A brief yoga intervention implemented during chemotherapy: A randomized controlled pilot study

Effects of different types of exercise on inflammatory markers in cancer patients: A systematic review and Bayesian network meta-analysis

This systematic review and network meta-analysis (NMA) was to investigate the effects of different exercise modalities on inflammatory markers in cancer patients. Using the standardized mean difference (SMD) as the effect size, a Bayesian random-effects network meta-analysis and regression analysis were conducted. Searches were performed across five databases for randomized controlled trials (RCTs) involving cancer patients, with exercise as the intervention, reported outcomes related to inflammatory markers, and interventions lasting more than four weeks, up to June 2024. A total of 57 RCTs (3106 patients) were included. The Cochrane risk of Bias Tool was utilized to assess the RCTs, and the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) tool was employed to evaluate the quality of evidence. NMA results indicate that regular exercise is effective in reducing inflammation in cancer patients, with combined high-intensity aerobic and resistance exercises proving to be the most beneficial. The type, intensity, and total volume of exercise are critical factors in achieving positive outcomes. It is recommended to design exercise programs for cancer patients that combine aerobic and resistance training, with a gradual increase in intensity to ensure safety.

What are we learning with Yoga? Mapping the scientific literature on Yoga using a vector-text-mining approach

The techniques used in yoga have roots in traditions that precede modern science. Research shows that yoga enhances quality of life and well-being, positively impacting physical and mental health. As yoga gains acceptance in Western countries, scientific studies on the subject increase exponentially. However, many of these studies are considered inconsistent due to the diverse methodologies and focuses in the field, which creates challenges for researchers and hampers progress. This study aims to develop a comprehensive framework for existing literature on yoga, facilitating multidisciplinary collaboration and bringing new light to relevant aspects. Given the complexity of the subject, advanced modeling techniques are necessary. Contemporary artificial intelligence methods have advanced Bioinformatics, including text mining (TM), allowing us to employ vector representations of texts to derive semantic insights and organize literature effectively. Based on TM resources, we provided a better general understanding of yoga and highlighted the relationships between yoga practice and various domains, including biochemical parameters and neuroscience. It also reveals that practitioners can learn to engage with their bodies and environments actively, enhancing their quality of life. However, there is a lack of research exploring the mechanisms behind this learning and its potential for further enhancement. Vector TM has made it possible to bolster and improve human analysis. The set of resources developed allowed us to determine the mapping of the literature, the analysis of which revealed 4 dimensions (exercise, physiology, theory and therapeutic) divided into 9 cohesive groups, representing the trends in the literature. The resulting platforms are available to Yoga researchers to evaluate our findings and make their forays into the existing literature.

Effects of Mind-Body Interventions on Immune and Neuroendocrine Functions: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Objective: Chronic stress affects the immune system via the hypothalamic-pituitary-adrenal (HPA) axis and autonomic system. Chronic inflammation is a risk factor for cardiovascular diseases, cancer onset and progression, susceptibility to infection, and cognitive impairment. Mind-body interventions (MBIs) could affect the immune and neuroendocrine systems, and we aimed to assess the correlations among these systems through a meta-analysis. Methods: RCTs were identified by searching three databases: PubMed, Embase, and Scopus. Of the 1697 studies identified, 89 were included in this study. Risk of bias was examined using the Cochrane risk-of-bias assessment tool. Data were pooled using a random-effects model, and SMDs were calculated. I2 statistics and Egger's test were used to assess the significance of the asymmetry. Influence diagnostics were used to assess whether pooled effects were disproportionately dependent on any single study. The trim-and-fill method was applied to all identified asymmetric instances. Meta-regression was used to examine the moderating effect of MBI efficacy on biomarkers. Results: MBIs generally decreased the levels of inflammatory factors, such as the CRP, IL-6, TNF-α, IL-1, IL-8, IL-17, ESR, and cortisol, and increased IL-10, IFN-γ, IL-1ra, BDNF, and secretory IgA. In a subgroup analysis of the CNS and cancer, qigong and yoga showed increased BDNF and IL-6, respectively. Notably, IL-10 was increased in inflammatory diseases, and IFN-γ was increased in viral infections. Conclusions: This study revealed MBIs decrease inflammatory cytokine and increase anti-inflammatory, antiviral, and immune-activating factors. These results suggest the MBIs including gentle physical exercise may be beneficial for neuropsychiatric disorders or tumors. Prospero registration number: CRD42024507646.

A pilot randomized controlled trial of a yoga program for alleviating cancer-related fatigue and psychological distress in women with gynecological cancer

PURPOSE

Yoga can alleviate cancer-related fatigue and psychological distress while improving health-related quality of life. However, most studies focused on breast cancer. This study aimed to evaluate the feasibility and acceptability of a yoga program for women with gynecological cancer and estimate its preliminary effects on cancer-related fatigue, psychological distress, and health-related quality of life.

METHODS

This pilot study used a single-blinded randomized controlled trial design. Participants in the intervention group received the yoga program and usual care, while the control group only received usual care. Feasibility was assessed using eligibility, consent, attrition, and adherence rates. Acceptability was measured using a satisfaction questionnaire. Preliminary effects were evaluated on cancer-related fatigue, psychological distress, and health-related quality of life outcomes.

RESULTS

The yoga program demonstrated feasibility, with satisfactory rates of eligibility (62.7%), consent (64.9%), attrition (4.2%), and adherence (75%). The participants reported high satisfaction with the program. Significant intervention effects were observed on the behavioral/severity dimension of cancer-related fatigue (Hedges's g = 0.86). The intervention group demonstrated greater reductions in overall and other cancer-related fatigue subscales than the control group. Greater improvements in distress, anxiety, depression, and health-related quality of life were noted in the intervention group than in the control group, with effect sizes of 0.29, 0.77, 0.21, and 0.12, respectively.

