文章基本信息

标题：Daily School Physical Activity from before to after Puberty Improves Bone Mass and a Musculoskeletal Composite Risk Score for Fracture
本地全文：下载
作者：Felix Cronholm ; Erik Lindgren ; Björn E. Rosengren 等
期刊名称：Sports
电子版ISSN：2075-4663
出版年度：2020
卷号：8
期号：4
DOI：10.3390/sports8040040
出版社：MDPI Publishing
摘要：This 7.5-year prospective controlled exercise intervention study assessed if daily school physical activity (PA), from before to after puberty, improved musculoskeletal traits. There were 63 boys and 34 girls in the intervention group (40 min PA/day), and 26 boys and 17 girls in the control group (60 min PA/week). We measured musculoskeletal traits at the start and end of the study. The overall musculoskeletal effect of PA was also estimated by a composite score (mean Z-score of the lumbar spine bone mineral content (BMC), bone area (BA), total body lean mass (TBLM), calcaneal ultrasound (speed of sound (SOS)), and muscle strength (knee flexion peak torque)). We used analyses of covariance (ANCOVA) for group comparisons. Compared to the gender-matched control group, intervention boys reached higher gains in BMC, BA, muscle strength, as well as in the composite score, and intervention girls higher gains in BMC, BA, SOS, as well as in the composite score (all p < 0.05, respectively). Our small sample study indicates that a daily school-based PA intervention program from Tanner stage 1 to 5 in both sexes is associated with greater bone mineral accrual, greater gain in bone size, and a greater gain in a musculoskeletal composite score for fractures..
关键词：bone mineral content; bone mineral density; bone size; boys; children; exercise; girls; muscle strength; muscle mass; physical activity; puberty; Tanner stage bone mineral content ; bone mineral density ; bone size ; boys ; children ; exercise ; girls ; muscle strength ; muscle mass ; physical activity ; puberty ; Tanner stage