Document Type



This study is aimed to explore the balance of participants between arms-free and arms-control conditions with the Star Excursion Balance Test (SEBT) and Romberg's Test. Twenty healthy young males volunteered to participate in the test. Optitrack Optoelectronic system was utilized to capture the spatiotemporal parameters and the three-dimensional coordinates of the lower extremities. Besides, DIERS formetric 4D system was used to analyse the motion amplitude of spine and pelvis. Arms-control could reduce the dynamic balance based on the results of SEBT, and it would increase the static balance in the instability static condition from Romberg’s Test. Results of this study have provided information on clinical evaluation using arm position during dynamic and static balance from a biomechanical perspective.