Annesi James J
School of Health Professions, University of Alabama at Birmingham, Birmingham, AL, USA.
Transl Behav Med. 2021 Dec 14;11(12):2071-2080. doi: 10.1093/tbm/ibab074.
Significant cross-sectional associations between mood and weight have been made in women; however, data on associated longitudinal effects and their psychological and behavioral mechanisms are required to inform obesity treatments that mostly have limited success beyond the very short term. Women participating in behavioral obesity treatments were assessed on psychological and behavioral measures, and weight change over 12 months. A treatment focused on physical activity and self-regulation (n = 67) had significantly better improvements than a treatment centered around weight-loss education (n = 64) on measures of mood (overall mood, depression, anxiety), self-regulation, emotional eating, eating behaviors, physical activity, and weight in women with obesity. Incorporating a lagged variable design, 12-month weight loss was significantly predicted (separately) by changes in overall negative mood, depression, and anxiety. When changes in measures of self-regulation, emotional eating, and eating behaviors were sequentially entered as mediators, mood change-weight change relationships were rendered non-significant. Significant mediation paths were: mood change→self-regulation change→weight change, and mood change→self-regulation change→eating behavior change→weight change. They were unaffected by the treatment group. Findings contributed to both theory and obesity intervention architectures via a design sensitive to the dynamic psychological and behavioral changes occurring within weight-loss processes.
女性的情绪与体重之间已发现显著的横断面关联；然而，需要有关相关纵向效应及其心理和行为机制的数据，以便为肥胖治疗提供信息，因为大多数肥胖治疗在短期内取得有限成功后，长期效果不佳。对参与行为性肥胖治疗的女性进行了心理和行为测量评估，以及12个月内的体重变化评估。在肥胖女性中，一项侧重于身体活动和自我调节的治疗（n = 67）在情绪（总体情绪、抑郁、焦虑）、自我调节、情绪化进食、饮食行为、身体活动和体重测量方面的改善明显优于以减肥教育为中心的治疗（n = 64）。采用滞后变量设计，总体负面情绪、抑郁和焦虑的变化（分别）显著预测了12个月的体重减轻。当依次将自我调节、情绪化进食和饮食行为测量的变化作为中介变量纳入时，情绪变化与体重变化之间的关系变得不显著。显著的中介路径为：情绪变化→自我调节变化→体重变化，以及情绪变化→自我调节变化→饮食行为变化→体重变化。这些路径不受治疗组的影响。研究结果通过对减肥过程中发生的动态心理和行为变化敏感的设计，为理论和肥胖干预架构都做出了贡献。
