Contribution of youth sport to total daily physical activity among 6-to 12-yr-old boys
Contribution of youth sport to total daily physical activity among 6-to 12-yr-old boys
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DOI：
10.1249/mss.0b013e318093f56a
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发表时间：
2007-09-01
期刊：
影响因子：
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通讯作者：
Eisenmann, Joey C.
中科院分区：
文献类型：
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作者：
Wickel, Eric E.;Eisenmann, Joey C.
目的：本研究的目的有两个：1)确定青少年有组织的体育运动对总日常体力活动(PA)的贡献；2)考察日常休息和体育(PE)对总日常体力活动(PA)的贡献。方法：采用横断面设计，119名儿童在上学期间佩戴加速度计，参加有组织的青少年运动。一组受试者(N=36)在非运动日佩戴加速度计以检查PA的日常差异。对青少年运动、课间休息和体育活动中的总PA和PA进行了估算。青少年运动、课间休息和体育的贡献是通过将每次活动中的PA量除以每天的PA总量来确定的。结果：监测日达到中等到剧烈的体力活动(MVPA)约110min。青少年运动贡献了总MVPA的约23%，而体育和课间休息分别贡献了近11%和16%。近一半的MVPA累积分钟归因于非结构化活动(类似于56分钟)。在整个样本中，大约52%的青少年运动时间花在了久坐或轻强度的活动上，而中等强度和剧烈的体力活动分别占大约27%和22%。与运动日相比，在非运动日，参与者的久坐活动显著增加(P=0.02)，而适度活动(P=0.02)和剧烈活动(P<；0.001)显著减少。结论：这项研究的参与者在参加青少年体育活动的一天中平均有10分钟的MVPA。在运动日(类似于30分钟)积累的额外MVPA量在非运动日不保持。
Purpose: The purpose of this study was twofold: 1) to determine the contribution of organized youth sport to total daily physical activity (PA), and 2) to examine the contribution of daily recess and physical education (PE) to total daily PA. Methods: Using a cross-sectional design, 119 children wore an accelerometer during a school day in which they participated in organized youth sport. A subsample (N = 36) wore the accelerometer on a nonsport day to examine day-to-day differences in PA. Total daily PA and PA during youth sport, recess, and PE were estimated. The contributions of youth sport, recess, and PE were determined by dividing the amount of PA from each activity by the total daily amount of PA. Results: Approximately I 10 min of moderate to vigorous physical activity (MVPA) were achieved on the monitoring day. Youth sport contributed approximately 23% of the total MVPA, whereas PE and recess contributed almost 11 and 16%, respectively. Nearly half of the accumulated minutes of MVPA were attributed to unstructured activities (similar to 56 min). For the entire sample, approximately 52% of youth sport time was spent in either sedentary or light-intensity activities, whereas moderate and vigorous physical activity accounted for approximately 27 and 22% of the time, respectively. During a nonsport day, participants engaged in significantly more sedentary activity (P = 0.02) and significantly less moderate (P = 0.02) and vigorous activity (P < 0.001) compared with the sport day. Conclusion: Participants in this study averaged I 10 min of MVPA during a day in which they participated in youth sport. The additional amount of MVPA accumulated on the sport day (similar to 30 min) was not maintained on a nonsport day.