Daily physical activity related to body fat in children aged 8-11 years
Daily physical activity related to body fat in children aged 8-11 years
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DOI：
10.1016/j.jpeds.2006.02.002
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发表时间：
2006-07-01
影响因子：
5.1
通讯作者：
Andersen, L. B.
中科院分区：
文献类型：
--
作者：
Dencker, M.;Thorsson, O.;Andersen, L. B.
目的评价248例7.9 ~ 11.1岁儿童的客观测量与日常生活质量的相关性。采用双能x线吸收仪测量腹部脂肪量和全身脂肪量。通过加速度计评估4天的日常身体活动。结果所有儿童的总体脂占体重的百分比与每天剧烈体育活动的分钟数呈负相关，r = -0.38 （P < 0.05）。身体脂肪含量最高的四分之一的儿童，无论男孩还是女孩，每天的剧烈运动时间平均比身体脂肪含量最低的四分之一的儿童少12分钟。多元回归分析显示，影响体脂的独立因素是每天剧烈运动的分钟数和性别。结论低运动量可能是儿童肥胖的一个因素。然而，只有纵向研究才能提供关于日常体育活动与肥胖之间关系的更明确的信息。
Objective To evaluate the association between objectively measured dailyStudy design Cross-sectional, observational, study of 248 children aged 7.9 to 11.1 years. Abdominal fat mass and total body fat mass were measured by dual-energy X-ray absorptiometry. Daily physical activity was assessed by accelerometers for 4 days.Results Total body fat expressed as a percentage of body mass was inversely related to minutes of vigorous physical activity per day, for all children r = -0.38 (P < .05). Children, both boys and girls, in the highest quartile of body fat performed on average 12 minutes less vigorous activity per day compared with their counterparts in the lowest quartile. Multiple regression analysis revealed that independent factors for body fat were number of minutes of vigorous activity per day and sex.Conclusion Low physical activity can be a contributing factor in childhood obesity. Only longitudinal studies, however, can give more definitive information about the relation between daily physical activity and obesity.