TY -的AU -约翰斯顿,珍妮D AU -梅西,安妮·P AU - DeVaneaux Celeste PY - 2012 DA - 2012/09/20 TI -创新在减肥计划:三维虚拟世界的方法乔- J地中海互联网Res SP - e120六世- 14 - 5 KW -虚拟世界KW -肥胖KW -减肥计划KW -互联网技术KW -行为改变AB -背景:肥胖的上升趋势要求创新的减肥计划。虽然以行为为基础的面对面项目已被证明是最有效的，但它们昂贵且往往难以实现。互联网或基于网络的减肥计划已经扩大了覆盖面，但可能缺乏减肥和维持体重的关键品质，如人际互动、社会支持和参与。与Web技术相比，虚拟现实技术通过直接支持参与和主动学习，提供了独特的行为干预功能。目的:探讨虚拟世界减肥计划相对于减肥和行为改变的有效性。方法:我们收集了参加面对面或虚拟世界减肥计划的超重人群(N = 54)的数据。体重、体重指数(BMI)、体重变化百分比和健康行为(即减肥自我效能感、体育活动自我效能感、自我报告的体育活动以及水果和蔬菜摄入量)在12周计划前后进行了评估。采用重复测量分析来检测组间和时间间的差异。结果:共有54名BMI为32 (SD 6.05) kg/m2的参与者参加了这项研究，每组的退出率为13%(虚拟世界组:5/38;面对面小组:3/24)。 Both groups lost a significant amount of weight (virtual world: 3.9 kg, P < .001; face-to-face: 2.8 kg, P = .002); however, no significant differences between groups were detected (P = .29). Compared with baseline, the virtual-world group lost an average of 4.2%, with 33% (11/33) of the participants losing a clinically significant (≥5%) amount of baseline weight. The face-to-face group lost an average of 3.0% of their baseline weight, with 29% (6/21) losing a clinically significant amount. We detected a significant group × time interaction for moderate (P = .006) and vigorous physical activity (P = .008), physical activity self-efficacy (P = .04), fruit and vegetable consumption (P = .007), and weight loss self-efficacy (P < .001). Post hoc paired t tests indicated significant improvements across all of the variables for the virtual-world group. Conclusions: Overall, these results offer positive early evidence that a virtual-world-based weight loss program can be as effective as a face-to-face one relative to biometric changes. In addition, our results suggest that a virtual world may be a more effective platform to influence meaningful behavioral changes and improve self-efficacy. SN - 1438-8871 UR - //www.mybigtv.com/2012/5/e120/ UR - https://doi.org/10.2196/jmir.2254 UR - http://www.ncbi.nlm.nih.gov/pubmed/22995535 DO - 10.2196/jmir.2254 ID - info:doi/10.2196/jmir.2254 ER -