Funding for this research was provided by:
National Natural Science Foundation of China (31571226, 81703220)
Received: 20 March 2020
Accepted: 22 July 2020
First Online: 1 August 2020
Ethics approval and consent to participate
: The study was conducted in accordance with the Declaration of Helsinki, and the protocol was approved by the Ethics Committee of Shanghai University of Sport (2016001). All subjects provided informed consent for inclusion before they participated in the study.
: Not applicable.
: The authors declare that they have no competing interests.