Advanced pubertal status at age 11 and lower physical activity in adolescent girls

被引:83
作者
Baker, Birgitta L.
Birch, Leann L.
Trost, Stewart G.
Davison, Kirsten Krahnstoever
机构
[1] Penn State Univ, Dept Recreat Pk & Tourism Management, University Pk, PA 16802 USA
[2] Penn State Univ, Ctr Res Chilhood Obes, University Pk, PA 16802 USA
[3] Kansas State Univ, Dept Kinesiol, Manhattan, KS 66506 USA
[4] Kansas State Univ, Community Hlth Inst, Manhattan, KS 66506 USA
[5] SUNY Albany, Dept Hlth Policy Management & Behav, Albany, NY 12222 USA
关键词
D O I
10.1016/j.jpeds.2007.04.017
中图分类号
R72 [儿科学];
学科分类号
100202 [儿科学];
摘要
Objective To examine the relationship between pubertal timing and physical activity. Study design A longitudinal sample of 143 adolescent girls was assessed at ages 11 and 13 years. Girls' pubertal development was assessed at age 11 with blood estradiol levels, Tanner breast staging criteria, and parental report of pubertal development. Girls were classified as early maturers (n = 41) or later maturers (n = 102) on the basis of their scores on the 3 pubertal development measures. Dependent variables measured at age 13 were average minutes/day of moderate to vigorous and vigorous physical activity as measured by the ActiGraph accelerometer. Results Early-maturing girls had significantly lower self-reported physical activity and accumulated fewer minutes of moderate to vigorous and vigorous physical activity and accelerometer counts per day at age 13 than later maturing girls. These effects v.-ere independent of differences in percentage body fat and self-reported physical activity at age 11. Conclusion Girls experiencing early pubertal maturation at age 11 reported lower subsequent physical activity at age 13 than their later maturing peers. Pubertal maturation, in particular early maturation relative to peers, may lead to declines in physical activity among adolescent girls.
引用
收藏
页码:488 / 493
页数:6
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