Long-term tracking of physical activity behaviors in women: the WIN Study.
Long-term tracking of physical activity behaviors in women: the WIN Study.
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DOI：
10.1249/mss.0b013e3181e61937
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发表时间：
2011-01
影响因子：
4.1
通讯作者：
Haskell WL
中科院分区：
文献类型：
--
作者：
Morrow JR Jr;Bain TM;Frierson GM;Trudelle-Jackson E;Haskell WL
兴趣在于社区生活的妇女的普遍性，满足2008年卫生和人类服务部的身体活动指南。目的是报告长期（长达125周）跟踪身体活动行为的流行率和稳定性，并使用不同的测量方法比较自我报告的身体活动行为。WIN研究跟踪了社区生活女性的几乎实时的身体活动行为。在基线时，918名妇女开始每周通过互联网报告身体活动行为，访问安全的互联网网站并回答8个关于前一周身体活动行为的问题。措施包括温和，剧烈，步行和加强活动的天数和分钟数，每周记录计步器步数。符合体力活动指南的患病率取决于所使用的标准。监测期间的每周平均值表明，25%报告中度体力活动≥150分钟，47%报告剧烈体力活动≥75分钟，57%报告中度至剧烈体力活动≥150分钟，63%进行≥500 MET-分钟的体力活动，15%报告每周≥2天的强化活动，39%的人报告每周≥7500步。α系数（≥.97）表明所有指标的体力活动行为稳定。在各种报告方法中，据估计，在长期随访期间，这些社区生活的妇女中约有50%或更多的人每周进行足够的身体活动，以获得健康益处。自我报告的身体活动行为是稳定的，在这些社区生活的妇女在很长一段时间内没有参加一个特定的身体活动干预。
Interest lies in the prevalence of community-living women meeting 2008 Department of Health and Human Services physical activity guidelines across time. The purpose was to report prevalence and stability of long-term (up to 125 weeks) tracking of physical activity behaviors and compare self-reported physical activity behaviors using different measures. The WIN study tracks nearly real-time physical activity behaviors in community-living women. At baseline, 918 women began weekly Internet reporting of physical activity behaviors, accessing a secure Internet site and answering 8 questions about physical activity behaviors for the previous week. Measures included days and minutes of moderate, vigorous, walking, and strengthening activities, and pedometer steps recorded weekly. Prevalence of meeting physical activity guidelines depended on the criterion used. Weekly averages across the surveillance period indicated 25% reported ≥150 mins of moderate physical activity, 47% reported ≥75 mins of vigorous physical activity, 57% reported ≥150 mins of moderate-to-vigorous physical activity, 63% conducted ≥500 MET-mins of physical activity, 15% reported ≥2 days of strengthening activities per week, and 39% reported ≥7500 steps per week. Alpha coefficients (≥.97) indicated stable physical activity behaviors across all measures. Across reporting methods, it is estimated that approximately 50% or more of these community-living women engage in sufficient physical activity for health benefits weekly across long-term follow-up. Self-report physical activity behaviors are stable across long periods in these community-living women not participating in a specific physical activity intervention.