BMI-referenced standards for recommended pedometer-determined steps/day in children
BMI-referenced standards for recommended pedometer-determined steps/day in children
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DOI：
10.1016/j.ypmed.2003.12.018
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发表时间：
2004-06-01
影响因子：
5.1
通讯作者：
Cuddihy, TF
中科院分区：
文献类型：
--
作者：
Tudor-Locke, C;Pangrazi, RP;Cuddihy, TF
背景建议的青少年体力活动水平（PA）应该来自与重要健康结果相关的数据。本研究的目的是。建立与健康身体成分相关的PA（使用计步器评估步数/天）的标准参考标准。这是对来自美国、澳大利亚和瑞典的1，954名儿童（995名女孩，959名男孩;年龄6-12岁）的现有数据集（包括计步器评估的PA和客观测量的BMI）的二次分析。使用对照组方法[M. J. Sarif，Introduction to Measurement in Physical Education and Exercise Science，St. Louis，MO：Mosby College Publishing; 1986]建立标准参考临界点，以确定与正常体重和超重/肥胖的国际BMI临界点相关的步数/天的最佳年龄和性别特异性标准。6-12奥尔兹每天步行步数的临界点为女孩每天12，000步，男孩每天15，000步。本研究中进行的分析过程阐明了先前使用的规范参考标准与基于BMI类别的标准参考标准之间的差异。本文使用国际样本建立的步数/日临界点高于先前建议的规范标准，但与我们对青年PA需求的理解的最新进展并不矛盾。该分析为在独立样本和纵向研究设计中交叉验证和评价这些BMI参考步数/日临界点提供了基础。(C)2004年癌症预防研究所和爱思唯尔公司。All rights reserved.
Background. Recommended levels of youth physical activity (PA) should emerge from data related to important health outcomes. The purpose of the present study was to. establish criterion-referenced standards for PA (using pedometer-assessed steps/day) related to healthy body composition.Methods. This is a secondary analysis of an existing data set (including pedometer-assessed PA and objectively measured BMI) of 1,954 children (995 girls, 959 boys; ages 6-12 years) from the USA, Australia, and Sweden. The contrasting groups method [M.J. Sarif, Introduction to Measurement in Physical Education and Exercise Science, St. Louis, MO: Mosby College Publishing; 1986] for establishing criterion-referenced cut points was used to identify optimal age- and sex-specific standards for steps/day related to international BMI cut points for normal weight and overweight/obesity.Results. The selected cut points for steps/day for 6-12 year olds were 12,000 steps/day for girls and 15,000 steps/day for boys.Conclusions. The analytical process undertaken in this study illuminated the difference in previously used norm-referenced standards vs. criterion-referenced standards based on BMI categories. The steps/day cut points established herein, using an international sample, are higher than previously suggested normative standards but are not inconsistent with recent advances in our understanding of PA needs in youth. This analysis provides the foundation for cross-validation and evaluation of these BMI-referenced steps/day cut points in independent samples and with longitudinal study designs. (C) 2004 The Institute For Cancer Prevention and Elsevier Inc. All rights reserved.