Every Day Counts: a randomized pilot lifestyle intervention for women with metastatic breast cancer

Feasibility of an exercise program in endocrine-treated metastatic breast cancer patients with overweight: protocol for the FEMA study

BACKGROUND

Many patients with metastatic breast cancer can live relatively long lives but are challenged by treatment- and cancer-related side effects such as weight gain, physical deconditioning, and reduced quality of life, possibly affecting survival. In particular, endocrine treatments are associated with an increased risk of weight gain and adverse metabolic effects. There is a need for interventions to prevent side effects among patients with disseminated breast cancer. Exercise is found to be effective in improving quality of life, metabolic health, and body composition in the curative setting, yet evidence in the metastatic setting is sparse. The aim of this study is to assess feasibility of a 12-week exercise intervention for metastatic breast cancer patients with overweight receiving endocrine therapy and to explore potential effects on metabolic health, body composition, physical performance, obesity-related biomarkers, and patient-reported outcomes.

METHODS

The FEMA study is a randomized controlled feasibility trial in which 21 endocrine-treated patients with metastatic breast cancer and overweight will be randomly assigned in a 2:1 ratio to either a 12-week training program with three weekly training sessions (intervention), or usual care (control), which includes standard clinical follow-up and supportive care without structured exercise. Feasibility will be assessed based on recruitment rate, adherence, retention, and acceptability, employing both quantitative and qualitative approaches for data collection. Participants' experiences will be explored by interviews and analyzed based on content analysis. Data are collected from blood samples, bioelectrical impedance analysis, physical performance tests, blood pressure measurements, and validated questionnaires on health-related quality of life, self-efficacy for coping with cancer, and sleep quality for explorative analyses.

DISCUSSION

The planned study will allow us to determine whether this 12-week exercise intervention is feasible in endocrine-treated metastatic breast cancer patients with overweight and explore potential effects on metabolic health, body composition, physical performance, obesity-related biomarkers, and patient-reported outcomes. Information from feasibility outcomes will inform the design of a future definitive randomized controlled trial.

TRIAL REGISTRATION

Retrospectively registered on March 6, 2024, at ClinicalTrials.gov (NCT06343987).

Assessment of the functional and health-related needs of patients with metastatic breast cancer prior to initiation of cancer treatment

PURPOSE

To identify needs of metastatic breast cancer patients prior to starting a new systemic treatment.

METHODS

Fifty patients with newly diagnosed, recurrent, or progressive metastatic breast cancer completed an electronic survey which included patient-reported outcome measures of function (PROMIS Cancer Function Brief 3D profile), quality of life (FACT-G), exercise (Godin Leisure-Time exercise questionnaire), and diet (REAP-S); demographic information; and self-reported use of or referral to specific resources at the cancer center prior to beginning a new systemic oncologic treatment.

RESULTS

Prior to starting a new treatment for metastatic breast cancer, patients reported mild functional impairment (PROMIS Cancer Function Brief 3D profile mean score:42.1) and low quality of life (FACT-G: 50%) along with low diet quality (REAP-S mean score: 29). Fifty-two percent of patients were sedentary (Godin Leisure-Time exercise questionnaire) and major barriers to exercise were pain (38%) and fatigue (34%); however, patients expressed a high level of interest (86%) in improving their ability to tolerate cancer treatment by addressing these areas.

CONCLUSION

Patients with new or recurrent metastatic breast cancer face health-related issues including sedentary behavior, poor diet, and limitations including pain and fatigue that can be addressed in prehabilitative efforts prior to starting a new oncologic treatment.

Personal and behavioural factors that influence physical activity in women living with metastatic breast cancer: a qualitative interview study

BACKGROUND

Women living with metastatic breast cancer can benefit from physical activity. Presently, there is an absence of research outside of quantitative investigations on the benefits of structured programs. To enable effective physical activity advice and services, it is important to understand factors that may facilitate or prevent engagement. We therefore explored with women with metastatic breast cancer: (i) personal and behavioural factors that influenced physical activity, and (ii) the role of healthcare services in influencing engagement in being physically active.

