TY -非盟的华纳、米利暗盟——Martin-Diener,伊娃盟——Braun-Fahrlander夏洛特AU -鲍尔,Georg AU -马丁,Brian W PY - 2009 DA - 2009/7/28 TI -活跃的网上的有效性,一个量身定制的体力活动干预,在真实的环境中:随机对照试验乔- J地中海互联网Res SP - e23六世- 11 - 3 KW -有效性KW -定制的干预KW -成人KW -互联网KW -身体活动AB -背景:需要采取有效的干预措施来减少慢性疾病的流行。互联网有潜力以相对较低的成本为大量人群提供个人建议。目的:研究的重点是基于网络的针对性体育活动干预。主要研究问题是(1)与非量身定制的网站相比，在线活动在现实生活环境中提高一般人群自我报告和客观测量的身体活动水平方面的效果如何?(2)随机研究招募的受访者与主动在线的自发用户是否存在差异，这两组之间的有效性有何差异?(3)使用Active-online的频率和持续时间对身体活动行为的变化有什么影响?方法:通过不同媒体渠道招募的志愿者完成了基于网络的基线调查，并被随机分为在线活动(干预组)和非定制网站(对照组)。此外，主动用户是直接从Active-online网站招募的。在一组参与者中，使用加速度计客观地测量身体活动。 Follow-up assessments took place 6 weeks (FU1), 6 months (FU2), and 13 months (FU3) after baseline. Results: A total of 1531 respondents completed the baseline questionnaire (intervention group n = 681, control group n = 688, spontaneous users n = 162); 133 individuals had valid accelerometer data at baseline. Mean age of the total sample was 43.7 years, and 1146 (74.9%) were women. Mixed linear models (adjusted for sex, age, BMI category, and stage of change) showed a significant increase in self-reported mean minutes spent in moderate- and vigorous-intensity activity from baseline to FU1 (coefficient = 0.14, P = .001) and to FU3 (coefficient = 0.19, P < .001) in all participants with no significant differences between groups. A significant increase in the proportion of individuals meeting the HEPA recommendations (self-reported) was observed in all participants between baseline and FU3 (OR = 1.47, P = .03), with a higher increase in spontaneous users compared to the randomized groups (interaction between FU3 and spontaneous users, OR = 2.95, P = .02). There were no increases in physical activity over time in any group for objectively measured physical activity. A significant relation was found between time spent on the tailored intervention and changes in self-reported physical activity between baseline and FU3 (coefficient = 1.13, P = .03, intervention group and spontaneous users combined). However, this association was no longer significant when adjusting for stage of change. Conclusions: In a real-life setting, Active-online was not more effective than a nontailored website in increasing physical activity levels in volunteers from the general population. Further research may investigate ways of integrating Web-based physical activity interventions in a wider context, for example, primary care or workplace health promotion. SN - 1438-8871 UR - //www.mybigtv.com/2009/3/e23/ UR - https://doi.org/10.2196/jmir.1179 UR - http://www.ncbi.nlm.nih.gov/pubmed/19666456 DO - 10.2196/jmir.1179 ID - info:doi/10.2196/jmir.1179 ER -