Impact Evaluation of a Pilot Web-Based Intervention to Increase Physical Activity
Impact Evaluation of a Pilot Web-Based Intervention to Increase Physical Activity
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DOI：
10.4278/ajhp.081216-arb-307
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发表时间：
2011-03-01
影响因子：
2.7
通讯作者：
Petosa, Rick
中科院分区：
文献类型：
--
作者：
Grim, Melissa;Hortz, Brian;Petosa, Rick
目的.这项试点研究的目的是进行为期10周的基于网络的身体活动干预的影响评估。准实验，三组前测、后测设计。美国中西部大型大学。参与者（N = 233）包括注册三门课程的大学生。该研究采用了一个方便的样本，包括基于网络的组（n = 108），体力活动组（n = 64）和一般健康组（n = 61）。网络组接受社会认知理论行为技能建设干预，每周锻炼3天。体力活动组接受锻炼指导，每周参加三次体力活动实验室。对照组给予健康教育。结果变量包括中度和剧烈的体力活动，自我调节，社会支持，自我效能，结果的期望和期望。组间差异在前测和后测采用多重方差分析进行评估。剧烈的体力活动，自我调节和结果期望值的变化显着。网络课程组和体育活动课程组（p <0.01）结论。即使考虑到样本量小和缺乏随机性等限制，基于网络的和传统的身体活动讲座和活动实验室干预措施仍具有上级优势。引起剧烈的身体活动，自我调节和结果期望值的变化比传统的健康课程。(Am J Health Promot 2011;25[4]：227-230.）
Purpose. The purpose of this pilot study was to conduct an impact evaluation of a 10-week Web-based physical activity intervention.Design. Quasi-experimental, three-group pretest, posttest design.Setting. Large Midwestern university.Subjects. Participants (N = 233) included college students registered for three courses. The study employed a convenience sample consisting of a Web-based group (n = 108), a physical activity group (n = 64), and a general health group (n = 61).Intervention. The Web-based group received a Social Cognitive Theory behavioral skill-building intervention and exercised 3 days per week in their leisure time. The physical activity group received exercise instruction and was required to attend three physical activity labs per week. The comparison group received health instruction.Measures. Outcome variables included moderate and vigorous physical activity, self-regulation, social support, self-efficacy, and outcome expectations and expectancies.Analysis. Differences between groups were assessed at pretest and posttest using multiple analyses of variance.Results. Vigorous physical activity, self-regulation, and outcome expectancy value changed significantly in. the Web-based and physical activity course groups (p < .01)Conclusions. Even with consideration of limitations such as small sample size and lack of randomization, the Web-based and traditional physical activity lecture and activity lab interventions were superior in. eliciting changes in vigorous physical activity, self-regulation, and outcome expectancy value than a traditional health course. (Am J Health Promot 2011;25[4]:227-230.)