METHODS

Recruitment took place at a metropolitan cancer centre from November 2019 to January 2020. Women living with metastatic breast cancer were asked to participate in semi-structured interviews about physical activity, covering health-specific factors, goals, barriers, enablers, and interests. Interviews were recorded, transcribed and thematically analysed.

RESULTS

Twenty-three women completed the interview, with a median age of 60 years (IQR: 20) and median time since metastatic diagnosis of 3.3 years (IQR: 3.0). Physical activity ranged from regular participation in structured exercise to simple incidental activity. Seven themes organised into three categories were identified. The category 'personal context' incorporated themes on: (1) both cancer and non-cancer related health factors; (2) time, work and family factors; and (3) exercise history and preferences. The category 'strategies for physical activity' incorporated themes on: (4) self-efficacy, and (5) routine and incidental activity. The category 'role of health and physical activity services' incorporated themes on: (6) tailored education and services, and (7) specific metastatic cancer services and considerations.

CONCLUSIONS

Participants expressed diverse experiences with physical activity, with common notions on how physical activity is beneficial but difficult in which to adhere. Whilst some barriers to engagement in physical activity were unique to having cancer, many were not specific to metastatic breast cancer. For example, some participants emphasised specific considerations resulting from their disease, while others primarily reported on general factors such as being time-poor or having conflicting priorities. A patient-centred approach tailored to this group's health and behavioural context may be effective for women who are currently inactive to engage in physical activity.

The effects of a prescribed exercise programme in people with metastatic breast cancer: a systematic review

OBJECTIVE

To synthesise available evidence on the effects of a prescribed exercise programme in People with Metastatic Breast Cancer (PwMBC).

DATA SOURCES

Medline, Embase, CINAHL, Web of Science and Scopus were searched up to January 2024.

STUDY SELECTION

Randomised controlled trials (RCTs) recruiting PwMBC to an exercise intervention were included. The primary outcome was Quality of Life (QOL). Secondary outcomes included physical performance, muscle health, cancer-related fatigue (CRF) and physical activity (PA).

STUDY APPRAISAL AND SYNTHESIS METHODS

Meta-analysis was not possible due to the low number of included studies. We calculated the effect size (ES), with 95% confidence intervals (95% CIs) of individual studies, adjusting for small sample size. Cohen's criteria for small (0.2 to 0.5), moderate (0.5 to 0.8) and large (>0.8) describe the size of the effect. Risk of bias (ROB) was assessed using the Cochrane (ROB) version 1 tool.

RESULTS

Three RCTs (n = 149 PwMBC) were included. Results showed no significant between-group effects in the primary outcome, QOL. Whilst effects in favour of prescribed exercise were observed in CRF (ES 1.3, 95% CI 0.06 to 2.35) and PA (ES 0.83, 95% CI 0.14 to 1.42) in two separate studies, as the lower bound of the 95% CI did not reach Cohen's threshold, there is considerable uncertainty regarding the treatment effect.

CONCLUSIONS

There is currently insufficient evidence to support the use of prescribed exercise to improve QOL, physical performance, muscle health, CRF and PA in PwMBC. Further high-quality trials are required to investigate the effectiveness of exercise interventions in PwMBC.

SYSTEMATIC REVIEW REGISTRATION NUMBER

PROSPERO CRD42022304528. CONTRIBUTION OF THE PAPER.

The Effect of Lifestyle Interventions on Anxiety, Depression and Stress: A Systematic Review and Meta-Analysis of Randomized Clinical Trials

BACKGROUND/OBJECTIVES

Depression, anxiety, and stress are common mental health issues that affect individuals worldwide. This systematic review and meta-analysis examined the effectiveness of various lifestyle interventions including physical activity, dietary changes, and sleep hygiene in reducing the symptoms of depression, anxiety, and stress. Using stress as an outcome and conducting detailed subgroup analyses, this study provides novel insights into the differential effects of lifestyle interventions across diverse populations.