CONCLUSIONS

The yoga program is feasible and acceptable, showing a trend in reducing cancer-related fatigue and psychological distress and improving health-related quality of life in women with gynecological cancer. A full-scale randomized controlled trial is warranted.

Integrative Oncology: Incorporating Evidence-Based Approaches for Patients With GI Cancers

Data have matured to support incorporation of integrative oncology modalities into comprehensive cancer care. Clinical practice guidelines have recently been published by ASCO for diet and exercise (2022) and use of cannabinoids and cannabis (2024) and jointly by ASCO and the Society for Integrative Oncology (SIO) for application of integrative approaches in the management of pain (2022), anxiety and depression (2023), and fatigue (2024) among adults with cancer. Following the ASCO-SIO guidelines, clinicians should recommend mindfulness-based interventions (MBIs) to patients with symptoms of anxiety or depression and MBIs and exercise for management of fatigue during or after completion of cancer treatment. We will review the basis of these recommendations and evidence to support use of other mind-body approaches, exercise, nutrition, acupuncture/acupressure, and natural products in the specific contexts of GI cancers. For example, optimizing physical activity and diet is associated with improved survival after a colorectal cancer (CRC) diagnosis, in addition to conferring symptom management benefits. We will also highlight gaps in research, including that most studies enrolling patients with GI malignancies have focused on CRC. A limitation of nonpharmacologic evidence-based guidelines is that they list broad categories (eg, yoga or acupuncture) and lack implementation details. How to safely and equitably incorporate integrative approaches into conventional cancer care will be addressed. This ASCO Educational Book article aims to be both evidence-informed and practical, with attention to unique considerations for people with GI cancers.

Effectiveness of Yoga in Modulating Markers of Immunity and Inflammation: A Systematic Review and Meta-Analysis

Chronic inflammation is central to the pathogenesis of many chronic inflammatory conditions. This review aims to analyze whether the practice of yoga, or yogic meditation and breathing, has any effect on the levels of inflammatory cytokines and other inflammatory markers in patients with various chronic inflammatory diseases such as rheumatoid arthritis, neoplastic disorders, and asthma, as well as in healthy subjects, compared to usual care or sham interventions. A comprehensive search of databases (PubMed, CENTRAL, Embase, and CINAHL) was performed. Randomized controlled trials (RCTs) that evaluated the effects of yoga as an intervention on inflammatory markers were analyzed. A total of 26 studies were included. Only two studies had a low risk of bias (RoB); 24 other studies had a high RoB. Most studies (n=24) reported a favorable outcome with yoga, irrespective of the type of yoga used, the condition studied, and the duration of the intervention. The commonly reported inflammatory markers included IL-6 (n=17), tumor necrosis factor-alpha (TNF-a) (n=13), and C-reactive protein (CRP) (n=10). Most studies showed a significant reduction in inflammatory markers in the yoga group (YG) compared to the control group (CG). Few studies also showed significant improvement in markers of cellular immunity (interferon gamma (IFN-g), IL-10, and transforming growth factor-beta (TGF-b); n=2 each) and improved mucosal defense (IgA, IL-6, and IL-2; n=2 each). A meta-analysis of IL-6, TNF-a, and CRP showed yoga had a favorable effect on the levels of these markers, but it was not statistically significant. Current evidence suggests that yoga can be a complementary intervention for various chronic inflammatory conditions. However, the quality of the evidence is poor, along with considerable heterogeneity. In the future, investigators should describe the intervention better, with a uniform assortment of outcome measures and treatment conditions, to generate high-quality evidence.

Mind-body therapies adjuvant to chemotherapy improve quality of life and fatigue in top cancers: A systematic review and meta-analysis

BACKGROUND

Breast, lung and colorectal cancers are 3 of the top 4 most common cancers worldwide. Their treatment with chemotherapy often results in adverse effects on quality of life, fatigue and functional exercise capacity amongst patients. Mind-body therapies, including yoga, Tai chi and Qigong, are commonly used as complementary and alternative therapies in cancer. This meta-analysis evaluates the effects of yoga, Tai chi and Qigong in alleviating the adverse effects of chemotherapy.

METHODS

Various databases were systematically interrogated using specific search terms, returning 1901 manuscripts. Removal of duplicates, irrelevant studies, those lacking available data and applying inclusion/exclusion criteria reduced this number to 9 manuscripts for inclusion in the final meta-analyses. Mean differences were calculated to determine pooled effect sizes using RStudio.

RESULTS

This is the first systematic review and meta-analysis to demonstrate significant improvements in fatigue for colorectal cancer patients undergoing chemotherapy with a reduction of -1.40 (95 % CI: -2.24 to -0.56; p = 0.001) observed in mind-body therapy intervention groups.

CONCLUSION

Yoga, Tai chi and Qigong could all be implemented alongside adjuvant therapies to alleviate the adverse effects on colorectal cancer patient fatigue during chemotherapy treatment.

REVIEW REGISTRATION

This systematic review and meta-analysis is registered on InPlasy: registration number INPLASY202390035; doi: https://doi.org/10.37766/inplasy2023.9.0035.

Proof-of-Concept of an Integrated Yoga and Psychological Intervention in Mitigating Distress Among Diverse Women With Gynecologic, Gastrointestinal, and Thoracic Cancers

