VanWormer Jeffrey J, Martinez Anna M, Martinson Brian C, Crain A L, Benson Gretchen A, Cosentino Daniel L, Pronk Nicolaas P
Minneapolis Heart Institute Foundation, Minneapolis, Minnesota 55407, USA.
Am J Prev Med. 2009 Jan;36(1):70-3. doi: 10.1016/j.amepre.2008.09.022. Epub 2008 Oct 31.
Frequent self-weighing has been proposed as an adjuvant strategy to promote weight loss. Not all experts agree on its utility, and the literature supporting its effectiveness is somewhat limited by methodologic shortcomings related to the subjective assessment of self-weighing frequency.
A prospective cohort design was utilized to examine 100 participants enrolled in a weight-loss trial that encouraged frequent, objectively measured self-weighing at home. Measurements were made at pretreatment and at follow-up visits at 6 and 12 months.
SETTING/PARTICIPANTS: Participants were employed, obese adults enrolled in the Weigh By Day trial. Study data were collected between October 2005 and May 2007.
The intervention consisted of a 6-month behavioral weight-loss program that employed telephone counseling, a written manual, and a home telemonitoring scale.
The primary outcomes of interest were body weight and clinically meaningful weight loss (i.e., > or =5%). Analyses were performed in March 2008.
Self-weighing was a significant predictor of body weight over time. Participants lost about 1 extra pound for every 11 days they self-weighed during treatment. In addition, participants who self-weighed at least weekly were 11 times more likely to lose at least 5% of their pretreatment weight after 6 months. Improvements attenuated after 12 months.
Self-weighing may be a strategy to enhance behavioral weight-loss programs. Weekly self-weighing seems to be a reasonable, evidence-supported recommendation for successful weight loss, but more research is warranted to determine the independent contribution of self-weighing to successful weight loss, as well as its potential risk of negative psychological impact.
频繁自我称重已被提议作为促进减肥的辅助策略。并非所有专家都认同其效用，且支持其有效性的文献在一定程度上因自我称重频率主观评估相关的方法学缺陷而受到限制。
采用前瞻性队列设计，对100名参加减肥试验的参与者进行研究，该试验鼓励在家中进行频繁的、客观测量的自我称重。在治疗前以及6个月和12个月的随访时进行测量。
设置/参与者：参与者为受雇的肥胖成年人，参加了“每日称重”试验。研究数据于2005年10月至2007年5月收集。
干预包括一个为期6个月的行为减肥计划，该计划采用电话咨询、书面手册和家庭远程监测秤。
主要关注的结果是体重和具有临床意义的体重减轻（即≥5%）。分析于2008年3月进行。
随着时间推移，自我称重是体重的一个重要预测因素。在治疗期间，参与者每自我称重11天，体重就会额外减轻约1磅。此外，至少每周自我称重一次的参与者在6个月后体重减轻至少达到治疗前体重5%的可能性是其他人的11倍。12个月后改善情况有所减弱。
自我称重可能是增强行为减肥计划的一种策略。每周自我称重似乎是一个合理的、有证据支持的成功减肥建议，但仍需要更多研究来确定自我称重对成功减肥的独立贡献，以及其潜在的负面心理影响风险。
