Association between duration of playing video games and bone mineral density in Chinese adolescents.
The aim of the study was to investigate the association between duration of playing video games and bone mineral density (BMD) in Chinese adolescents. Three hundred eighty-four Chinese adolescents aged 14-18 yr (148 males and 236 females) were analyzed. Anthropometric measurements were obtained using standard procedures. Total body and regional BMD were measured using dual-energy X-ray absorptiometry. Duration of playing video games, defined as hours per day, was measured by a self-report questionnaire. We examined the association between duration of playing video games and BMD using multiple linear regression analysis. After adjustment for age, sex, pubertal stage, parental education, body mass index, adolescents with longer video game duration were more likely to have lower legs, trunk, pelvic, spine, and total BMD (p < 0.05). We concluded that duration of video game was negatively associated with BMD in Chinese adolescents. These findings provide support for reducing duration of playing video games as a possible means to increase BMD in adolescents. Future research is needed to elucidate the underlined mechanisms linking playing video games and osteoporosis.
Department of Orthopaedics, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Haiyu
H
Shao
Department of Orthopaedics, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Shaonan
S
Xu
Department of Orthopaedics, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China. Electronic address: spinezhangjun@aliyun.com.
Jun
J
Zhang
Department of Probability and Statistics, School of Mathematical Sciences, Peking University, Beijing, China.
Jiayin
J
Zheng
Department of Orthopaedics, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Jinping
J
Chen
Department of Orthopaedics, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Yazeng
Y
Huang
Department of Orthopaedics, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Bin
B
Ru
Department of Orthopaedics, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Yongming
Y
Jin
Department of Surgery, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Qi
Q
Zhang
Department of DEXA, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Qifeng
Q
Ying
D015502:Absorptiometry, Photon; D000293:Adolescent; D015519:Bone Density; D001842:Bone and Bones / Q000000981:diagnostic imaging*; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D010384:Pelvic Bones / Q000000981:diagnostic imaging; D013131:Spine / Q000000981:diagnostic imaging; D011795:Surveys and Questionnaires; D013977:Tibia / Q000000981:diagnostic imaging; D013997:Time Factors; D018910:Video Games / Q000706:statistics & numerical data*
Bone mineral density; Chinese adolescents; playing video games