Background: Fear of cancer recurrence (FCR), cancer-distress, depression, and anxiety are prevalent concerns among women with gynecologic and other understudied cancers, especially among women of color and lower socioeconomic status (SES). Evidence indicates that mind-body interventions are effective in reducing such distress. This study evaluates (1) proof-of-concept of an integrated group yoga and psychological intervention in alleviating distress among women with gynecologic, gastrointestinal, and thoracic cancers and (2) differences in efficacy across social and economic factors. Methods: One hundred twenty-five participants were enrolled in a 10-week, single-arm, integrated group intervention utilizing mindfulness meditation, psychotherapy skills, and yoga. They completed measures of FCR, cancer-distress, depression, and anxiety at baseline and following intervention. Mixed-linear models evaluated change in outcomes across the intervention and moderating effects of age, minority status, and SES among 51 participants with available data. Results: Reductions in total (b = -2.06, P = .012) and somatic depressive symptoms (b = -1.79, P = .002) and state anxiety (b = -6.21, P = .005) were observed across the sample. Higher SES was associated with greater reductions in psychosocial distress related to FCR (b = -0.74, P = .050), and in total (b = -1.06, P = .049) and affective depressive symptoms (b = -0.76, P = .006). Women of color experienced greater declines in somatic symptoms compared to non-Hispanic White women (b = -2.71, P = .031), with women of color experiencing lower SES exhibiting greatest reduction in these symptoms (b = 1.73, P = .026). Conclusions: This study demonstrates proof-of-concept that an integrated psychological and yoga intervention may reduce depressive symptoms and state anxiety among women with gynecologic, gastrointestinal, and thoracic cancers, with racial and/or ethnic minority status and SES moderating some of these effects. Future research should examine intervention feasibility and acceptability among diverse women with cancer and evaluate efficacy using a randomized controlled trial design.Trial registration: ClinicalTrials.gov NCT03385577.

Multidimensionality of the PROMIS sleep disturbance 8b short form in working adult populations

OBJECTIVES

The Patient-Reported Outcomes Measurement Information System sleep disturbance measures were developed using item response theory assumptions of unidimensionality and local independence. Given that sleep health is multidimensional, we evaluate the factor structure of the Patient-Reported Outcomes Measurement Information System sleep disturbance 8b short form to examine whether it reflects a unidimensional or multidimensional construct.

METHODS

Six full-time working adult samples were collected from civilian and military populations. Exploratory and confirmatory factor analyses were conducted. Single-factor and two-factor models were performed to evaluate the dimensionality of sleep disturbance using the 8b short form. Sleep duration and subjective health were examined as correlates of the sleep disturbance dimensions.

RESULTS

Across six working adult samples, single-factor models consistently demonstrated poor fit, whereas the two-factor models, with insomnia symptoms (ie, trouble sleeping) and dissatisfaction with sleep (ie, subjective quality of sleep) dimensions demonstrated sufficient fit that was significantly better than the single-factor models. Across each sample, dissatisfaction with sleep was more strongly correlated with sleep duration and subjective health than insomnia symptoms, providing additional evidence for distinguishability between the two sleep disturbance factors.

CONCLUSIONS

In working adult populations, the Patient-Reported Outcomes Measurement Information System sleep disturbance 8b short form is best modeled as two distinguishable factors capturing insomnia symptoms and dissatisfaction with sleep, rather than as a unidimensional sleep disturbance construct.

Mind-Body Therapies for Sleep Disturbance among Patients with Cancer: A Systematic Review and Meta-analysis

OBJECTIVE

s: To assess whether mind-body therapies (MBTs) are effective for relieving sleep disturbance among patients with cancer.

DESIGN

Systematic review and meta-analysis of randomized controlled trials (RCTs).

METHODS

Seven English electronic databases were searched from the date of inception to September 2022. All RCTs that included adults (≥18 years) who were treated with mindfulness, yoga, qigong, relaxation, and hypnosis were screened. The outcome was subjective and/or objective sleep disturbance.The revised Cochrane tool (RoB 2.0) was applied to evaluate the risk of bias. The RevMan software was applied to assessed each outcome according different control groups and assessment time points. Subgroup analyses were performed according to different categories of MBTs.

RESULTS

Sixty-eight RCTs (6339 participants) were identified. After requesting for missing data from corresponding authors of included RCTs, 56 studies (5051 participants) were included in the meta-analysis. The meta-analysis showed a significant immediate effect of mindfulness, yoga, relaxation, and hypnosis on subjective sleep disturbance, compared with usual care or wait list control, and the effect of mindfulness lasted at least 6 months. For objective sleep outcomes, we observed significant immediate effects of yoga on wake after sleep onset and of mindfulness on sleep onset latency and total sleep time. Compared with active control interventions, MBTs had no significant effect on sleep disturbance.

CONCLUSIONS

Mindfulness, yoga, relaxation, and hypnosis were effective in sleep disturbance severity reduction among patients with cancer at post-intervention, and the effect of mindfulness lasted at least 6 months. Future MBTs studies should apply both objective and subjective sleep measurement tools.

Feasibility of Systems Support Mapping to guide patient-driven health self-management in colorectal cancer survivors

OBJECTIVE

To evaluate feasibility of System Support Mapping (MAP), a systems thinking activity that involves creating a diagram of existing self-management activities (e.g. symptom management, health behaviors) to facilitate autonomous engagement in optimal self-management.

DESIGN

One-arm pilot study of MAP in colorectal cancer survivors (NCT03520283).

MAIN OUTCOME MEASURES

Feasibility of recruitment and retention (primary outcome), acceptability, and outcome variability over time.

RESULTS

We enrolled 24 of 66 cancer survivors approached (36%) and 20 completed follow-up (83%). Key reasons for declining participation included: not interested (n = 18), did not perceive a need (n = 9), and emotional distress/overwhelmed (n = 7). Most participants reported that MAP was acceptable (e.g. 80% liked MAP quite a bit/very much). Exploratory analyses revealed a -4.68 point reduction in fatigue from before to 2 weeks after MAP exceeding a minimally important difference (d = -0.68). There were also improvements in patient autonomy (d = 0.63), self-efficacy (for managing symptoms: d = 0.56, for managing chronic disease: d = 0.44), psychological stress (d = -0.45), anxiety (d = -0.34), sleep disturbance (d = -0.29) and pain (d = -0.32). Qualitative feedback enhanced interpretation of results.

CONCLUSIONS

MAP feasibility in colorectal cancer survivors was mixed, predominantly because many patients did not perceive a need for this approach. MAP was acceptable among participants and showed promise for improving health outcomes.

