[Status of physical activities among 379 pupils in Beijing].
OBJECTIVE
Using the objective detection devices to explore the physical activity status in order to provide evidence related to the physical activity intervention program on child obesity in elementary students.


METHODS
Subjects were elementary students from grades 1-5 of 4 schools in Haidian and Dongcheng districts, Beijing. After measuring their height and weight, an motion sensor was applied to measure physical activities in these 379 pupils.


RESULTS
Time on moderate to vigorous physical activities (MVPA) among pupils was 74.09 min and the ratio of meeting the recommended time of physical activity was 68.9%. The MVPA time in males (79.46 min) was more than that in females (66.07 min) (P<0.05), with the ratio of meeting the recommended physical activity time in males (78.0%) also larger than that in females (55.3%) (P<0.05). There was no significant difference between low age group and high age group (P>0.05), however, there showed significant difference in light physical activity time among the normal group, overweight group and the obese group (P<0.05). However, there was no significant difference found in MVPA time among the three groups (P>0.05).


CONCLUSIONS
The ratio of meeting the recommend physical activity time was low. MVPA time should be increased to guarantee the athletic effects and to improve the health status in the pupils.
Institute of Child and Adolescent Health, School of Public Health, Peking University Health Science Center, Beijing 100191, China.
Jing-jing
JJ
Wang
Bai-hui
BH
Li
Hai-jun
HJ
Wang
Jun
J
Ma
D002648:Child; D002681:China; D015444:Exercise; D005260:Female; D006801:Humans; D008297:Male; D013334:Students / Q000706:statistics & numerical data*