Published on in Vol 23, No 10 (2021): October
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/31051, first published
.
1 Department of Physical Education, Shenzhen University, Shenzhen, China
2 Shanwei Polytech, Shanwei, China
3 Nanshan District Culture, Radio, Television, Tourism and Sports Bureau, Shenzhen, China
*these authors contributed equally