Yoga, Meditation, Breathing Exercises, and Inflammatory Biomarkers with Possible Implications in COVID-19: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Introduction

COVID-19, a multisystem disease, has implications for various immunity and infection biomarkers. Yoga (Y), meditation (M), and pranayama (P), and their combinations have shown positive changes on those biomarkers among other than COVID-19 patients and healthy people. So, we aimed to document the evidence of possible implication in a systematic way.

Materials and Methods

We screened 84 full texts, published in the last ten years, from three databases, from which only 44 met the eligibility criteria, and then extracted the data related to demographic characteristics, intervention, results, and strengths and limitations in two MS-Excel grids, and then presented them in tables and figures. Furthermore, we carried out meta-analysis including subgroup and sensitivity analysis using a random effects model of 11 RCTs and reported the mean difference, heterogeneity, and p value with 95% CI and presented them with forest and funnel plots and the tables.

Results

Twenty-five biomarkers of 4023 participants (range, 15-413) from 13 countries, healthy and clinical, from both sexes above 18 years, and from mainly clinical settings, were reported. YMP intervention, in solitary or in different possible combinations with varied durations among clinical and pregnant (range, 960-4800 minutes) and healthy (960-8400 minutes, excluding two studies of 20 minutes only) participants, was reported. It was revealed that 25 biomarkers, nine among the apparently healthy, 14 among the patients, and two among the pregnant, changed favourably (p < 0.05). Furthermore, either in meta- or subgroup-analysis, mean differences of IL-6 (-1.44 pg/ml) (95% CI) (-2.33, -0.55), (p = 0.002, I ²  = 82%), Cortisol (-40.75 pg/ml) (95% CI) (-64.13, -17.38), (p = 0.0006, I ²  = 87%), and TNF-α (-3.40 pg/ml) (95% CI) (-4.83, -1.98), (p < 0.0001, I ²  = 79%) showed statistically significant changes. Nonetheless, considerable heterogeneity and publication bias were observed among the studies.

Conclusion

Although more than two dozens of biomarkers in individual studies showed favourable changes, only IL-6, Cortisol, and TNF-α produced significant combined results, even then with much less certainty. Further meta-analysis of biomarkers of COVID-19 patients is highly recommended. Registration: CRD42021283894.

Meta-Analysis of Randomized Controlled Trials on Yoga, Psychosocial, and Mindfulness-Based Interventions for Cancer-Related Fatigue: What Intervention Characteristics Are Related to Higher Efficacy?

Simple Summary

Many individuals with cancer suffer from persistent exhaustion due to cancer therapy, known as cancer-related fatigue (CRF). Yoga, psychosocial, and mindfulness-based interventions are recommended to reduce CRF. However, it is not clear yet how interventions need to be designed to maximize their efficacy. This meta-analysis aimed to identify intervention characteristics associated with greater reductions in CRF. A total of 70 interventions with 6387 participants were included in the analysis. Our results found a positive effect of yoga, psychosocial, and mindfulness-based interventions, while all invention types revealed large differences in intervention effects. In psychosocial interventions, using a group setting and working on cognition was related to higher efficacy. Regarding yoga and mindfulness-based interventions, no specific intervention characteristics emerged as more favorable than others. Overall, this meta-analysis suggests opportunities to optimize psychosocial interventions for CRF, whereas the design of yoga and mindfulness-based interventions seems to allow for variation.

Abstract

Cancer-related fatigue (CRF) is a burdensome sequela of cancer treatments. Besides exercise, recommended therapies for CRF include yoga, psychosocial, and mindfulness-based interventions. However, interventions conducted vary widely, and not all show a significant effect. This meta-analysis aimed to explore intervention characteristics related to greater reductions in CRF. We included randomized controlled trials published before October 2021. Standardized mean differences were used to assess intervention efficacy for CRF and multimodel inference to explore intervention characteristics associated with higher efficacy. For the meta-analysis, we included 70 interventions (24 yoga interventions, 31 psychosocial interventions, and 15 mindfulness-based interventions) with 6387 participants. The results showed a significant effect of yoga, psychosocial, and mindfulness-based interventions on CRF but with high heterogeneity between studies. For yoga and mindfulness-based interventions, no particular intervention characteristic was identified to be advantageous for reducing CRF. Regarding psychosocial interventions, a group setting and work on cognition were related to higher intervention effects on CRF. The results of this meta-analysis suggest options to maximize the intervention effects of psychosocial interventions for CRF. The effects of yoga and mindfulness-based interventions for CRF appear to be independent of their design, although the limited number of studies points to the need for further research.

Physical Activity: A Systematic Review to Inform Nurse Recommendations During Treatment for Colorectal Cancer

Colorectal cancer (CRC) is the third most common cancer in the world (American Cancer Society [ACS], 2021). Because of increasing survival rates, there is a need improve survivors' quality of life (QOL), physical functioning, recurrence risk, and comorbidity prevalence (ACS, 2020). Many patients with CRC have poor QOL during and after treatment; other common side effects include fatigue, depression, anxiety, and decreased sleep quality (Bourke et al., 2014; Cramer et al., 2014; Gao et al., 2020). Focusing on the treatment period is important because physical activity (PA) may decrease side effects and prevent PA decline and functional decline, both of which can become significant barriers to PA following treatment. In addition, patients with CRC have a higher rate of comorbidities than patients without cancer, making lifestyle changes pre- and post-treatment particularly important for their continued survival and QOL (ACS, 2020).

Mindfulness and Meditative Movement Interventions for Men Living With Cancer: A Meta-analysis

BACKGROUND

Mindfulness-based interventions, Tai Chi/Qigong, and Yoga (defined here as meditative cancer interventions [MCIs]) have demonstrated small to medium effects on psychosocial outcomes in female breast cancer patients. However, no summary exists of how effective these interventions are for men with cancer.

