Jospe M R, Brown R C, Williams S M, Roy M, Meredith-Jones K A, Taylor R W
Department of Human Nutrition University of Otago Dunedin New Zealand.
Department of Medicine University of Otago Dunedin New Zealand.
Obes Sci Pract. 2018 Apr 19;4(3):283-288. doi: 10.1002/osp4.168. eCollection 2018 Jun.
Although monitoring is considered a key component of effective behaviour change, the development of apps has allowed consumers to constantly evaluate their own diet, with little examination of what this might mean for eating behaviour. The aim of this study was to investigate whether self-monitoring of diet using the app MyFitnessPal or daily self-weighing increases the reported occurrence of eating disorders in adults with overweight/obesity following a weight loss programme.
Two hundred fifty adults with body mass index ≥ 27 kg/m received diet and exercise advice and were randomized to one of four monitoring strategies (daily self-weighing, MyFitnessPal, brief monthly consults or self-monitoring hunger) or control for 12 months. The Eating Disorder Examination Questionnaire 6.0 was used to assess eating disorder symptoms and behaviours for the previous 28 d at 0 and 12 months.
There were no significant differences in the global Eating Disorder Examination Questionnaire score or the subscales between those in the four monitoring groups and the control at 12 months (all ≥ 0.164), nor were there differences in binge eating, self-induced vomiting, laxative misuse or excessive exercise at 12 months ( ≥ 0.202). The overall prevalence of one or more episodes of binge eating was 53.6% at baseline and 50.6% at 12 months, with no change over time ( = 0.662).
There was no evidence that self-monitoring, including using diet apps like MyFitnessPal or daily self-weighing, increases the reported occurrence of eating disorder behaviours in adults with overweight/obesity who are trying to lose weight.
尽管监测被认为是有效行为改变的关键组成部分，但应用程序的发展使消费者能够持续评估自己的饮食，而很少有人研究这对饮食行为可能意味着什么。本研究的目的是调查使用MyFitnessPal应用程序自我监测饮食或每日自我称重是否会增加超重/肥胖成年人在减肥计划后报告的饮食失调发生率。
250名体重指数≥27kg/m²的成年人接受了饮食和运动建议，并被随机分配到四种监测策略（每日自我称重、MyFitnessPal、每月简短咨询或自我监测饥饿感）之一或作为对照组，为期12个月。使用饮食失调检查问卷6.0在0个月和12个月时评估前28天的饮食失调症状和行为。
在12个月时，四个监测组与对照组在饮食失调检查问卷总分或各子量表上均无显著差异（所有p≥0.164），在12个月时暴饮暴食、自我催吐、滥用泻药或过度运动方面也无差异（p≥0.202）。暴饮暴食发作一次或多次的总体患病率在基线时为53.6%，在12个月时为50.6%，随时间无变化（p = 0.662）。
没有证据表明自我监测，包括使用MyFitnessPal等饮食应用程序或每日自我称重，会增加试图减肥的超重/肥胖成年人报告的饮食失调行为发生率。
