Joint associations of physical activity and screen time with overweight among japanese adults

International Journal of Behavioral Nutrition and Physical Activity

Short Paper

Takemi Sugiyama¹  Shigeru Inoue²  Teruichi Shimomitsu²  Kaori Ishii³  Koichiro Oka³  Yoshio Nakamura³  Ai Shibata³  Yung Liao⁴  Kazuhiro Harada⁵ 

[1] Baker IDI Heart and Diabetes Institute, Level 4, 99 Commercial Road, 3004, Melbourne, VIC, Australia;Department of Preventive Medicine and Public Health, Tokyo Medical University, 6-1-1, Shinjuku-ku, 160-8402, Tokyo, Japan;Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, 359-1192, Tokorozawa, Saitama, Japan;Graduate School of Sport Sciences, Nakamura Laboratory, Waseda University, 2-579-15 Mikajima, 359-1192, Tokorozawa, Saitama, Japan;Japan Society for the Promotion of Science, Sumitomo-Ichibancho Bldg., 6 Ichibancho, 102-8471, Chiyoda-ku, Tokyo, Japan;Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, 359-1192, Tokorozawa, Saitama, Japan;

关键词: Physical Activity;    Sedentary Behavior;    Sedentary Time;    Screen Time;    Japanese Adult;   

DOI  :  10.1186/1479-5868-8-131

 received in 2011-08-04, accepted in 2011-11-30,  发布年份 2011

来源: Springer

【 摘 要 】

BackgroundAlthough both insufficient physical activity (PA) and high screen time (ST) are independent risk factors for obesity, how the combination of sufficient/insufficient PA and high/low ST could increase obesity risk among the adult population of Japan is not known. This study examined joint associations of PA and ST with overweight among Japanese adults.MethodsAn Internet-based survey collected data on height, weight, self-reported time spent in PA and ST, and sociodemographic variables from 2832 adults. Respondents were categorized into sufficient PA/low ST, sufficient PA/high ST, insufficient PA/low ST, or insufficient PA/high ST categories as per public PA guidelines and the median of ST. Logistic regression analysis examined the odds ratios (OR) of being overweight (body mass index, ≥ 25 kg/m2) according to the categories of PA and ST.ResultsIn comparison with the sufficient PA/low ST category, participants in the insufficient PA/high ST category were significantly more likely overweight (OR, 1.48; 95% confidence interval [95%CI), 1.14, 1.93) after adjusting for sociodemographic variables. A significantly higher OR for overweight (including obesity) among insufficient PA/high ST category was also observed in men, but no significant association was found in women.ConclusionsBoth insufficient PA and prolonged ST contribute to overweight and obesity among Japanese adults. Public health initiatives addressing obesity in Japan need to consider both promoting PA and reducing ST, especially in men.

【 授权许可】

CC BY   
© Liao et al; licensee BioMed Central Ltd. 2011