PURPOSE

A meta-analysis was performed to determine the effectiveness of MCIs on psychosocial outcomes (e.g., quality of life, depression, and posttraumatic growth) for men with cancer.

METHODS

A literature search yielded 17 randomized controlled trials (N = 666) meeting study inclusion criteria. The authors were contacted to request data for male participants in the study when not reported.

RESULTS

With the removal of one outlier, there was a small effect found in favor of MCIs across all psychosocial outcomes immediately postintervention (g = .23, 95% confidence interval [CI] 0.02 to 0.44). Studies using a usual care control arm demonstrated a small effect in favor of MCIs (g = .26, 95% CI 0.10 to 0.42). However, there was insufficient evidence of a superior effect for MCIs when compared to an active control group, including attention control. Few studies examined both short-term and long-term outcomes.

CONCLUSIONS

There is evidence for MCIs improving psychosocial outcomes in male cancer survivors. However, this effect is not demonstrated when limited to studies that used active controls. The effect size found in this meta-analysis is smaller than those reported in MCI studies of mixed gender and female cancer patient populations. More rigorously designed randomized trials are needed that include active control groups, which control for attention, and long-term follow-up. There may be unique challenges for addressing the psychosocial needs of male cancer patients that future interventions should consider.

The Effectiveness of Yoga on Cancer-Related Fatigue: A Systematic Review and Meta-Analysis

PROBLEM IDENTIFICATION

The aim of this article is to evaluate the effectiveness of yoga on cancer-related fatigue (CRF) in patients undergoing chemotherapy and/or radiation therapy.

LITERATURE SEARCH

Relevant English and Chinese articles were retrieved from medical databases and included in this analysis. Standardized critical appraisal instruments from the Joanna Briggs Institute were adopted for the quality assessment.

DATA EVALUATION

16 randomized controlled trials met the inclusion criteria.

SYNTHESIS

Yoga interventions had a positive effect in reducing CRF among patients undergoing chemotherapy and/or radiation therapy, but the adherence to yoga was low. Mixed types of yoga, in addition to supervised and self-practicing strategies, were associated with increased patient adherence and improved CRF.

IMPLICATIONS FOR PRACTICE

Yoga appears to be a safe and effective exercise for the management of CRF during chemotherapy and/or radiation therapy; however, additional high-quality studies are needed to define an optimal yoga intervention strategy.

Perceptions of benefits and barriers to Yoga practice across rural and urban India: Implications for workplace Yoga

BACKGROUND

Even though Yoga is useful for prevention of obesity, diabetes and hypertension it is not universally practiced. The purpose of the study was to determine the benefits and barriers confronted by the community members while incorporating Yoga into routine practice and at workplace.

OBJECTIVE

This study explored the motivators and barriers to Yoga practice by estimating how these elements can be useful for development and incorporation of Yoga as a workplace activity and as a profession.

METHODS

A nationwide multi-centered prospective study was conducted recruiting individuals of different age groups and geographical zones in India. Participants of Yoga intervention group were administered a questionnaire with 19 items on benefits (YBS) and 18 items on barriers for Yoga practice (BFYS). Data was analyzed using SPSS v21 software.

RESULTS

Majority of the participants perceived Yoga improves "physical fitness", "relaxes mind and body", improves "stamina", across age groups. "Lifestyle", "Family commitments", "Physical over-exertion", "No Encouragement from family", "Occupational commitments" and "Few places to do Yoga" were perceived barriers across various geographical zones. Despite knowing the benefits of Yoga, these barriers prevented individuals from integrating it into their daily routine.

CONCLUSIONS

The present study may be considered as a starting point for development of Yoga as a workplace activity and a profession based on the perceptions of its various benefits and barriers faced by a large study population spanning an entire nation.

Physical activity interventions for disease-related physical and mental health during and following treatment in people with non-advanced colorectal cancer

BACKGROUND

Colorectal cancer is the third most commonly diagnosed cancer worldwide. A diagnosis of colorectal cancer and subsequent treatment can adversely affect an individuals physical and mental health. Benefits of physical activity interventions in alleviating treatment side effects have been demonstrated in other cancer populations. Given that regular physical activity can decrease the risk of colorectal cancer, and cardiovascular fitness is a strong predictor of all-cause and cancer mortality risk, physical activity interventions may have a role to play in the colorectal cancer control continuum. Evidence of the efficacy of physical activity interventions in this population remains unclear.

OBJECTIVES

To assess the effectiveness and safety of physical activity interventions on the disease-related physical and mental health of individuals diagnosed with non-advanced colorectal cancer, staged as T1-4 N0-2 M0, treated surgically or with neoadjuvant or adjuvant therapy (i.e. chemotherapy, radiotherapy or chemoradiotherapy), or both.

SEARCH METHODS

We searched the Cochrane Central Register of Controlled Trials (CENTRAL; 2019, Issue 6), along with OVID MEDLINE, six other databases and four trial registries with no language or date restrictions. We screened reference lists of relevant publications and handsearched meeting abstracts and conference proceedings of relevant organisations for additional relevant studies. All searches were completed between 6 June and 14 June 2019.

SELECTION CRITERIA

We included randomised control trials (RCTs) and cluster-RCTs comparing physical activity interventions, to usual care or no physical activity intervention in adults with non-advanced colorectal cancer.

DATA COLLECTION AND ANALYSIS

Two review authors independently selected studies, performed the data extraction, assessed the risk of bias and rated the quality of the studies using GRADE criteria. We pooled data for meta-analyses by length of follow-up, reported as mean differences (MDs) or standardised mean differences (SMDs) using random-effects wherever possible, or the fixed-effect model, where appropriate. If a meta-analysis was not possible, we synthesised studies narratively.

