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Does participation in physical education reduce sedentary behaviour in school and throughout the day among normal-weight and overweight-to-obese Czech children aged 9-11 years?
Sigmund E, Sigmundová D, Hamrik Z, Madarásová Gecková A. Sigmund E, et al. Among authors: hamrik z. Int J Environ Res Public Health. 2014 Jan 16;11(1):1076-93. doi: 10.3390/ijerph110101076. Int J Environ Res Public Health. 2014. PMID: 24441509 Free PMC article. Clinical Trial.
International Trends in Adolescent Screen-Time Behaviors From 2002 to 2010.
Bucksch J, Sigmundova D, Hamrik Z, Troped PJ, Melkevik O, Ahluwalia N, Borraccino A, Tynjälä J, Kalman M, Inchley J. Bucksch J, et al. Among authors: hamrik z. J Adolesc Health. 2016 Apr;58(4):417-425. doi: 10.1016/j.jadohealth.2015.11.014. Epub 2016 Jan 27. J Adolesc Health. 2016. PMID: 26827267
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