使用计步器来增加身体活动和改善健康:一个系统的审查
Dena M Bravata1, Crystal Smith-Spangler, Vandana Sundaram
1Center for Primary Care and Outcomes Research, Stanford University, Stanford, California, USA. dbravata@stanford.edu
JAMA
|November 22, 2007
概括
计步器的使用显著增加了身体活动,并改善了健康结果,如身体质量指数和成人血压. 设定每日一步目标可以增强这些好处,尽管长期耐用性需要进一步研究.
科学领域:
- 运动生理学 运动生理学
- 预防医学 预防医学
- 行为健康 行为健康
背景情况:
- 计步器是激发身体活动的流行的工具,但其有效性的证据有限.
- 这项研究评估了计步仪对成年人身体活动和健康的影响.
研究的目的:
- 评估计步器使用与身体活动水平之间的关联.
- 评估计步仪对身体质量指数和血压等健康结果的影响.
主要方法:
- 一项对26项涉及2767名成人门诊患者的研究 (8项RCT,18项观察性) 的系统审查和元分析.
- 提取了干预,参与者,每天的步骤和健康指标 (肥胖,糖尿病,高血压,高脂血症) 的数据.
- 随机效应模型和元回归被用于数据合成.
主要成果:
- 与对照组或基线相比,计步器使用者显著增加了每天2183-2491步的身体活动.
- 总体体力活动增加了26.9%,而步骤目标 (例如,10,000步) 是一个关键预测因素.
- 计步器的使用与体重指数 (-0.38 kg/m2) 和静脉血压 (-3.8 mm Hg) 的显著降低有关.
结论:
- 计步器的使用与体力活动的大幅增加和身体质量指数和血压的改善有关.
- 设定每日步骤目标与体育活动的增加和积极的健康变化有关.
- 这些计步器诱导的变化的长期持久性仍有待确定.
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