Patterns of accelerometer-derived sedentary time across the lifespan
Patterns of accelerometer-derived sedentary time across the lifespan
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DOI：
10.1080/02640414.2018.1474537
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发表时间：
2018-12-17
影响因子：
3.4
通讯作者：
Sardinha, Luis B.
中科院分区：
文献类型：
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作者：
Santos, Diana A.;Judice, Pedro B.;Sardinha, Luis B.
我们的目标是在国家层面上描述ST及其模式。使用髋部佩戴的加速度计(Actigraph GT1M)在清醒时间收集了来自2007-2009年的4575名葡萄牙人(2683名女性)的数据，年龄在10-102岁之间。数据按性别、5岁年龄间隔、青少年(n=2833)、成年人(n=1122)和老年人(n=620)提供。估计Lambda-Mu-sigma(LMS)平滑的百分位数曲线。女孩、女性和老年女性分别花了61%、57%和%的穿着时间在ST。在男性中，ST分别占男孩、男性和老年男性穿戴时间的57%、60%和62%。与其他年龄组相比，老年人在30分钟的比赛中花费了更多的ST(女性：33%，男性：39%)。每小时休息次数：女孩10.6次，妇女11.7次，老年妇女9.6次。在男性中，每小时休息的次数：男孩、男性和老年男性分别为11.2、10.5和8.5。总而言之，年龄越大，ST越高。相反，我们发现，ST可能较高的潜在关键时刻是在青春期和从成年向老年过渡期间，这代表着干预的关键时期。
We aimed to describe ST and its patterns on a national level. A hip-worn accelerometer (ActiGraph GT1M) was used to collect data during waking hours from 4575 Portuguese' participants from 2007-2009 (2683 females) aged 10-102 years old. Data was presented by sex, in 5-years age intervals, and by adolescents (n=2833), adults (n=1122), and older adults (n=620). Lambda-mu-sigma (LMS) smoothed percentile curves were estimated. Girls, women, and older women spent 61, 57, and 64% of wear time in ST, respectively. In males, ST represented 57, 60, and 62% of wear time respectively for boys, men, and older men. Comparing to other age groups, older adults spent a larger amount of ST in bouts >= 30-min (women: 33%, men: 39% of total ST). The number of breaks/ST hour were: 10.6 in girls, 11.7 in women, and 9.6 in older women. In males, the number of breaks/ST hour were: 11.2, 10.5, and 8.5 for boys, men, and older men. In conclusion, ST was not consistently higher at older ages. Instead, we found that the potential critical moments in which ST may be higher are during adolescence and in the transition from adulthood into older adulthood, which represents critical periods for interventions.