MAIN RESULTS

We identified 16 RCTs, involving 992 participants; 524 were allocated to a physical activity intervention group and 468 to a usual care control group. The mean age of participants ranged between 51 and 69 years. Ten studies included participants who had finished active treatment, two studies included participants who were receiving active treatment, two studies included both those receiving and finished active treatment. It was unclear whether participants were receiving or finished treatment in two studies. Type, setting and duration of physical activity intervention varied between trials. Three studies opted for supervised interventions, five for home-based self-directed interventions and seven studies opted for a combination of supervised and self-directed programmes. One study did not report the intervention setting. The most common intervention duration was 12 weeks (7 studies). Type of physical activity included walking, cycling, resistance exercise, yoga and core stabilisation exercise. Most of the uncertainty in judging study bias came from a lack of clarity around allocation concealment and blinding of outcome assessors. Blinding of participants and personnel was not possible. The quality of the evidence ranged from very low to moderate overall. We did not pool physical function results at immediate-term follow-up due to considerable variation in results and inconsistency of direction of effect. We are uncertain whether physical activity interventions improve physical function compared with usual care. We found no evidence of effect of physical activity interventions compared to usual care on disease-related mental health (anxiety: SMD -0.11, 95% confidence interval (CI) -0.40 to 0.18; 4 studies, 198 participants; I2 = 0%; and depression: SMD -0.21, 95% CI -0.50 to 0.08; 4 studies, 198 participants; I2 = 0%; moderate-quality evidence) at short- or medium-term follow-up. Seven studies reported on adverse events. We did not pool adverse events due to inconsistency in reporting and measurement. We found no evidence of serious adverse events in the intervention or usual care groups. Minor adverse events, such as neck, back and muscle pain were most commonly reported. No studies reported on overall survival or recurrence-free survival and no studies assessed outcomes at long-term follow-up We found evidence of positive effects of physical activity interventions on the aerobic fitness component of physical fitness (SMD 0.82, 95% CI 0.34 to 1.29; 7 studies, 295; I2 = 68%; low-quality evidence), cancer-related fatigue (MD 2.16, 95% CI 0.18 to 4.15; 6 studies, 230 participants; I2 = 18%; low-quality evidence) and health-related quality of life (SMD 0.36, 95% CI 0.10 to 0.62; 6 studies, 230 participants; I2 = 0%; moderate-quality evidence) at immediate-term follow-up. These positive effects were also observed at short-term follow-up but not medium-term follow-up. Only three studies reported medium-term follow-up for cancer-related fatigue and health-related quality of life.

AUTHORS' CONCLUSIONS

The findings of this review should be interpreted with caution due to the low number of studies included and the quality of the evidence. We are uncertain whether physical activity interventions improve physical function. Physical activity interventions may have no effect on disease-related mental health. Physical activity interventions may be beneficial for aerobic fitness, cancer-related fatigue and health-related quality of life up to six months follow-up. Where reported, adverse events were generally minor. Adequately powered RCTs of high methodological quality with longer-term follow-up are required to assess the effect of physical activity interventions on the disease-related physical and mental health and on survival of people with non-advanced colorectal cancer. Adverse events should be adequately reported.

The Impact of Yoga on Fatigue in Cancer Survivorship: A Meta-Analysis

BACKGROUND

Mind-body approaches, particularly yoga, are used by cancer survivors to cope with treatment-related symptoms. Consistency of yoga-related effects on treatment-related symptoms are not known. This meta-analysis was designed to examine effects of yoga on pre- to postintervention improvements in fatigue among cancer patients.

METHODS

PubMed and PsycINFO were searched for peer-reviewed articles of yoga randomized controlled trials including cancer survivors and reporting at least one fatigue measure. Twenty-nine studies met inclusion criteria (n = 1828 patients). Effect sizes (Hedge's g) were calculated for fatigue, depression, and quality of life. Patient-related and intervention-related characteristics were tested as moderators of outcomes. All statistical tests were two-sided.

RESULTS

Yoga practice was associated with a small, statistically significant decrease in fatigue (g = 0.45, P = .013). Yoga type was a statistically significant moderator of this relationship (P = .02). Yoga was associated with a moderate decrease in depression (g = 0.72, P = .007) but was not associated with statistically significant changes in quality of life (P = .48). Session length was a statistically significant moderator of the relationship between yoga and depression (P = .004). Neither timing of treatment (during treatment vs posttreatment) nor clinical characteristics were statistically significant moderators of the effects of yoga on outcomes. The effect of yoga on fatigue and depression was larger when the comparator was a "waitlist" or "usual care" than when the control group was another active treatment (P = .036).

CONCLUSIONS

Results suggest yoga may be beneficial as a component of treatment for both fatigue and depression in cancer survivors.

Yoga for symptom management in oncology: A review of the evidence base and future directions for research

Because yoga is increasingly recognized as a complementary approach to cancer symptom management, patients/survivors and providers need to understand its potential benefits and limitations both during and after treatment. The authors reviewed randomized controlled trials (RCTs) of yoga conducted at these points in the cancer continuum (N = 29; n = 13 during treatment, n = 12 post-treatment, and n = 4 with mixed samples). Findings both during and after treatment demonstrated the efficacy of yoga to improve overall quality of life (QOL), with improvement in subdomains of QOL varying across studies. Fatigue was the most commonly measured outcome, and most RCTs conducted during or after cancer treatment reported improvements in fatigue. Results also suggested that yoga can improve stress/distress during treatment and post-treatment disturbances in sleep and cognition. Several RCTs provided evidence that yoga may improve biomarkers of stress, inflammation, and immune function. Outcomes with limited or mixed findings (eg, anxiety, depression, pain, cancer-specific symptoms, such as lymphedema) and positive psychological outcomes (such as benefit-finding and life satisfaction) warrant further study. Important future directions for yoga research in oncology include: enrolling participants with cancer types other than breast, standardizing self-report assessments, increasing the use of active control groups and objective measures, and addressing the heterogeneity of yoga interventions, which vary in type, key components (movement, meditation, breathing), dose, and delivery mode.

