TC exercise program
In this study, we selected 24TCC, TCKFF, and TCSB as interventions for the participants, which are all related to Tai Chi (TC) but involve different exercise methods:(i) 24TCC: It consists of 24 movements, including the basic actions and postures of TC, focusing primarily on the smoothness and coherence of movements, while emphasizing the fundamental principles of TC.(ii) TCKFF: In TCKFF, the movements of TC are combined with the use of a fan, requiring practitioners to master the basic techniques of TC and learn how to perform various actions with the fan.(iii) TCSB: This is a TC fitness tool typically composed of two metal balls connected by a rope. Practitioners rotate the balls in their hands to perform TC-style movements. The use of this tool helps improve hand–eye coordination, balance, and flexibility, with a focus on actions involving the hands and wrists.