Physical Distancing Measures and Walking Activity in Middle-aged and Older Residents in Changsha, China, During the COVID-19 Epidemic Period: Longitudinal Observational Study

Yilun Wang   ¹ , MD, PhD ;   Yuqing Zhang   ^{2, 3} , DSC ;   Kim Bennell   ⁴ , PhD ;   Daniel Kenta White   ⁵ , PT, SCD ;   Jie Wei   ^{2, 3, 6} , PhD ;   Ziying Wu   ¹ , MD ;   Hongyi He   ¹ , MD ;   Shaohui Liu   ⁶ , MS ;   Xianghang Luo   ^{7, 8} , MD, PhD ;   Shuo Hu   ^{8, 9} , MD, PhD ;   Chao Zeng   ^{1, 2, 3 *} , MD, PhD ;   Guanghua Lei   ^{1, 8, 10 *} , MD, PhD

¹ Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China

² Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, United States

³ The Mongan Institute, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States

⁴ Centre for Health, Exercise and Sports Medicine, The University of Melbourne, Melbourne, Australia

⁵ Department of Physical Therapy, University of Delaware, Newark, DE, United States

⁶ Health Management Center, Xiangya Hospital, Central South University, Changsha, China

⁷ Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, China

⁸ National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China

⁹ Department of Nuclear Medicine, Xiangya Hospital, Central South University, Changsha, China

¹⁰ Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China

*these authors contributed equally