TY -的AU -沃森,爱丽丝AU -比克摩尔,盖非盟- Cange,艾比非盟- Kulshreshtha Ambar盟——Kvedar约瑟夫PY - 2012 DA - 2012/01/26 TI -一个基于互联网的虚拟教练促进体重超重的成年人体育锻炼依从性:随机对照试验乔- J地中海互联网Res SP - e1六世- 14 - 1 KW -活动监视KW -计步器KW -肥胖KW -身体质量指数KW -远程医疗KW -远程医疗AB -背景:解决肥胖流行病需要制定有效的、可扩展的干预措施。计步器和基于网络的程序对提高运动水平是有益的，但可以通过增加非人类指导来增强。目的:我们假设虚拟教练可以通过步数增加超重或肥胖个体的活动水平，而不仅仅是使用计步器和网站观察到的效果。方法:我们从波士顿大都市区招募了70名体重指数(BMI)在25至35 kg/m2之间的参与者。参与者被分配到两个研究组中的一个，并被要求佩戴计步器并访问网站查看步数。参与干预的参与者还会见了一个虚拟教练，一个在他们的家用电脑上运行的自动动画计算机代理，设定目标，并提供个性化反馈。数据于2008年收集和分析。主要结果测量是在为期12周的研究中活动水平的变化(步数的百分比变化)，分为四个为期3周的时间段。主要的次要结局是BMI的改变和参与者的满意度。 Results: The mean age of participants was 42 years; the majority of participants were female (59/70, 84%), white (53/70, 76%), and college educated (68/70, 97%). Of the initial 70 participants, 62 completed the study. Step counts were maintained in intervention participants but declined in controls. The percentage change in step count between those in the intervention and control arms, from the start to the end, did not reach the threshold for significance (2.9% vs –12.8% respectively, P = .07). However, repeated measures analysis showed a significant difference when comparing percentage changes in step counts between control and intervention participants over all time points (analysis of variance, P = .02). There were no significant changes in secondary outcome measures. Conclusions: The virtual coach was beneficial in maintaining activity level. The long-term benefits and additional applications of this technology warrant further study. Trial Registration: ClinicalTrials.gov NCT00792207; http://clinicaltrials.gov/ct2/show/NCT00792207 (Archived by WebCite at http://www.webcitation.org/63sm9mXUD) SN - 1438-8871 UR - //www.mybigtv.com/2012/1/e1/ UR - https://doi.org/10.2196/jmir.1629 UR - http://www.ncbi.nlm.nih.gov/pubmed/22281837 DO - 10.2196/jmir.1629 ID - info:doi/10.2196/jmir.1629 ER -