야구투수들의 투구 구질에 따른 상지근육의 EMG 변화 = A Change of EMG on Upper Limbs Muscle according to pitching variation in Baseball Pitchers

다국어 초록 (Multilingual Abstract)

The purpose of this study is in the comparison & analysis of EMS change of upper limbs according to pitching variation of baseball pitcher. And 5 pitchers from university baseball were selected as the subject of this study. pitching variation was measured pitching fast ball, curve, slider & change-up in 3 phases of measurement. Firstly, as for the EMG value, in arm cocking phase, no significant difference was shown in 4 kinds of change in pitching variation among muscle, and in arm acceleration phase, there was significant decrease at extensor carpi radialis & flexor carpi radialis in curve & change-up rather than fast ball. Lastly, in arm decceleration phase, the significant decrease was shown at deltoid, extensor carpi radialis & flexor carpi radialis in curve & change-up rather than fast ball. From this result, it was shown that there is a tendency toward significant decrease in forearm muscles that other muscles at pitching change ball, and toward no significant difference in fast ball and slider in the all muscles.

목차 (Table of Contents)

• Abstract
• Ⅰ. 서론
• Ⅱ. 연구방법
• Ⅲ. 결과 및 논의
• Ⅳ. 결론
• 참고문헌