About the Authors
- Guoxiao Sun
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Roles Conceptualization, Funding acquisition, Supervision, Writing – review & editing
Affiliation School of Physical Education, Shandong University, Jinan, China
- Jun Wang
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Roles Formal analysis, Methodology, Software, Writing – original draft
Affiliation School of Physical Education, Shandong University, Jinan, China
- Shuangling Zhang
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Roles Investigation, Methodology, Supervision
* E-mail: shuanglingzhang00@163.com
Affiliation Shandong Institute of Sport Science, Jinan, China
Competing Interests
The authors have declared that no competing interests exist.