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首页> 外文期刊>Annals of epidemiology >Reliable method to estimate characteristics of sleep and physical inactivity in free-living conditions using accelerometry.
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Reliable method to estimate characteristics of sleep and physical inactivity in free-living conditions using accelerometry.

机译：使用加速度计估算在自由生活条件下睡眠和身体不活动的特征的可靠方法。

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PURPOSE: The purpose of this study is to use a new method to assess the characteristics of sleep and diurnal physical inactivity in human beings by means of accelerometry, noninvasively and in free-living conditions. METHODS: Forty girls and 40 boys aged 13 to 15 years, randomly selected from rural Senegal, wore an accelerometer for a 72-hour period during the dry season in 1998 and 2000. An algorithm already tested in another study was used to objectively calculate the characteristics of sleep and physical inactivity from movement registration provided by accelerometry. RESULTS: Adolescent girls slept for a longer time and more quietly than adolescent boys (8 hours 45 minutes versus 8 hours 9 minutes). Girls were more inactive than boys (4 hours 23 minutes versus 2 hours 49 minutes). Reliability estimates of physical inactivity period measures were excellent (0.74 to 0.78), and those of sleep period and length measures were acceptable (0.45 to 0.61). Girls and boys had the same levels of reliability, except for sleep efficiency measures. CONCLUSIONS: These findings could be explained by the nature and sex division of habitual tasks within the community. The accelerometer is a valid and useful epidemiologic tool for measuring characteristics of sleep and physical inactivity in free-living conditions. This innovative tool opens new prospects in epidemiology and public health, especially in the worldwide epidemic of chronic diseases associated with physical inactivity and sleep disorders.
机译：目的：本研究的目的是使用一种新方法，通过无创和自由生活条件下的加速度计来评估人类的睡眠和日间身体活动不足的特征。方法：从塞内加尔农村地区随机抽取的40位年龄在13至15岁之间的女孩和40位男孩，在1998年和2000年的旱季期间佩戴了加速度计72小时。另一项研究中已经测试过的一种算法被用来客观地计算出加速度计提供的运动记录显示出睡眠和身体不活动的特征。结果：青春期女孩比青春期男孩睡得更长，更安静（8小时45分钟对8小时9分钟）。女孩比男孩更不活跃（4小时23分钟对2小时49分钟）。身体不活动时间量度的可靠性估计极好（0.74至0.78），睡眠时间和长度时间量度的可靠性估计值是可接受的（0.45至0.61）。除睡眠效率指标外，女孩和男孩的可靠性相同。结论：这些发现可以由社区内习惯性工作的性质和性别划分来解释。加速度计是一种有效且有用的流行病学工具，用于测量自由生活条件下的睡眠和身体活动不足的特征。这种创新工具为流行病学和公共卫生，特别是与缺乏运动和睡眠障碍相关的慢性疾病的全球流行开辟了新的前景。

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