METHODS

Five databases were systematically searched: PubMed, Web of Science, Scopus, Cochrane Library, and Google Scholar, for gray literature searches. Keywords were used to search each database. The search period was from the conception of the databases until August 2023 and was conducted in English. For each analysis, Hedges' g was reported with a 95% confidence interval (CI) based on the random-effects method. Subgroups were analyzed and heterogeneity and publication bias were examined.

RESULTS

Ninety-six randomized clinical trial studies were included in this meta-analysis. Lifestyle interventions reduced depression (Hedges g -0.21, 95% confidence interval -0.26, -0.15; p < 0.001; I2 = 56.57), anxiety (Hedges g -0.24, 95% confidence interval -0.32, -0.15; p < 0.001; I2 = 59.25), and stress (-0.34, -0.11; p < 0.001; I2 = 61.40).

CONCLUSIONS

Lifestyle interventions offer a more accessible and cost-effective alternative to traditional treatments and provide targeted benefits for different psychological symptoms.

Feasibility and preliminary effects of the Fit2ThriveMB pilot physical activity promotion intervention on physical activity and patient reported outcomes in individuals with metastatic breast cancer

PURPOSE

Physical activity research among patients with metastatic breast cancer (MBC) is limited. This study examined the feasibility and potential benefits of Fit2ThriveMB, a tailored mHealth intervention.

METHODS

Insufficiently active individuals with MBC (n = 49) were randomized 1:1 to Fit2ThriveMB (Fit2ThriveMB app, Fitbit, and weekly coaching calls) or Healthy Lifestyle attention control (Cancer.Net app and weekly calls) for 12 weeks. Fit2ThriveMB aimed to increase daily steps via an algorithm tailored to daily symptom rating and step goal attainment. The primary outcome was feasibility defined as ≥ 80% completion rate. Secondary feasibility metrics included meeting daily step goal and wearing the Fitbit ≥ 70% of study days, fidelity, adherence to intervention features and safety. Secondary outcomes included physical activity, sedentary time, patient reported outcomes (PROs), health-related quality of life (QOL) and social cognitive theory constructs. A subsample (n = 25) completed functional performance tests via video conferencing.

RESULTS

The completion rate was 98% (n = 1 died). No related adverse events were reported. Fit2ThriveMB participants (n = 24) wore the Fitbit 92.7%, met their step goal 53.1%, set a step goal 84.6% and used the app 94.1% of 84 study days. Intent-to-treat analyses indicated trends toward improvements in activity, QOL, and some PROs, social cognitive theory constructs, and functional performance tests favoring the Fit2ThriveMB group. Significant effects favoring Fit2ThriveMB were observed for self-efficacy and goal-setting. However, some PROs and functional performance improvements favored the control group (p-values > 0.05).

CONCLUSIONS

Fit2ThriveMB is feasible and safe for patients with MBC and warrants further evaluation in randomized controlled trials with larger sample sizes. Registration Clinicaltrials.gov NCT04129346, https://clinicaltrials.gov/ct2/show/NCT04129346.

The impact of physical activity on progression-free and overall survival in metastatic breast cancer based on molecular subtype

BACKGROUND

Although adequate physical activity has been shown to be beneficial in early breast cancer, evidence in metastatic breast cancer is sparse and contradictory, which could be related to distinct effects of physical activity on the different molecular cancer subtypes. Therefore, we here evaluated the effect of physical activity on progression-free and overall survival (PFS, OS) in metastatic breast cancer, specifically looking at molecular subtypes.

METHODS

International Physical Activity Questionnaire (IPAQ) questionnaires, filled out by patients enrolled in the prospective PRAEGNANT registry (NCT02338167; n = 1,270) were used to calculate metabolic equivalent task (MET) minutes, which were subsequently categorized into low (n = 138), moderate (n = 995) or high IPAQ categories (n = 137). Cox regression analyses were used to evaluate the impact of IPAQ categories and its interaction with molecular subtypes on PFS and OS.

