Abstract
This study aims to investigate how the kinematics of human arm (i.e. angle and angular velocity of elbow) at release timing (RT) affects on the outcome on the dartboard. For this aim, we detect the RT by tracking dart tail using motion capture. In addition, we examined EMG signals and compared three different muscles: triceps brachii (TB), biceps brachii (BB) and dorsal interossei (DI) between thumb and index finger to be clear expertizes. Results showed that there seems no any constraint between the two kinematic parameters with large variation in elbow angle at the RT in all beginners. Besides, in the EMG analysis, it is found that there was no co-activation of TB and BB, with shorter activation duration of the latter in the best performance subject whereas signals of DI illustrated the same trend for all players.
