This study was conducted to identify effects of racket string tensions on wrist extensor and flexor muscle activation. 14 collegiate tennis athletes who have no experience of surgery on lateral epicondyle of elbow and musculoskeletal and cardiovascular diseases during at least last 6 months and over 10 years of player career were randomly selected and a player who has used left hand was excluded from this study. The mean and standard deviation of data was calculated by SPSS/PC 12.0 and One-way ANOVA was used to verify differences among groups. LSD was carried out when significant difference is appeared among groups. Significant level was p<.05. The results of this study were as follows; 1. There was significant difference on maximal value of muscle activation of extensor carpi ulnaris(55>60>65) and on maximal value of muscle activation of flexor carpi ulnaris in male athletes(55>60>65) by types of racket string tension(p<.05). 2. There was significant difference on maximal value of muscle activation of extensor carpi ulnaris(55>60>65) in female athletes by types of racket string tension(p<.05). In conclusion, this study has proposed that the more a string tension is stiff, the less muscle activation is due to Trampoline effect that the less the tension is, the longer time a ball contact with racket is.
목차
Ⅰ. 서론 Ⅱ. 연구방법 1. 연구대상 2. 측정 방법 3. 자료처리 방법 Ⅲ. 결과 1. 요측 수근신근의 평균값 2. 척측 수근신근의 평균값 4. 척측 수근굴근의 평균값 5. 요측 수근신근의 최대값 6. 척측 수근신근의 최대값 7. 요측 수근굴근의 최대값 8. 척측 수근굴근의 최대값 Ⅳ. 논의 Ⅴ. 결론 및 제언 참고문헌 ABSTRACT
현대사회에 있어서 신체활동 연구의 주요 탐구과제는 ‘신체활동을 통한 교육’으로부터 ‘인간의 기본적인 움직임’을 목표로 하는 스포츠적인 움직임을 중심으로 한 생명 활동의 개념으로 급속히 변화되고 있는 추세이다. 이러한 환경변화에 대응하기 위하여 본학회는 ‘체육’적인 요소에서 ‘스포츠’적인 요소를 중심으로 한 학문적 정체성을 견고히 하고, 정기적인 학술지 발간과 학술활동을 통해 한국스포츠츠 문화의 발전과 학문적인 발전에 기여하는데 그 목적이 있다.