Yoga's impact on risk and protective factors for disordered eating: a pilot prevention trial

Eat Breathe Thrive: an interpretative phenomenological analysis of a yoga-based eating disorder intervention

A growing body of evidence suggests that yoga-based interventions might aid in the prevention and treatment of eating disorders. The current qualitative study used Interpretative Phenomenological Analysis (IPA) to analyze the nature and degree of impact of a yoga and mindfulness-based eating disorder prevention intervention Eat Breath Thrive (EBT). Data was collected via semi-structured interviews with 16 participants over the age of 18 who took part in the EBT program between 2018 and 2022. Using IPA methodology, and after several rounds of coding, emergent themes were interpreted and organized to develop a theoretical model explaining the mechanism of change experienced and described by EBT participants. The resulting model outlines an experiential progression from psychoeducation and skill development/practice to increased mindful awareness, and empowered state experiences which led to the following outcomes: independent positive action, self-initiated positive state experiences, and increased embodied well-being. Participants reported increased self-compassion and self-acceptance, with decreased emphasis on disordered eating behaviors. Qualitative data is necessary for understanding why yoga works, from an experiential perspective. This study adds to the new, and rapidly expanding body of research supporting the positive effects of yoga and mindfulness on the prevention and treatment of eating disorders.

Associations between mind-body practice engagement and diet quality: Exploring the mediating roles of eating behaviour traits and regulation styles for eating behaviours in the PREDISE study

While engaging in Mind-Body Practices (MBPs) may be related to better diet quality, its association with eating behaviours is unclear. This cross-sectional study explores whether eating behaviour traits and regulation style of eating behaviours mediate the association between MBP engagement and diet quality. A total of 418 women and 482 men, aged between 18 and 65 years and recruited as part of the PREDISE study cohort, reported whether they currently practice one or more MBP (e.g., yoga or meditation). Canadian Healthy Eating Index (C-HEI) was calculated from three 24h dietary recalls. Intuitive Eating Scale (IES-2), and Regulation of Eating Behaviour Scale were completed online. Mann-Whitney tests were conducted to compare C-HEI scores of individuals who currently engage in MBPs (practitioners) to those who do not (non-practitioners). Multiple regression analyses and bootstrapping were performed to test whether eating behaviours and regulation style of eating behaviours mediate the association between MBPs and diet quality. Overall, 88 women and 43 men were practitioners. They had higher C-HEI scores than non-practitioners (62.9 ± 13.0 vs. 55.6 ± 14.3; p = 0.001). Parallel mediation model showed significant indirect effects of the IES-2 subscale relating to Body-Food Choice Congruence (β = 1.57, SE = 0.41, 95% CI: 0.86, 2.43), self-determined motivation (β = 1.51, SE = 0.39, 95% CI:0.81, 2.32) and non-self-determined motivation (β = 0.39, SE = 0.21, 95% CI: 0.03, 0.85) on the association between practitioner status and C-HEI. These findings suggest that the current practice of MBPs is associated with better diet quality, mainly through practitioners' higher intuitive eating skills and more self-determined regulation of eating behaviours. Further studies should investigate the potential impacts of MBPs on the development and maintenance of positive eating habits.

Efficacy of Eat Breathe Thrive: A randomized controlled trial of a yoga-based program

Evidence positions yoga as a promising intervention for enhancing positive embodiment and supporting the prevention of, and recovery from, eating disorders (EDs) by reducing ED symptomatology and building skills that facilitate an ongoing, embodied sense of wellbeing. However, yoga-based programs are few and rigorous literature on their efficacy is limited. This study examined the efficacy and feasibility of a yoga-based program called Eat Breathe Thrive (EBT) which aims to prevent EDs and support embodiment. Participants (N = 168, 93.5 % women) from a community sample in the United States and United Kingdom, ages 18-65, were randomly allocated to a 2-h, 7-week EBT program or waitlist-control condition. Compared to controls, EBT participants experienced significant decreases in ED behaviors, depression, and difficulties regulating emotions. They reported significantly greater use of mindfulness skills, such as interoceptive awareness, mindful self-care, and mindful eating. After a single session, participants reported immediate improvement in their sense of well-being, indicating increased state positive embodiment. Most effects were sustained at 6-month follow-up. The majority of individuals attended most sessions. Self-reported treatment integrity was excellent. Directions for future research are proposed. Results support the efficacy and feasibility of an integrated yoga intervention that fosters positive ways of inhabiting the body.

