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Article History

Received: 9 October 2025

Accepted: 29 January 2026

First Online: 12 February 2026

Declarations

:

: The study was conducted in accordance with the Declaration of Helsinki and approved by the Ethics Committee of Guangdong Vocational Institute of Sport. Written informed consent was obtained from all participants prior to their inclusion in the study.

: All video recordings used in this study were collected with the written informed consent of the participants (or their legal guardians in the case of minors), clearly stating the purpose of data use, storage period, and anonymization procedures.

: The authors declare no competing interests.