RESULTS

Patient and tumor characteristics were equally distributed across IPAQ categories. HER2pos, HRpos and TNBC were present in 23.1%, 65.7% and 11.2% of patients, respectively. IPAQ scores did not have an impact on PFS and OS in addition to established prognostic factors, either overall or in particular molecular subtypes (PFS: p = 0.33 and OS: p = 0.08, likelihood ratio test). Exploratory analyses showed higher overall survival rates for high IPAQ categories compared to low/moderate IPAQ categories in luminal B-like breast cancer.

CONCLUSIONS

Self-reported physical activity using the IPAQ questionnaire did not significantly affect PFS or OS in patients suffering from metastatic breast cancer. Nevertheless, some hypothesis-generating differences between molecular subtypes could be observed, which may be interesting to evaluate further.

A Scoping Review of Group Nutrition Education and Cooking Programs for People Affected by Cancer

BACKGROUND

Group nutrition education and cooking programs for people affected by cancer have the potential to address commonly reported unmet needs for dietary information, as well as provide opportunities for practical and social support.

OBJECTIVE

To report the nutrition-related content, delivery methods, and outcomes measured in group nutrition education and cooking programs for people affected by cancer in the published literature, and describe how these programs were developed, implemented, and evaluated.

METHODS

A scoping review of academic literature is reported using the preferred reporting items for systematic reviews and meta-analyses extension for scoping reviews guidelines. Key terms such as cancer, nutrition education, and cooking were searched across 4 databases (PubMed, Embase, Cumulative Index of Nursing and Allied Health Literature, and Web of Science) on June 1, 2023, for records published over the past 10 years. Records were independently screened by 2 reviewers. Data extracted included program participants, components, nutrition-related content, delivery methods, outcomes measured, and information about how the program was developed, implemented, and evaluated.

RESULTS

Of 2,254 records identified, 41 articles met eligibility criteria, reporting on 37 programs. Most programs were designed for adult cancer survivors (89%) and conducted after primary treatment (81%). Four programs invited caregivers to attend. Almost all programs (97%) included a nutrition education component, and more than half (59%) included cooking activities, with a predominant focus on recommendations and practical skills for healthy eating. Most programs were delivered byregistered dietitians and/or nutritionists (54%) and included group discussions (57%) and active involvement in cooking activities (57%) in program delivery. The participant outcomes that were measured covered dietary, psychosocial, clinical, and anthropometric domains. Many programs were developed with cancer survivors, dietitians or nutritionists, and researchers. No studies reported on sustainability of program implementation or overall costs. Programs were evaluated using data from surveys, focus groups, interviews, and field notes, with articles typically reporting on participation rates, reasons for nonparticipation, program acceptability, aspects of the nutrition-related programs valued by participants, and suggestions for improvement.

CONCLUSIONS

Future research should prioritize assessing the effectiveness of these programs for participants. Future development, implementation, and evaluation of these programs should include family members and friends and assess the sustainability of program delivery, including cost-effectiveness.

Supervised, structured and individualized exercise in metastatic breast cancer: a randomized controlled trial

Physical exercise both during and after curative cancer treatment has been shown to reduce side effects. Evidence in the metastatic cancer setting is scarce, and interventions that improve health-related quality of life (HRQOL) are much needed for patients with metastatic breast cancer (MBC). The multinational randomized controlled PREFERABLE-EFFECT trial assessed the effects of exercise on fatigue and HRQOL in patients with MBC. In total, 357 patients with MBC and a life expectancy of ≥6 months but without unstable bone metastases were recruited at eight study centers across five European countries and Australia. Participants were randomly assigned (1:1) to usual care (control group, n = 179) or a 9-month supervised exercise program (exercise group, n = 178). Intervention effects on physical fatigue (European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ)-FA12 scale) and HRQOL (EORTC QLQ-C30 summary score) were determined by comparing the change from baseline to 3, 6 (primary timepoint) and 9 months between groups using mixed models for repeated measures, adjusted for baseline values of the outcome, line of treatment (first or second versus third or higher) and study center. Exercise resulted in significant positive effects on both primary outcomes. Physical fatigue was significantly lower (-5.3 (95% confidence interval (CI), -10.0 to -0.6), Bonferroni-Holm-adjusted P = 0.027; Cohen's effect size, 0.22) and HRQOL significantly higher (4.8 (95% CI, 2.2-7.4), Bonferroni-Holm-adjusted P = 0.0003; effect size, 0.33) in the exercise group than in the control group at 6 months. Two serious adverse events occurred (that is, fractures), but both were not related to bone metastases. These results demonstrate that supervised exercise has positive effects on physical fatigue and HRQOL in patients with MBC and should be recommended as part of supportive care.ClinicalTrials.gov Identifier: NCT04120298 .

