Regional Difference in the Impact of COVID-19 Pandemic on Domain-Specific Physical Activity, Sedentary Behavior, Sleeping Time, and Step Count: Web-Based Cross-sectional Nationwide Survey and Accelerometer-Based Observational Study

Yosuke Yamada   ¹ , PhD ;   Hideyuki Namba   ² , PhD ;   Heiwa Date   ³ , PhD ;   Shinobu Kitayama   ⁴ , PhD ;   Yui Nakayama   ¹ , MD ;   Misaka Kimura   ⁵ , PhD ;   Hiroyuki Fujita   ⁵ , PhD ;   Motohiko Miyachi   ⁶ , PhD

¹ Department of Physical Activity Research, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, Japan

² Department of Liberal Arts and Science, College of Science and Technology, Nihon University, Tokyo, Japan

³ Faculty of Data Science, Shiga University, Shiga, Japan

⁴ Department of Psychology, University of Michigan, Ann Arbor, MI, United States

⁵ Institute for Active Health, Kyoto University of Advanced Science, Kyoto, Japan

⁶ Faculty of Sport Sciences, Waseda University, Saitama, Japan