Population Health Intervention Research Center, University of Calgary, Alberta, Canada.
Res Q Exerc Sport. 2011 Jun;82(2):162-7. doi: 10.1080/02701367.2011.10599743.
The purpose of this study was to establish sex-specific criterion-referenced standards for pedometer-determined physical activity related to body mass index (BMI)-defined weight status among youth. We analyzed data from 7-16-year-old boys (n = 338) and girls (n = 337) and used pedometer-assessed physical activity and anthropometric data to derive average steps/day and BMI. Sex-specific criterion-referenced standards for steps/day relating to healthy weight and overweight/obese were determined using the contrasting groups method. Healthy weight children took more steps/day than overweight or obese (boys: 14,413 vs. 12,088, and girls: 12,562 vs. 10,114, respectively; p < .001). The optimal BMI-referenced cut-point emerging flom our sample was 16,000 steps/day for both boys and girls. Our results and those reported elsewhere suggest that youth take insufficient pedometer-determined steps/day to avoid becoming overweight.
本研究旨在为青少年制定基于体重指数（BMI）定义的体重状况的计步器测定体力活动的性别特异性标准。我们分析了 7-16 岁男孩（n=338）和女孩（n=337）的数据，并使用计步器评估的体力活动和人体测量数据得出平均每日步数和 BMI。使用对比组法确定与健康体重和超重/肥胖相关的每日步数的性别特异性标准。健康体重的儿童比超重或肥胖的儿童（男孩：14413 对 12088，女孩：12562 对 10114，p<0.001）每天走更多的步数。我们的样本中出现的最佳 BMI 参考截断点是男孩和女孩每天 16000 步。我们的结果和其他地方报告的结果表明，青少年每天走的计步器确定的步数不足以避免超重。
