Abstract Summary
This study was conducted to investigate interaction during turning movement in competitive ballroom dance. Thirteen national high-level competitive ballroom dance couples and the current world competitive ballroom champion couple were participated. Movements were recorded at 240 Hz using two Xsens systems. The ballroom sequence dance steps for the waltz were used. ①Preparation ②Natural Spin Turn ③Second half of Reverse Turn First, the male danced alone. Then the female danced alone. Finally, they danced together using a closed hold position. The first half of natural spin turn was analysed. Some parameters of step length and the movement range of lower extremity joints were significantly different between alone and pair in the high-level dance couples. Comparing with the high-level dance couples, the step length of champion dance couple was tended to be longer. Pairing male dancer with female dancer, the movements of the competitive ballroom dance may become more dynamic.