Medicine and Health Sciences Commons^™

Utilization Of Inertial Measurement Units For Determining The Sequential Chain Of Baseball Strike Posture, Yun-Ju Lee, Po-Chieh Lin, Ling-Ying Chen, Yu-Jung Cha, Jing Nong Liang

Physical Therapy Faculty Publications

The purpose of this study was to employ inertial measurement units (IMU) with an eyetracking device to investigate different swing strategies between two levels of batters. The participants were 20 healthy males aged 20 to 30 years old, with ten professional and ten amateur batters. Eye gaze position, head, shoulder, trunk, and pelvis angular velocity, and ground reaction forces were recorded. The results showed that professional batters rotated segments more rhythmically and efficiently than the amateur group. Firstly, the professional group spent less time in the preparation stages. Secondly, the maximum angular velocity timing of each segment of the professional …