首页> 外文期刊>Preventive Medicine: An International Journal Devoted to Practice and Theory >Accelerometer steps/day translation of moderate-to-vigorous activity.
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Accelerometer steps/day translation of moderate-to-vigorous activity.

机译:加速度计步长/天的中等强度到中等强度的活动的转换。

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摘要

Physical activity (PA) guidelines are typically communicated in terms of duration, frequency and intensity, e.g., 30 min/day of moderate-to-vigorous physical activity (MVPA) on at least 5 days/week. Step counters can be used to collect objective PA expressed as steps/day, however the association between steps/day and recommended PA levels is unclear. OBJECTIVE: We determined a direct steps/day translation of 30 min/day accumulated MVPA, using concurrently detected ActiGraph accelerometer-defined step and activity count data collected as part of the 2005-2006 National Health and Nutrition Examination Survey (NHANES). METHOD: We employed statistical models to analyze data from 3523 participants 20+years of age who wore the accelerometer for at least one valid day (i.e., at least 10/24h) over 7 days. RESULTS: 30 min/day of MVPA translated to approximately 7900 steps/day for males and 8300 steps/day for females. In a subsample of participants (n=1197) with valid data on all 7 days, we found 150 min/week of MVPA translated to approximately 7000 steps/day (or 49,000 steps/week). CONCLUSION: Accumulating approximately 8000 steps/day is a good proxy for 30 min of daily MVPA, while accumulating 7000 steps/day every day of the week is consistent with obtaining 150 min of weekly MVPA.
机译:通常以持续时间,频率和强度来传达身体活动(PA)准则,例如,至少每周5天每天30分钟/天的中度到剧烈身体活动(MVPA)。计步器可用于收集以步/日表示的目标功率放大器,但是,步/日与建议功率放大器水平之间的关联尚不清楚。目的:我们使用同时​​检测到的ActiGraph加速度计定义的步数和活动计数数据(作为2005-2006年美国国家健康和营养调查(NHANES)的一部分),确定了每天30分钟/天累积MVPA的直接步数/天数转换。方法:我们采用统计模型分析了来自2023岁以上年龄段的3523名参与者的数据,这些参与者在7天内至少佩戴了有效一天(即,至少10/24小时)。结果:30分钟/天的MVPA转换为男性大约7900步/天,女性8300步/天。在参与者的子样本(n = 1197)中,其所有7天均具有有效数据,我们发现150分钟/周的MVPA转换为大约7000步/天(或49,000步/周)。结论:每天大约8000步/天是每天30分钟MVPA的良好代理,而每周每天每天7000步/天则相当于每周150分钟的MVPA。

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