Psychosocial and supportive care concerns of young women living with advanced breast cancer: baseline findings from a prospective virtual support intervention study

PURPOSE

Adolescent and young adults (AYAs) with metastatic breast cancer (MBC) experience high physical and psychosocial burdens compounded by a disrupted life trajectory. We sought to determine the psychosocial and supportive care concerns of this population to better understand and address unmet needs.

METHODS

AYAs diagnosed with MBC (18-39 years) participating in a prospective interventional study (Young, Empowered, and Strong) at Dana-Farber Cancer Institute completed an electronic survey following enrollment. Measures evaluated sociodemographics, health behaviors, quality of life, and symptoms, among others. We used two-sided Fisher's exact tests to determine associations between concerns (e.g., cancer progression, side effects, lifestyle, finances, fertility) and demographic variables.

RESULTS

Among 77 participants enrolled from 9/2020-12/2022, average age at MBC diagnosis and survey was 35.9 (range: 22-39) and 38.3 years (range: 27-46), respectively. Most were non-Hispanic white (83.8%) and 40.3% reported their diagnosis caused some financial problems. Many were concerned about fertility (27.0%), long-term treatment side effects (67.6%), exercise (61.6%), and diet (54.1%). Select concerns varied significantly by age, race/ethnicity, and education. Younger women at survey reported greater concern about familial cancer risk (p = 0.028). Women from minority racial/ethnic groups more frequently reported issues talking about their cancer to family/friends (p = 0.040) while those with more education were more frequently concerned with long-term effects of cancer on their health (p = 0.021).

CONCLUSION

Young women living with MBC frequently report psychosocial, health, and cancer management concerns. Tailoring supportive care and communications to address prevalent concerns including disease progression and treatment side effects may optimize wellbeing.

Women with metastatic breast cancer don't just follow step-count trends, they exceed them: an exploratory study

PURPOSE

Metastatic breast cancer (MBC) patients are living longer at the cost of several side effects, affecting their physical and mental health. Physical activity can help women with MBC to improve their wellbeing. Technology-based exercise interventions have shown promising outcomes; however, studies that document their benefits on health behaviors are lacking. Therefore, we aimed to document the impact of virtual assistant technology on enhancing daily step counts in women with MBC.

METHODS

A total of 38 women with MBC participated in the 90-day Nurse AMIE (Addressing Metastatic Individuals Everyday) for Amazon Echo Show study, an artificial intelligence-based supportive care intervention. Each day, Nurse AMIE asked four symptom questions (sleep, pain, fatigue, and distress) and daily step counts. Based on participants' answers, an algorithm provided an activity to assist with symptom management.

RESULTS

During the first week of the intervention, mean step counts per day were 4935 ± 2884, and during the last week of the intervention, mean step counts per day were 1044 steps higher, for an average of 5979 ± 2651 steps. Non-significant differences were observed between the first and last week (p = 0.211) and between the first and last day (p = 0.099), despite an improvement of 21.2% over time and significant differences between baseline and the other days.

CONCLUSION

Women with MBC benefited from the Nurse AMIE for Amazon Echo Show intervention. Despite improvements over time (> 20%), we cannot conclude that the intervention significantly enhanced participants' daily step counts. Larger studies using virtual assistant technologies are required, and this study should be considered a first step in this direction.

