1.
Chinese Journal of Sports Medicine
;
(6)1983.
Article
in Chinese
| WPRIM
| ID: wpr-584746
ABSTRACT
Objective To analyze the bone mineral density(BMD)and the correlated influence factors ingirls. Methods BMD and partial physical development variables of 714 girls, aged 9 to 16, were examined in Guangdong and Guangxi province and a questionnaire was administered to all subjects to determine their milk intake, physical activity, menarche, and regularity of menstruation. Results BMD in girls increased by 4.4% at age of 9~12, increased by 6.0% at age of 12~14, and increased by 2.5% at age of 14~16. Compared with girls having less than six-hour outdoor exercise, those having more than six-hour outdoor exercise revealed higher BMD levels (P200ml/day) might be effective for promoting BMD of girls during puberty.