Abstract
Throwing motion without vision has the potential as a training method to improve proprioception by concentrating more on joint movements in throwing. Therefore, the purpose of this study was to suggest a method of training motor sense, which can improve ball velocity and the pitchers’ control (target accuracy). The study population consisted of 20 high school and college baseball players. Rotator cuff and elbow joint muscle activation, ball velocity, and ball accuracy in the stride, arm cocking, acceleration, and deceleration phases during throwing the ball with maximum effort (TBME) with or without vision were measured.
Highlights
In a baseball game, pitchers play an important role in determining the outcome of the game, and the pitching speed and accuracy are considered highly important factors [1]
The surface-detected motor unit potential (SMUP) analyzed by the motor unit showed a higher mean value after visual blockage training than that before visual blockage training during the the ball with maximum effort (TBME), but there was no significant difference
Ball speed, pitching accuracy, and SMUP during TBME all showed a high level after visual blockage training, but there was no statistical significance relative to before visual blockage training
Summary
Pitchers play an important role in determining the outcome of the game, and the pitching speed and accuracy are considered highly important factors [1]. The throwing technique does not involve the use of the hands and arms but is performed by whole body exercises that transmit energy to the distal wrists and fingers through the momentum of the lower limbs and the rotation of the torso and hip [2]. While many sensory organs provide information during movement, the selection for the performance of motion takes priority over the acquisition and selection of information through visual attention [4]. Visual information plays a role in moving the limb in the target direction quickly through the timescale with the dorsal visual stream, thereby reducing the error in performing the motion [5,6]
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