Differential Impact of Exercises on Quality-of-Life Improvement in Breast Cancer Survivors: A Network Meta-Analysis of Randomized Controlled Trials

This study aimed to assess the effectiveness of various exercise interventions in enhancing the quality of life for breast cancer survivors. To achieve this, randomized controlled trials were identified from major electronic databases, focusing on the relationship between exercise and quality of life in breast cancer survivors. The primary outcome was the impact of exercise on quality of life 12 weeks after the intervention, with a secondary outcome comparing dropout rates between intervention groups and a regular care control group. The study protocol was registered with INPLASY (INPLASY202340007). A network meta-analysis of nine randomized controlled trials involving 725 participants was conducted, examining aerobic and strength training, aerobic activity, yoga, and strength exercise. Results showed that aerobic and strength training was the most effective intervention, significantly improving the quality of life of breast cancer survivors (1.31; 95% confidence interval: 0.49 to 2.12). Aerobic activity had a borderline effect (0.83; 0.03 to 1.63), while no exercise interventions were associated with an increased dropout risk compared to the control group (regular care). The study concluded that concurrent aerobic and strength training can improve breast cancer survivors' quality of life after 12 weeks of intervention without increasing dropout risk compared to regular care.

Wearable-Technology-Assisted Interventions for Breast-Cancer Survivors: A Meta-Analysis and Meta-Regression

OBJECTIVES

This review, meta-analysis, and meta-regression aimed to (1) evaluate the effect of wearable-technology-assisted interventions on the physical activity and weight of breast cancer survivors, (2) identify the essential features of wearable-technology-assisted interventions, and (3) explore the covariates of the treatment effect.

DATA SOURCES

Randomized controlled trials were obtained from 10 databases and trial registries from inception until December 21, 2021. Trials that examined the effects of wearable-technology-assisted interventions for individuals with breast cancer were included. The mean and standard deviation scores were used to compute the effect sizes.

CONCLUSION

The meta-analyses revealed significantly improved in moderate-to-vigorous activity, total physical activity, and weight control. The findings from this review suggest that wearable-technology-assisted interventions may be a potential solution to improve physical activity and weight in breast cancer survivors. Future studies should include high-quality trials with large sample sizes.

IMPLICATIONS FOR NURSING PRACTICE

Wearable technology has promising effects on physical activity and could be incorporated into routine care for breast cancer survivors.

Harms of exercise training in patients with cancer undergoing systemic treatment: a systematic review and meta-analysis of published and unpublished controlled trials

Background

Exercise is recommended for people with cancer. The aim of this study was to evaluate the harms of exercise in patients with cancer undergoing systemic treatment.

Methods

This systematic review and meta-analysis included published and unpublished controlled trials comparing exercise interventions versus controls in adults with cancer scheduled to undergo systemic treatment. The primary outcomes were adverse events, health-care utilization, and treatment tolerability and response. Eleven electronic databases and trial registries were systematically searched with no date or language restrictions. The latest searches were performed on April 26, 2022. The risk of bias was judged using RoB2 and ROBINS-I, and the certainty of evidence for primary outcomes was assessed using GRADE. Data were statistically synthesised using pre-specified random-effect meta-analyses. The protocol for this study was registered in the PROESPERO database (ID: CRD42021266882).

Findings

129 controlled trials including 12,044 participants were eligible. Primary meta-analyses revealed evidence of a higher risk of some harms, including serious adverse events (risk ratio [95% CI]: 1.87 [1.47-2.39], I2 = 0%, n = 1722, k = 10), thromboses (risk ratio [95% CI]: 1.67 [1.11-2.51], I2 = 0%, n = 934, k = 6), and fractures (risk ratio [95% CI]: 3.07 [3.03-3.11], I2 = 0%, n = 203, k = 2) in intervention versus control. In contrast, we found evidence of a lower risk of fever (risk ratio [95% CI]: 0.69 [0.55-0.87], I2 = 0% n = 1109, k = 7) and a higher relative dose intensity of systemic treatment (difference in means [95% CI]: 1.50% [0.14-2.85], I2 = 0% n = 1110, k = 13) in intervention versus control. For all outcomes, we downgraded the certainty of evidence due to imprecision, risk of bias, and indirectness, resulting in very low certainty of evidence.

