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Changes in Physical Fitness during COVID-19 Pandemic Lockdown among Adolescents: A Longitudinal Study.
Zhou, Ting; Zhai, Xiangyu; Wu, Na; Koriyama, Sakura; Wang, Dong; Jin, Yuhui; Li, Weifeng; Sawada, Susumu S; Fan, Xiang.
  • Zhou T; College of Physical Education and Health, East China Normal University, Shanghai 200241, China.
  • Zhai X; Graduate School of Sport Sciences, Waseda University, Saitama 359-1192, Japan.
  • Wu N; Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, Shanghai 200230, China.
  • Koriyama S; Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, Shanghai 200030, China.
  • Wang D; Graduate School of Sport Sciences, Waseda University, Saitama 359-1192, Japan.
  • Jin Y; Graduate School of Sport Sciences, Waseda University, Saitama 359-1192, Japan.
  • Li W; Xiamen Foreign Language School Shishi Branch, Xiamen 362700, China.
  • Sawada SS; Xiamen Foreign Language School Shishi Branch, Xiamen 362700, China.
  • Fan X; Faculty of Sport Sciences, Waseda University, Saitama 359-1192, Japan.
Healthcare (Basel) ; 10(2)2022 Feb 11.
Article in English | MEDLINE | ID: covidwho-1686690
ABSTRACT
The negative impact of COVID-19 on physical activity has been improved, while the research on changes in physical fitness that may be caused by physical inactivity is still scarce. This study aims to explore the impact of the COVID-19 pandemic lockdown on physical fitness, and the impact of initial physical fitness indicators on their changes during the lockdown in adolescents. A longitudinal study including 265 adolescents aged 14.1 ± 0.4 years old was conducted in China. Physical fitness measurement at baseline and follow-up were respectively measured before (November 2019) and after the lockdown (July 2020). Several physical fitness indicators including aerobic fitness (i.e., 800-m or 1000-m run) and explosive force (i.e., 50-m sprint) deteriorated during the lockdown. Whereas the performances of vital capacity, flexibility (i.e., sit and reach), and muscular strength (i.e., pull-ups) were significantly improved during the lockdown. Furthermore, the reduction in physical fitness for adolescents with higher physical fitness before the lockdown was greater than that for others. These findings may contribute to the development of targeted intervention strategies for physical fitness promotion during the lockdown caused by the public health emergency.
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Full text: Available Collection: International databases Database: MEDLINE Type of study: Cohort study / Experimental Studies / Observational study / Prognostic study Language: English Year: 2022 Document Type: Article Affiliation country: Healthcare10020351

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Cohort study / Experimental Studies / Observational study / Prognostic study Language: English Year: 2022 Document Type: Article Affiliation country: Healthcare10020351