Prevention of eating disorders: 2020 in review

Fifteen prevention-related publications in Eating Disorders during 2020 are reviewed. Two models frame this analysis: (1) the Mental Health Intervention Spectrum: health promotion → types of prevention → case identification and referral → treatment; and (2) parsing phases of prevention into a cycle: rationale, theory, and methodology, shaped by critical, integrative reviews → clarification of risk and protective factors → program innovation and feasibility studies → efficacy and effectiveness research → program dissemination. In this cycle the first two phases and the last phase inform advocacy for social policies supporting prevention. Ten articles comprising a special issue on yoga demonstrate the value of investing in translational prevention science that acknowledges (a) embodying experiences as a broad category of protective factors; (b) the utility of multidimensional theoretical models; and (c) social justice issues that advocacy efforts must address to make programs widely and equitably available. Other articles reviewed show, for example, that studies of emotion dysregulation and emotional eating are needed to enter a prevention cycle that moves us beyond body image (or weight/shape) concerns in defining high-risk groups and developing indicated prevention. Finally, implications of the absence of efficacy, effectiveness, dissemination, and advocacy studies are discussed.

Yoga practice among ethnically/racially diverse emerging adults: Associations with body image, mindful and disordered eating, and muscle-enhancing behaviors

BACKGROUND

This study explores cross-sectional associations between yoga and body image, mindful eating, disordered eating, and muscle-enhancing behaviors among a population-based sample of ethnically/racially diverse emerging adults.

METHOD

An ethnically/racially diverse population-based sample of 1,568 emerging adults (18-26 years) completed surveys as part of EAT 2010-2018 (Eating and Activity over Time). Models were adjusted for sociodemographic characteristics and body mass index (BMI).

RESULTS

Practicing yoga at least 30 min/week was reported by 12.7% (n = 210) of the sample. Yoga practitioners had higher levels of mindful eating than those not practicing yoga. Although effect sizes were small, yoga practitioners were more likely than non-yoga practitioners to use steroids (3.8 vs. 0.7%, p < .001, h = 0.22) or protein powder/shakes (35.1 vs. 25.3%, p < .010, h = 0.21) to increase their muscle size/tone. Body satisfaction, unhealthy weight control behaviors, and binge eating tended to be similar among yoga practitioners and non-yoga practitioners. There was a significant interaction between BMI and yoga in predicting body satisfaction with a trend toward a positive impact among yoga practitioners at higher BMI values. Interactions between yoga practice and all body image attitudes and behaviors across gender and ethnicity/race were not statistically significant.

DISCUSSION

Young people from diverse ethnic/racial backgrounds who practice yoga are more likely to engage in mindful eating but have equal or elevated levels of unhealthy body image attitudes and behaviors as compared to non-yoga practitioners. Further research should explore how yoga is best taught and practiced to ensure that it is beneficial for body image and related behaviors.

Yoga and eating disorder prevention and treatment: A comprehensive review and meta-analysis

Yoga is frequently used in conjunction with standard treatment approaches for eating disorders. However, yoga's efficacy and effectiveness in preventing and treating eating disorders has remained unclear. The aim of this comprehensive review and meta-analysis is to review the extant literature and assess the effects of yoga in the prevention and intervention of eating disorder symptoms and correlates in both clinical and non-clinical populations. Studies assessing yoga and its effect on eating disorder symptoms and/or body image as related to disordered eating, were eligible for inclusion. The comprehensive review details correlational, non-controlled, non-randomized controlled, and yoga comparison studies. For the meta-analysis, only randomized controlled trials comparing a yoga-based intervention to a non-yoga control group were included. In total, 43 studies are included in this review, with 11 trials involving 754 participants included in the meta-analysis. Results of the comprehensive review and meta-analyses results indicated yoga interventions demonstrated a small, significant effect on global eating disorder psychopathology, a moderate-to-large effect on binge eating and bulimia, and a small effect on body image concerns, as compared to the control conditions. There was no statistically significant effect on dietary restraint in either direction. Additionally, results indicated a small-to-moderate effect on a composite measure of eating disorder-related constructs. These findings suggest that yoga-based interventions may be an effective approach supporting the prevention and treatment of eating disorders.