Interpretation

The harms of exercise in patients with cancer undergoing systemic treatment are uncertain, and there is currently insufficient data on harms to make evidence-based risk-benefits assessments of the application of structured exercise in this population.

Funding

There was no funding for this study.

A Scoping Review and a Taxonomy to Assess the Impact of Mobile Apps on Cancer Care Management

Mobile Health (mHealth) has a great potential to enhance the self-management of cancer patients and survivors. Our study aimed to perform a scoping review to evaluate the impact and trends of mobile application-based interventions on adherence and their effects on health outcomes among the cancer population. In addition, we aimed to develop a taxonomy of mobile-app-based interventions to assist app developers and healthcare researchers in creating future mHealth cancer care solutions. Relevant articles were screened from the online databases PubMed, EMBASE, and Scopus, spanning the time period from 1 January 2016 to 31 December 2022. Of the 4135 articles initially identified, 55 were finally selected for the review. In the selected studies, breast cancer was the focus of 20 studies (36%), while mixed cancers were the subject of 23 studies (42%). The studies revealed that the usage rate of mHealth was over 80% in 41 of the 55 studies, with factors such as guided supervision, personalized suggestions, theoretical intervention foundations, and wearable technology enhancing adherence and efficacy. However, cancer progression, technical challenges, and unfamiliarity with devices were common factors that led to dropouts. We also proposed a taxonomy based on diverse theoretical foundations of mHealth interventions, delivery methods, psycho-educational programs, and social platforms. We suggest that future research should investigate, improve, and verify this taxonomy classification to enhance the design and efficacy of mHealth interventions.

Behavior change techniques in digital physical activity interventions for breast cancer survivors: a systematic review

Given the broad benefits of physical activity (PA) but low PA levels among breast cancer survivors (i.e., women who have received a breast cancer diagnosis), innovative and evidence-based techniques are needed to motivate and support exercise. This study systematically reviews the use of behavior change techniques (BCTs) in digital PA interventions for breast cancer survivors. Studies were retrieved from five electronic databases and were included if they (i) sampled exclusively female breast cancer survivors aged >18 years, (ii) involved a digital intervention with the primary purpose of increasing PA, (iii) included a BCT component, (iv) used a randomized or quasi-randomized design, and (v) were published from January 2000 to May 2022. Two coders independently extracted data. Twenty primary studies met the inclusion criteria and were included in this review. All interventions used at least one BCT (mean 4 ± 1, range 2-13); self-monitoring (85%) and goal setting (79%) were the most common BCTs. Twelve of 20 (60%) studies reported improvements in PA behavior in the intervention vs. control group, and self-monitoring and goal setting were the most commonly used BCTs in these studies. Of the 93 total BCTs, 66 were not used in any interventions in the review, including critical constructs for PA behavior change (e.g., biofeedback). BCTs, important facilitators of PA behavior change, are being underutilized in digital PA interventions for breast cancer survivors. Future research should incorporate more diverse BCTs to explore if they can add to the effectiveness of digital interventions for this population.

Lifestyle medicine for anxiety symptoms: A meta-analysis of randomized controlled trials

BACKGROUND

Lifestyle medicine (LM) is gaining increasing attention as a treatment option for anxiety, but the current state of evidence has not yet been systematically examined.

METHODS

Six electronic databases were systematically searched from inception to February 2022. Randomized controlled trials (RCTs) comparing the effects of multicomponent LM interventions on anxiety symptoms with either care-as-usual, waitlist, no intervention, or attention control group on anxiety symptoms were identified.

RESULTS

A total of 53 RCTs with 18,894 participants were included for qualitative synthesis, in which 45 RCTs with data available were included for meta-analysis. Multicomponent LM intervention was significantly more effective than the control groups in reducing anxiety symptoms at immediate posttreatment (d = 0.19, p < .001) and at short-term follow-up (d = 0.29, p < .001). However, no significant difference at medium-term was found (p = .14), whereas more studies are needed to study the long-term effects. The subgroup analyses suggested that baseline anxiety symptoms was a significant moderator, suggesting that those with moderate level of baseline anxiety symptoms appeared to have greater improvements (d = 0.66, p < .05).