Impact of Yoga on Inflammatory Biomarkers: A Systematic Review

BACKGROUND

Many chronic conditions, including heart disease, cancer, and rheumatoid arthritis, are associated with underlying chronic inflammatory processes. Literature reviews have analyzed a variety of integrative therapies and their relationships with chronic inflammation. This systematic review is unique in reporting solely on yoga's relationship with inflammation. Its purpose was to synthesize current literature examining the impact of yoga interventions on inflammatory biomarkers in adults with chronic inflammatory-related disorders.

METHOD

Searches of several electronic databases were conducted. Inclusion criteria were (a) English language, (b) sample age >18 years old, (c) yoga interventions involving postures with or without yoga breathing and/or meditation, and (d) measured inflammatory biomarkers.

RESULTS

The final review included 15 primary studies. Of these, seven were rated as excellent and eight as average or fair. There was considerable variability in yoga types, components, frequency, session length, intervention duration, and intensity. The most common biomarkers measured were interleukin-6 ( n = 11), C-reactive protein ( n = 10), and tumor necrosis factor ( n = 8). Most studies reported positive effects on inflammatory biomarkers ( n = 11) from baseline to post yoga intervention. Analysis of the dose showed higher total dose (>1,000 min) resulted in greater improvements in inflammation.

CONCLUSION

This review suggests that yoga can be a viable intervention to reduce inflammation across a multitude of chronic conditions. Future studies with detailed descriptions of yoga interventions, measurement of new and well-established inflammatory biomarkers, and larger sample sizes are warranted to advance the science and corroborate results.

Integrative Treatment for Colorectal Cancer: A Comprehensive Approach

A comprehensive approach to integrative treatment of colorectal cancer (CRC) patients involves three spheres of intervention: lifestyle, biology, and conventional treatment. Individualization of treatment is emphasized. The lifestyle sphere includes nutritional therapies, biobehavioral strategies with circadian interventions, and physical care modalities. The biology sphere comprises six host factors in the patient's internal biochemical environment or "terrain": inflammation, glycemia, oxidative stress, immune dysregulation, coagulopathy, and stress chemistries. Laboratory testing of these factors guides integrative lifestyle and supplement recommendations. The conventional treatment sphere includes individualized lifestyle recommendations, and supplements or drugs used to enhance tolerability or effectiveness of conventional treatments. Innovative strategies are implemented, including chronomodulated chemotherapy, chemosensitivity testing, and using results of molecular genomic testing to guide nutritional infusions and supplement recommendations. In the lifestyle sphere, substantial evidence from cohort studies supports recommendations for a diet that emphasizes plant and fish proteins, healthful fats in amounts that are tailored to the clinical circumstance of the patient, and carbohydrates based on unrefined whole grains, vegetables and whole fruits. High glycemic diets and refined carbohydrates, especially sugar-sweetened beverages, should be avoided. Biobehavioral strategies include practice of the relaxation response and related approaches. In addition, specific strategies to promote robust circadian organization (CO) are used to combat quality of life concerns and worsened survival that accompany disrupted CO. Physical activity, including aerobic activity and muscle strengthening, is recommended at all disease stages. In the biology sphere, supplements and lifestyle recommendations for inflammation and glycemia are discussed. In the conventional treatment sphere, supplements and innovative and complementary therapies that may remedy treatment toxicities are reviewed. Approaching CRC treatment with a comprehensive, individualized intervention enables safe and beneficial outcomes in this patient population, which can vary widely in individual biology, treatment toxicities, and disease complications. Further research in integrative therapies for CRC patients is needed.

Intervention Protocol for Investigating Yoga Implemented During Chemotherapy

OBJECTIVE

Fatigue and other treatment-related symptoms are critical therapeutic targets for improving quality of life in patients with colorectal cancer during chemotherapy. Yoga is a promising intervention for improving these therapeutic targets and has been primarily investigated in the group-class format, which is less feasible for cancer patients with high symptom burden to attend. Thus, we developed a protocol for implementing yoga individually in the clinic among patients receiving chemotherapy.

METHODS

We followed recommended domains for developing a yoga protocol to be used in an efficacy trial. These recommendations include consideration to the style, delivery, components of the intervention, dose, specific class sequences, facilitation of home practice, measurement of intervention fidelity, selection of instructors, and dealing with modifications. The intervention protocol was developed by an interdisciplinary team.

PROTOCOL

Yoga Skills Training (YST) consists of four 30-minute in-person sessions and was implemented while in the chair during chemotherapy infusions for colorectal cancer with recommended daily home practice for eight weeks. Therapeutic goals of the YST are to reduce fatigue, circadian disruption, and psychological distress. Elements of the YST are awareness meditation, gentle seated movement, breathing practice, and relaxation meditation. Attention, comfort, and ease are also highlighted.

CONCLUSION

This description of a protocol for integrating yoga with conventional cancer treatment will inform future study designs and clinical practice. The design of the YST is novel because it implements yoga-most commonly studied when taught to groups outside of the clinical setting- individually during clinical care.

Interventions for promoting habitual exercise in people living with and beyond cancer

BACKGROUND

This is an updated version of the original Cochrane Review published in the Cochrane Library 2013, Issue 9. Despite good evidence for the health benefits of regular exercise for people living with or beyond cancer, understanding how to promote sustainable exercise behaviour change in sedentary cancer survivors, particularly over the long term, is not as well understood. A large majority of people living with or recovering from cancer do not meet current exercise recommendations. Hence, reviewing the evidence on how to promote and sustain exercise behaviour is important for understanding the most effective strategies to ensure benefit in the patient population and identify research gaps.

OBJECTIVES

To assess the effects of interventions designed to promote exercise behaviour in sedentary people living with and beyond cancer and to address the following secondary questions: Which interventions are most effective in improving aerobic fitness and skeletal muscle strength and endurance? Which interventions are most effective in improving exercise behaviour amongst patients with different cancers? Which interventions are most likely to promote long-term (12 months or longer) exercise behaviour? What frequency of contact with exercise professionals and/or healthcare professionals is associated with increased exercise behaviour? What theoretical basis is most often associated with better behavioural outcomes? What behaviour change techniques (BCTs) are most often associated with increased exercise behaviour? What adverse effects are attributed to different exercise interventions?

