The association between an objective measure of physical activity and weight status in preschoolers
The association between an objective measure of physical activity and weight status in preschoolers
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DOI：
10.1038/oby.2007.571
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发表时间：
2007-03-01
期刊：
影响因子：
6.9
通讯作者：
Sherry, Bettylou
中科院分区：
文献类型：
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作者：
Metallinos-Katsaras, Elizabeth S.;Freedson, Patty S.;Sherry, Bettylou
目的：我们的目标是确定体育活动和BMI之间的种族多样性低收入学龄前儿童。研究方法和程序：这是一个横断面研究2至5岁的儿童（n = 56）参加马萨诸塞州妇女，婴儿和儿童（WIC）的特殊补充营养计划。用加速度计连续7天测量身体活动。从WIC记录中获得身高和体重，并根据疾病控制和预防中心（CDC）2000年生长图表计算年龄BMI指数。超重风险组（年龄BMI>= 85至<95百分位数）和超重组（年龄BMI>= 95百分位数）合并为超重组。最终分析的纳入标准是：完成4.5天的活动评估，并分别在24至35.99个月和36至59.99个月的儿童活动评估后90天和120天内获得人体测量数据。超重儿童的平均每日非常活跃分钟数（VVM）（2.6分钟对4.6分钟，p < 0.05）和非常活跃分钟数（VAM）（即，运动时间（VM）和VVM之和]（22.9分钟对32.1分钟，p < 0.05）。每日VVM [比值比（OR）= 0.68; 95%置信区间（CI），0.49 - 0.96]，VM（OR = 0.94; CI，0.88 ~ 1.00），VAM（OR = 0.94; 95%CI，0.89至1.00）均与显著较低的超重几率相关。这项研究表明，在一个不同的学龄前儿童群体中，剧烈和非常剧烈的活动与较低的超重几率有关。然而，这些研究结果需要在不同的样本学龄前儿童使用纵向设计的确证。
Objective: Our objective was to determine the association between physical activity and BMI among racially diverse low-income preschoolers.Research Methods and Procedures: This was a crosssectional study of 2- to 5-year-olds (n = 56) enrolled in Massachusetts Special Supplemental Nutrition Program for Women, Infants & Children (WIC). Physical activity was measured for 7 consecutive days with an accelerometer. Height and weight were obtained from WIC records, and BMI-for-age percentiles were calculated based on the Centers for Disease Control and Prevention's (CDC) 2000 Growth Charts. At-risk-for-overweight (BMI-for-age of >= 85th to < 95th percentile) and overweight (BMI-for-age >= 95th percentile) groups were combined and referred to as overweight. Final analysis inclusion criteria were: completion of 4.5 days of activity assessment and anthropometric data obtained within 90 and 120 days of the activity assessment for children ages 24 to 35.99 and 36 to 59.99 months, respectively.Results: Overweight children had significantly lower mean daily very vigorous minutes (VVM) (2.6 mins vs. 4.6 mins, p < 0.05) and lower very active minutes (VAM) [i.e., sum of vigorous minutes (VM) and VVM] per day (22.9 mins vs. 32.1 mins, p < 0.05) than children who were not overweight. Daily VVM [odds ratio (OR) = 0.68; 95% confidence interval (CI), 0.49 to 0.96], VM (OR = 0.94; CI, 0.88 to 1.00), and VAM (OR = 0.94; 95% CI, 0.89 to 1.00) were all associated with significantly lower odds of being overweight.Discussion: This study suggests that, in a diverse group of preschoolers, vigorous and very vigorous activity are associated with lower odds of overweight. However, these findings require corroboration in a diverse sample of preschoolers using a longitudinal design.