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OBJECTIVES: The objective of this study was to investigate changes in physical activity (PA) between January (before the COVID-19 epidemic) and April (during the COVID-19 epidemic) 2020 in community-dwelling older adults in Japan. DESIGN: Cross-sectional online survey. SETTING AND SUBJECTS: From April 23 to 27, 2020, an online survey was completed by 1,600 community-dwelling older adults in Japan. METHODS: We assessed the frailty status using the Kihon checklist, and other demographics and asked questions regarding PA at two time points: January and April 2020. We defined the total PA time (minutes) per week based on activity frequency and time. RESULTS: The study participants' mean age, proportion of women, and prevalence of frailty were 74.0±5.6 years, 50% (n=800), and 24.3% (n=388), respectively. We found a significant decrease in total PA time in April 2020 (median interquartile range (IQR), 180 0 to 420) when compared to January 2020 (median IQR, 245 90 to 480) (P<0.001). We also performed a subgroup analysis according to the frailty category; total PA time significantly decreased in April 2020 when compared to January 2020 for all frailty categories (P<0.001). CONCLUSION: In conclusion, due to the COVID-19 epidemic, the total PA time in April 2020 significantly decreased compared to that in January 2020 in older adults. This finding may lead to a higher incidence of disability in the near future in older people.
Yamada et al. (2020) studied this question.
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