Behavioral Transitions and Weight Change Patterns Within the PREMIER Trial
Behavioral Transitions and Weight Change Patterns Within the PREMIER Trial
复制标题
DOI：
10.1038/oby.2011.56
复制
发表时间：
2011-08-01
期刊：
影响因子：
6.9
通讯作者：
Ard, Jamy D.
中科院分区：
文献类型：
--
作者：
Bartfield, Jessica K.;Stevens, Victor J.;Ard, Jamy D.
人们对从短期减肥到维持减肥的行为转变知之甚少。我们想确定短期和长期体重减轻以及体重变化模式与干预行为目标之间的关系。该分析包括来自先前发表的PREMIER试验的积极治疗的超重/肥胖参与者（n = 507），该试验是一项为期18个月的多组分生活方式干预，用于降低血压，包括33次干预会议和每日自我监测食物摄入量和身体活动的建议。行为（出勤率，记录的身体活动天数/周，食物记录/周）与6个月和18个月时体重减轻>= 5%之间的关联使用逻辑回归进行了检查。我们使用5种体重变化类别（体重增加、体重稳定、体重减轻然后复发、晚期体重减轻和体重减轻然后维持）来表征样本，并分析对每个类别行为的坚持，用ANOVA比较平均值。参与者在6个月时平均减掉5.3 +/- 5.6 kg，18个月时平均减掉4.0 +/- 6.7 kg（体重的4.96%）。更高的出勤率，食物记录完成和记录的身体活动天数/周与实现5%减肥的几率增加有关。所有体重变化组的行为都随着时间的推移而下降;然而，与其他四组相比，体重减轻/维持组（n = 154）在18个月内每周食物记录数量（48%），每周体力活动记录天数（41.7%）和参加干预会议（12.8%）的统计学显著性下降。与短期减肥相关的行为继续与长期减肥相关，尽管频率较低。最大限度地减少这些行为的下降可能对实现长期减肥很重要。
Little is known about the transition in behaviors from short-term weight loss to maintenance of weight loss. We wanted to determine how short-term and long-term weight loss and patterns of weight change were associated with intervention behavioral targets. This analysis includes overweight/obese participants in active treatment (n = 507) from the previously published PREMIER trial, an 18-month, multicomponent lifestyle intervention for blood pressure reduction, including 33 intervention sessions and recommendations to self-monitor food intake and physical activity daily. Associations between behaviors (attendance, recorded days/week of physical activity, food records/week) and weight loss of >= 5% at 6 and 18 months were examined using logistic regression. We characterized the sample using 5 weight change categories (weight gained, weight stable, weight loss then relapse, late weight loss, and weight loss then maintenance) and analyzed adherence to the behaviors for each category, comparing means with ANOVA. Participants lost an average of 5.3 +/- 5.6 kg at 6 months and 4.0 +/- 6.7 kg (4.96% of body weight) by 18 months. Higher levels of attendance, food record completion, and recorded days/week of physical activity were associated with increasing odds of achieving 5% weight loss. All weight change groups had declines in the behaviors over time; however, compared to the other four groups, the weight loss/maintenance group (n = 154) had statistically less significant decline in number of food records/week (48%), recorded days/week of physical activity (41.7%), and intervention sessions attended (12.8%) through 18 months. Behaviors associated with short-term weight loss continue to be associated with long-term weight loss, albeit at lower frequencies. Minimizing the decline in these behaviors may be important in achieving long-term weight loss.