Decline in physical activity in black girls and white girls during adolescence
Decline in physical activity in black girls and white girls during adolescence
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DOI：
10.1056/nejmoa003277
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发表时间：
2002-09-05
影响因子：
158.5
通讯作者：
Liu, K
中科院分区：
文献类型：
--
作者：
Kimm, SYS;Glynn, NW;Liu, K
背景：青少年时期体力活动减少，但根本原因尚不清楚。方法：我们对参加国家心肺血液研究所生长与健康研究的1213名黑人女孩和1166名白人女孩进行前瞻性随访，年龄从9岁或10岁到18岁或19岁。我们使用了一份经过验证的问卷，根据报告的活动代谢当量（MET）及其每周MET次数的频率来测量休闲时间的身体活动；得分越高表明活动越活跃。结果：在基线上，黑人女孩和白人女孩的活动得分中位数分别为每周27.3次和30.8次，在研究的第10年下降到0次和11.0次(黑人女孩下降100%，白人女孩下降64%，P
Background: Physical activity declines during adolescence, but the underlying reasons remain unknown.Methods: We prospectively followed 1213 black girls and 1166 white girls enrolled in the National Heart, Lung, and Blood Institute Growth and Health Study from the ages of 9 or 10 to the ages of 18 or 19 years. We used a validated questionnaire to measure leisure-time physical activity on the basis of metabolic equivalents (MET) for reported activities and their frequency in MET-times per week; a higher score indicated greater activity.Results: The respective median activity scores for black girls and white girls were 27.3 and 30.8 MET-times per week at base line and declined to 0 and 11.0 by year 10 of the study (a 100 percent decline for black girls and a 64 percent decline for white girls, P