Department of Psychiatry and Human Behavior, Warren Alpert Medical School, Brown University.
Department of Clinical and Health Psychology, College of Public Health and Health Professions, University of Florida.
Health Psychol. 2022 Dec;41(12):938-945. doi: 10.1037/hea0001224. Epub 2022 Sep 1.
Little is known about week-to-week recovery from regains following a behavioral weight loss intervention (BWLI). This study examined changes in behaviors, cognitions, and moods associated with transitioning from weight regain to weight loss during the nine-month weight loss maintenance period after a three-month Internet-based BWLI.
Participants ( = 68) self-weighed daily via "smart" scales and answered 40 weekly questionnaires about their weight-related behaviors and psychological states. Mixed models were used to (a) determine whether weight gain in a given week predicted changes in weight, behaviors (e.g., self-monitoring), and psychological states (e.g., mood, temptation) the following week and to (b) compare back-to-back weeks when individuals recovered from weight gain (gained in the first week and lost in the second) versus those in which they gained both weeks.
Weight gain in a given week predicted greater weight gain and greater report of behaviors and psychological states associated with weight gain the following week. Back-to-back weeks when individuals switched from gaining to losing were few (5%) compared with weeks when individuals continued gaining (60%). Switching from gaining to losing was associated with greater physical activity during the initial weight gain week and greater self-reported behaviors/cognitions consistent with weight loss (e.g., greater calorie self-monitoring, greater importance of "staying on track") during the following week.
Engagement in more weight loss consistent behaviors and more favorable ratings of key psychological variables were associated with the rare shifts from gaining to losing. Future research should investigate interventions to help individuals quickly recover from weight regain. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
关于行为体重减轻干预（BWLI）后体重恢复的每周恢复情况，知之甚少。本研究在 BWLI 后三个月的体重减轻维持期的九个月内，检查了与从体重恢复过渡到体重减轻相关的行为、认知和情绪的变化。
参与者（n=68）通过“智能”秤每天自我称重，并回答 40 个关于其体重相关行为和心理状态的每周问卷。混合模型用于：（a）确定给定周的体重增加是否预测了下周体重、行为（例如自我监测）和心理状态（例如情绪、诱惑）的变化；（b）比较个体从体重增加中恢复的连续两周（第一周增加，第二周减少）与连续两周增加的情况。
给定周的体重增加预测了下周体重增加更大，以及与体重增加相关的行为和心理状态的报告更大。个体从增加体重转变为减轻体重的连续两周情况很少（5%），而个体继续增加体重的情况则较多（60%）。从增加体重转变为减轻体重与初始体重增加周内更大的体力活动以及以下周内更大的自我报告行为/认知（例如，更多的卡路里自我监测、更重视“保持在轨道上”）相关。
参与更多与体重减轻一致的行为和更有利的关键心理变量评分与从增加体重到减轻体重的罕见转变相关。未来的研究应该调查干预措施，以帮助个体快速从体重恢复中恢复。
