Identifying coordination between joint movements during a throwing task with multiple degrees of freedom

It is known that coordination between joint movements crucial for the achievement of motor tasks and has been studied extensively. Especially, in sports biomechanics, researchers are interested determining which coordinated to achieve a task. However, this issue cannot be easily addressed with methods employed previous studies. Therefore, we aimed propose method identifying coordination. Subsequently, examined were using accurate overhead throwing, required reduction vertical hand velocity variability. Fourteen baseball players participated by attempting throwing motion capture system. The index each movement effect deviation one on quantified. Our results showed shoulder internal/external rotation angle (θ1-IE) other or horizontal flexion/extension angular (ω1-FE) coordinated. These could explained fact effects internal (θ1-I) flexion (ω1-F) larger than those movements. This meant it was necessary cancel deviations θ1-IE ω1-FE findings indicate proposed study enables identification multiple degrees freedom.