LIMITATIONS

Minimal anxiety symptoms at baseline contributed to the floor effect and influenced the degree of improvement. The included RCTs had a high risk of bias in general with potential publication bias detected.

CONCLUSION

The findings of this meta-analysis provided support for the positive effects of multicomponent LM interventions for anxiety symptoms. Future research is needed to determine the long-term effects of multicimponent LM and the optimal baseline anxiety severity.

The Effect of Exercise and Nutritional Interventions on Body Composition in Patients with Advanced or Metastatic Cancer: A Systematic Review

Advanced and metastatic cancers significantly alter body composition, leading to decreased lean mass and variable effects on fat mass. These effects on body composition are associated with significant physical dysfunction and poor prognosis in patients with cancer. Whilst exercise and nutritional interventions are likely to be of benefit in counteracting these effects, relatively little is known about using such interventions in patients with advanced or metastatic cancer. Therefore, in this systematic review we examine the effect of exercise and combined exercise and nutritional interventions on lean mass and fat mass among patients diagnosed with advanced or metastatic cancer. Following PRISMA guidelines, we identified 20 articles from PubMed, EMBASE, CINAHL, Cochrane CENTRAL, PEDro, SPORTDiscus, and REHABDATA. Overall, advanced or metastatic cancer populations comprising of mixed cancer types were most commonly examined (n = 8) with exercise or combined exercise and nutritional interventions being well-tolerated with few adverse effects. Both intervention approaches may preserve lean mass, while only combined interventions may lead to alterations in fat mass. However, further exercise and nutritional studies are needed to definitively understand their effects on body composition. As exercise and nutrition-related research continues in this understudied population, the knowledge gained will help guide supportive clinical treatments.

Myosteatosis at diagnosis is adversely associated with 2-year survival in women with estrogen receptor-negative metastatic breast cancer

PURPOSE

To examine the relationship between skeletal muscle (SM) and cancer-specific outcomes for women with estrogen receptor-negative (ER-) metastatic breast cancer (MBC).

METHODS

For this retrospective cohort, females (≥ 18 years) with histologically confirmed ER- MBC and computerized tomography (CT) imaging were screened. Demographic, anthropometric, and clinical data were collected uniformly from the electronic medical record. CT images inclusive of the third lumbar region (L3) at diagnosis, 6 and 12 months, were used to classify sarcopenia (≤ 41 cm²/m²) and myosteatosis (< 41 or 33 Hounsfield Units, adjusted for body mass index (BMI)) and to evaluate changes in SM and total adipose tissue (TAT) over time. Kaplan-Meier curves, Cox Proportional Hazards (PH), and restricted mean survival time (RMST) estimates were generated to examine the relationship between sarcopenia and myosteatosis and time to tumor progression (TTP), treatment toxicity and 2-year survival, adjusting for covariates.

RESULTS

Participants were 58.0 (15.0) years of age, ethnically diverse (55% non-Hispanic white, 31% Black, 11% Hispanic), post-menopausal (73%, n = 111), and classified as overweight (BMI 29.4 (7.6)). At diagnosis, 40% (n = 61) were sarcopenic, 49% had myosteatosis, and 28% (n = 42) had both. While Cox PH modeling and RMST analysis reveal no significant relationship between sarcopenia at diagnosis and 2-year survival (RMST difference - 1.6 (1.4) months, HR 1.35 (0.88-2.08)), these analyses support a significant, adverse association between myosteatosis at diagnosis and 2-year survival (RMST difference - 2.4 (1.5) months, HR 1.72 (1.09-2.72)). Incident sarcopenia was 11% (n = 5/45) and 2.5% (n = 1/40), respectively, while incident myosteatosis was 19% (n = 8/42) and 15% (n = 5/34) at 6 and 12 months, respectively. TTP and treatment toxicities did not appear to be related to diagnostic SM or body composition changes over time.

CONCLUSION

Targeted interventions initiated within the first year of diagnosis to preserve or improve SM quality seem warranted for women with ER-MBC.