key: cord-266238-922ncaay
authors: Xiang, Mi; Zhang, Zhiruo; Kuwahara, Keisuke
title: Impact of COVID-19 pandemic on children and adolescents' lifestyle behavior larger than expected
date: 2020-04-30
journal: Prog Cardiovasc Dis
DOI: 10.1016/j.pcad.2020.04.013
sha: 
doc_id: 266238
cord_uid: 922ncaay

nan

It is well-known that reduced PA and prolonged SB are linked to both negative physical and mental health outcomes, 2 such as loss of muscular and cardiorespiratory fitness, weight gain, 3 psychosocial problems, 4 and even poor academic achievements. 5 Furthermore, evidence suggests that the negative impact may extend to adulthood. 6 Nonetheless, more than 70% of 1·6 million adolescents failed to achieve sufficient PA globally in 2016. 7 The current COVID-19 pandemic may further worsen this situation. Thus, a better understanding of the current situation of PA and SB during this pandemic among children and adolescents could help teachers, parents, and the Ministry of Education to urgently determine and implement effective policies and interventions for children and adolescents. However, till date, no study J o u r n a l P r e -p r o o f examined this issue. Therefore, we probed this aspect in detail during this critical time.

We conducted a natural experimental longitudinal study among children and adolescents (6-17 years) in five schools in Shanghai, China, randomly selected from five districts with a high population density. The first survey was conducted from 3 to 21 January 2020 (Public health emergency was activated in Shanghai since January 24, 2020) and the second survey Additionally, the evidence suggests that PA provides protection from viral infections, especially among vulnerable populations. 9 Therefore, governments, schools, professionals for health and exercise, and parents need to be aware of the severe situation and implement more effective interventions for PA immediately to minimize the negative impact of the COVID-19 pandemic on children's and adolescents' health. 

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