Fatigue Impact to Mechanical Movement and Ball Velocity Pitcher Baseball

Fatigue factor can restrict and interfere with the decision-making cognition players and also hamper the players during the game. It was found that fatigue can reduce the speed of the ball on the performance of throws, fatigue is a key component of the risk of injury because it can cause loss of proper mechanics, while others find a different ball exit speed which has not changed significantly. while playing in a game simulation. The purpose of this study was to determine the level of fatigue more comprehensive by tossing a change of pace and movement mechanisms that occur at the baseball pitcher. The method used in this research is quantitative descriptive. These samples included 6 beginner baseball player pitcher university education in Indonesia. The independent variables consist of fatigue index levels (normal and maximum). Meanwhile, the dependent variable is the speed of the ball. The results showed that there was a significant difference in the speed of the ball between normal and fatigue conditions. Furthermore, the results of Ground Reaction Force (GRF) and impulse showed significant differences. Keywords— Fatigue, baseball pitcher, Biomechanics