Amount of time spent in sedentary behaviors in the united states, 2003-2004
Amount of time spent in sedentary behaviors in the united states, 2003-2004
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DOI：
10.1093/aje/kwm390
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发表时间：
2008-04-01
影响因子：
5
通讯作者：
Troiano, Richard P.
中科院分区：
文献类型：
--
作者：
Matthews, Charles E.;Chen, Kong Y.;Troiano, Richard P.
久坐行为与不良的健康结果有关，但在美国，这些行为所花费的总时间尚未被客观量化。作者评估了2003-2004年国家健康和营养检查调查中年龄≥ 6岁的参与者，他们佩戴了长达7天的活动监测器。在6,329名每天至少佩戴10小时监测器的参与者中，平均佩戴监测器的时间为13.9小时/天（标准差为1.9）。总体而言，参与者花费了54.9%的监测时间，即7.7小时/天，久坐不动。在美国，大多数久坐不动的人群是年龄大于等于60岁的青少年和成年人，他们大约60%的清醒时间都是久坐不动的。女性在30岁之前比男性更久坐，但这种模式在60岁之后被逆转。墨西哥裔美国成年人明显比其他美国成年人少久坐，白色和黑人女性在12岁后久坐不动。这些数据提供了美国人口久坐行为所花费时间的第一个客观衡量标准，并表明美国人将大部分时间花在消耗很少能量的行为上。
Sedentary behaviors are linked to adverse health outcomes, but the total amount of time spent in these behaviors in the United States has not been objectively quantified. The authors evaluated participants from the 2003-2004 National Health and Nutrition Examination Survey aged >= 6 years who wore an activity monitor for up to 7 days. Among 6,329 participants with at least one 10-hour day of monitor wear, the average monitor-wearing time was 13.9 hours/day (standard deviation, 1.9). Overall, participants spent 54.9% of their monitored time, or 7.7 hours/day, in sedentary behaviors. The most sedentary groups in the United States were older adolescents and adults aged >= 60 years, and they spent about 60% of their waking time in sedentary pursuits. Females were more sedentary than males before age 30 years, but this pattern was reversed after age 60 years. Mexican-American adults were significantly less sedentary than other US adults, and White and Black females were similarly sedentary after age 12 years. These data provide the first objective measure of the amount of time spent in sedentary behavior in the US population and indicate that Americans spend the majority of their time in behaviors that expend very little energy.