计步器测定的青少年身体活动水平：按年龄、性别、一周中的时间以及上学交通方式的差异
Pedometer-determined physical activity levels of adolescents: differences by age, sex, time of week, and transportation mode to school.
作者信息
Hohepa Maea, Schofield Grant, Kolt Gregory S, Scragg Robert, Garrett Nick
机构信息
Centre for Physical Activity and Nutrition Research, Auckland University of Technology, Auckland, New Zealand.
出版信息
J Phys Act Health. 2008;5 Suppl 1:S140-52. doi: 10.1123/jpah.5.s1.s140.
BACKGROUND
Few studies have examined high school students' physical activity habits using objective measures. The purpose of this study was to describe pedometer-determined habitual physical activity levels of youth.
METHODS
236 high school students (age 12-18 years) wore sealed pedometers for 5 consecutive days. Data were analyzed using generalizing estimating equations.
RESULTS
Mean steps/d (+/- SE) differed significantly by sex (males, 10,849 (+/- 381; females, 9652 (+/- 289), age (junior students [years 9-11], 11,079 (+/- 330; senior students [years 12 and 13], 9422 (+/- 334), time of week (weekday, 12,259 (+/- 287; weekend day, 8241 (+/- 329), and mode of transportation to and from school (walkers, 13,308 (+/- 483; car transit users, 10,986 (+/- 435). Only 14.5% of students achieved at least 10,000 steps on every day during the monitoring period.
CONCLUSION
Daily step counts differed substantially by age, sex, time of week, and transportation mode to school.
背景
很少有研究使用客观测量方法来研究高中生的体育活动习惯。本研究的目的是描述通过计步器确定的青少年习惯性身体活动水平。
方法
236名高中生（年龄在12至18岁之间）连续5天佩戴密封计步器。使用广义估计方程对数据进行分析。
结果
平均每日步数（±标准误）在性别（男性，10849步（±381步）；女性，9652步（±289步））、年龄（初中生（9至11年级），11079步（±330步）；高中生（12和13年级），9422步（±334步））、一周中的时间（工作日，12259步（±287步）；周末，8241步（±329步））以及往返学校的交通方式（步行者，13308步（±483步）；乘坐汽车者，10986步（±435步））方面存在显著差异。在监测期间，只有14.5%的学生每天至少达到10000步。
结论
每日步数在年龄、性别、一周中的时间以及上学交通方式方面存在很大差异。
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