Identified mediators for medium-/long-term weight control were higher levels of autonomous motivation , self-efficacy/barriers , self-regulation skills ( such as self-monitoring ) , flexible eating restraint , and positive body image .
For physical activity , significant putative mediators were high autonomous motivation , self-efficacy , and use of self-regulation skills .
For dietary intake , the evidence was much less clear , and no consistent mediators were identified .
Conclusions This is the first systematic review of mediational psychological mechanisms of successful outcomes in obesity-related lifestyle change interventions .
Despite limited evidence , higher autonomous motivation , self-efficacy , and self-regulation skills emerged as the best predictors of beneficial weight and physical activity outcomes ; for weight control , positive body image and flexible eating restraint may additionally improve outcomes .
These variables represent possible targets for future lifestyle interventions in overweight/obese population
Background Relapse is high in lifestyle obesity interventions involving behavior and weight change .
Identifying mediators of successful outcomes in these interventions is critical to improve effectiveness and to guide approaches to obesity treatment , including re source allocation .
This article review s the most consistent self-regulation mediators of medium- and long-term weight control , physical activity , and dietary intake in clinical and community behavior change interventions targeting overweight/obese adults .
Temporal Aspects of Psychosocial Predictors of Increased Fruit and Vegetable Intake in Adults with Severe Obesity: Mediation by Physical Activity
Effective and reliable obesity treatments are lacking because of a poor underst and ing of the health behavior change process . Community-based organizations with the capacity to train existing staff members are particularly well-positioned to implement evidence -based treatment protocol s to impact obesity-related behaviors such as unhealthy eating and lack of physical activity . The aim of this study was to assess temporal aspects of psychosocial predictors ( self-regulation , mood , and self-efficacy ) on increased fruit and vegetable intake in adults with severe obesity , while also accounting for mediation by physical activity volume . A 6-month , r and omized field investigation was conducted . Severely obese adults volunteered for behavioral support of physical activity coupled with nutrition education ( n = 73 ) or cognitive-behavioral methods for nutrition change ( n = 71 ) . Improvements in self-regulation , mood , self-efficacy , fruit and vegetable intake ( FV ) , and physical activity ( PA ) were significant , with significantly greater self-regulation at month 6 for the cognitive-behavioral group . Increase in FV was predicted by changes in the above psychosocial variables over 6 months , with mood change over 3 months also a significant predictor . Change in PA mediated the above relationships , with a reciprocal effect between changes in PA and FV . Findings have implication s for the large-scale behavioral treatment of obesity
Identified mediators for medium-/long-term weight control were higher levels of autonomous motivation , self-efficacy/barriers , self-regulation skills ( such as self-monitoring ) , flexible eating restraint , and positive body image .
For physical activity , significant putative mediators were high autonomous motivation , self-efficacy , and use of self-regulation skills .
For dietary intake , the evidence was much less clear , and no consistent mediators were identified .
Conclusions This is the first systematic review of mediational psychological mechanisms of successful outcomes in obesity-related lifestyle change interventions .
Despite limited evidence , higher autonomous motivation , self-efficacy , and self-regulation skills emerged as the best predictors of beneficial weight and physical activity outcomes ; for weight control , positive body image and flexible eating restraint may additionally improve outcomes .
These variables represent possible targets for future lifestyle interventions in overweight/obese population
Background Relapse is high in lifestyle obesity interventions involving behavior and weight change .
Identifying mediators of successful outcomes in these interventions is critical to improve effectiveness and to guide approaches to obesity treatment , including re source allocation .
This article review s the most consistent self-regulation mediators of medium- and long-term weight control , physical activity , and dietary intake in clinical and community behavior change interventions targeting overweight/obese adults .