SEARCH METHODS

We used standard methodological procedures expected by Cochrane. We updated our 2013 Cochrane systematic review by updating the searches of the following electronic databases: Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library, MEDLINE, Embase, AMED, CINAHL, PsycLIT/PsycINFO, SportDiscus and PEDro up to May 2018. We also searched the grey literature, trial registries, wrote to leading experts in the field and searched reference lists of included studies and other related recent systematic reviews.

SELECTION CRITERIA

We included only randomised controlled trials (RCTs) that compared an exercise intervention with usual care or 'waiting list' control in sedentary people over the age of 18 with a homogenous primary cancer diagnosis.

DATA COLLECTION AND ANALYSIS

In the update, review authors independently screened all titles and abstracts to identify studies that might meet the inclusion criteria, or that could not be safely excluded without assessment of the full text (e.g. when no abstract is available). We extracted data from all eligible papers with at least two members of the author team working independently (RT, LS and RG). We coded BCTs according to the CALO-RE taxonomy. Risk of bias was assessed using the Cochrane's tool for assessing risk of bias. When possible, and if appropriate, we performed a fixed-effect meta-analysis of study outcomes. If statistical heterogeneity was noted, a meta-analysis was performed using a random-effects model. For continuous outcomes (e.g. cardiorespiratory fitness), we extracted the final value, the standard deviation (SD) of the outcome of interest and the number of participants assessed at follow-up in each treatment arm, to estimate the standardised mean difference (SMD) between treatment arms. SMD was used, as investigators used heterogeneous methods to assess individual outcomes. If a meta-analysis was not possible or was not appropriate, we narratively synthesised studies. The quality of the evidence was assessed using the GRADE approach with the GRADE profiler.

MAIN RESULTS

We included 23 studies in this review, involving a total of 1372 participants (an addition of 10 studies, 724 participants from the original review); 227 full texts were screened in the update and 377 full texts were screened in the original review leaving 35 publications from a total of 23 unique studies included in the review. We planned to include all cancers, but only studies involving breast, prostate, colorectal and lung cancer met the inclusion criteria. Thirteen studies incorporated a target level of exercise that could meet current recommendations for moderate-intensity aerobic exercise (i.e.150 minutes per week); or resistance exercise (i.e. strength training exercises at least two days per week).Adherence to exercise interventions, which is crucial for understanding treatment dose, is still reported inconsistently. Eight studies reported intervention adherence of 75% or greater to an exercise prescription that met current guidelines. These studies all included a component of supervision: in our analysis of BCTs we designated these studies as 'Tier 1 trials'. Six studies reported intervention adherence of 75% or greater to an aerobic exercise goal that was less than the current guideline recommendations: in our analysis of BCTs we designated these studies as 'Tier 2 trials.' A hierarchy of BCTs was developed for Tier 1 and Tier 2 trials, with programme goal setting, setting of graded tasks and instruction of how to perform behaviour being amongst the most frequent BCTs. Despite the uncertainty surrounding adherence in some of the included studies, interventions resulted in improvements in aerobic exercise tolerance at eight to 12 weeks (SMD 0.54, 95% CI 0.37 to 0.70; 604 participants, 10 studies; low-quality evidence) versus usual care. At six months, aerobic exercise tolerance was also improved (SMD 0.56, 95% CI 0.39 to 0.72; 591 participants; 7 studies; low-quality evidence).

AUTHORS' CONCLUSIONS

Since the last version of this review, none of the new relevant studies have provided additional information to change the conclusions. We have found some improved understanding of how to encourage previously inactive cancer survivors to achieve international physical activity guidelines. Goal setting, setting of graded tasks and instruction of how to perform behaviour, feature in interventions that meet recommendations targets and report adherence of 75% or more. However, long-term follow-up data are still limited, and the majority of studies are in white women with breast cancer. There are still a considerable number of published studies with numerous and varied issues related to high risk of bias and poor reporting standards. Additionally, the meta-analyses were often graded as consisting of low- to very low-certainty evidence. A very small number of serious adverse effects were reported amongst the studies, providing reassurance exercise is safe for this population.

Feasibility of Mind-Body Movement Programs for Cancer Survivors

PURPOSE/OBJECTIVES

To evaluate mind-body movement exercise (MBME) classes (yoga, tai chi, and Qigong) for cancer survivors. 
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DESIGN

A single-group, repeated-measures design.
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SETTING

The Ohio State University Wexner Medical Center-Arthur G. James Cancer Hospital in Columbus.
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SAMPLE

33 adult cancer survivors, with any cancer diagnosis, participating in MBME classes.
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METHODS

The researchers sought to examine feasibility of multiple data collection time points and data collection measures; acceptability; and changes to physical, emotional, and biometric measures over time, as a result of participation in MBME classes.
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MAIN RESEARCH VARIABLES

Quality of life, sleep, depressive symptomatology, fatigue, stress, upper body strength, gait and balance, body mass index, heart rate, and blood pressure.
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FINDINGS

The current study was feasible because survivors were willing to participate and completed most of the questionnaires. Participants found these classes to be beneficial not only for exercise, but also for social support and social connectedness. Poor sleep quality was consistently reported by participants. MBME classes should be recommended to survivors and are beneficial for oncology practices to offer.
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CONCLUSIONS

Conducting MBME research with cancer survivors is feasible, and participants find the MBME acceptable and a way of addressing health and managing cancer-related symptoms.
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IMPLICATIONS FOR NURSING

Nurses should help patients and caregivers identify locations and times when MBME class participation is possible, assess MBME class participation during each clinic visit to promote continued involvement and to understand if positive effects are occurring, and continue to provide support for MBME classes throughout the survivorship experience.