes were observed. Analysis of continuous data revealed a significant correlation between baseline depression score and change in BMI. In adjusted models, change in depression score over time was significantly associated with change in weight. No differences in weight loss outcomes at 6 months were observed when comparing participants with and without elevated depressive symptoms or elevated stress at baseline. This suggests that potential participants may not need to be excluded from BWL programs based on pre-specified cut points for these psychological conditions. Greater improvements in depression were associated with better weight loss outcomes suggesting that more emphasis on reducing depression may lead to greater weight losses for black women in BWL programs.
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