@Article{信息:doi 10.2196 / / jmir。3199，作者=“丹尼森，劳拉和莫里森，琳恩和劳埃德，斯科特和菲利普斯，道恩和斯图尔特，贝斯和威廉姆斯，莎拉和布拉德伯里，凯瑟琳和罗德里克，保罗和默里，伊丽莎白和米奇，苏珊和利特尔，保罗和亚德利，露西”，标题=“简短的电话支持提高了基于网络的体重管理干预的参与度吗?随机对照试验”，期刊=“J Med Internet Res”，年=“2014”，月=“3”，日=“28”，卷=“16”，数=“3”，页数=“e95”，关键词=“减肥;肥胖;互联网;依从性;行为;背景:最近的研究表明，基于网络的干预是很有前途的体重管理方法，但他们也发现了次优使用的困难。文献表明，为网站用户提供一定程度的人力支持可能会提高使用率和结果。目的:我们在社区环境中传播POWeR(“积极在线减肥”)基于网络的体重管理干预。 POWeR consisted of weekly online sessions that emphasized self-monitoring, goal-setting, and cognitive/behavioral strategies. Our primary outcome was intervention usage and we investigated whether this was enhanced by the addition of brief telephone coaching. We also explored group differences in short-term self-reported weight loss. Methods: Participants were recruited using a range of methods including targeted mailouts, advertisements in the local press, notices on organizational websites, and social media. A total of 786 adults were randomized at an individual level through an online procedure to (1) POWeR only (n=264), (2) POWeR plus coaching (n=247), or (3) a waiting list control group (n=275). Those in the POWeR plus coaching arm were contacted at approximately 7 and 28 days after randomization for short coaching telephone calls aimed at promoting continued usage of the website. Website usage was tracked automatically. Weight was assessed by online self-report. Results: Of the 511 participants allocated to the two intervention groups, the median number of POWeR sessions completed was just one (IQR 0-2 for POWeR only, IQR 0-3 for POWeR plus coach). Nonetheless, a substantial minority completed at least the core three sessions of POWeR: 47 participants (17.8{\%}, 47/264) in the POWeR-only arm and 64 participants (25.9{\%}, 64/247) in the POWeR plus coaching arm. Participants in the POWeR plus coaching group persisted with the intervention for longer and were 1.61 times more likely to complete the core three sessions than the POWeR-only group ($\chi$21=4.93; OR 1.61, 95{\%} CI 1.06-2.47; n=511). An intention-to-treat analysis showed between-group differences in weight loss (F2,782=12.421, P<.001). Both intervention groups reported more weight loss than the waiting list control group. Weight loss was slightly, but not significantly, greater in the POWeR plus coaching group. A large proportion of participants assigned to POWeR plus coaching refused phone calls or were not contactable (57.9{\%}, 143/247). Exploratory analyses identified health and sociodemographic differences between those who did and did not engage in coaching when it was made available to them. Users who engaged with coaching used the intervention more and lost more weight than those who did not. Conclusions: In common with most Web-based intervention studies, usage of POWeR was suboptimal overall. However, our findings suggest that supplementing Web-based weight management with brief human support could improve usage and outcomes in those who take it up. Trial Registration: International Standard Randomized Controlled Trial Number (ISRCTN): 98176068; http://www.controlled-trials.com/ISRCTN98176068 (Archived by WebCite at http://www.webcitation.org/6OKRjM2oy). ", issn="14388871", doi="10.2196/jmir.3199", url="//www.mybigtv.com/2014/3/e95/", url="https://doi.org/10.2196/jmir.3199", url="http://www.ncbi.nlm.nih.gov/pubmed/24681761" }