야구의 당겨치기와 밀어치기 동작의 비교 분석 = Comparative Analysis of Pull Batting and Push Batting Motions in Baseball

다국어 초록 (Multilingual Abstract)

The present study conducted a comparative analysis of high school baseball batters' pull batting and push batting motions focused on kinematical variables such as time by section, angle. speed and batting posture. From the results of this study were drawn conclusions as follows.
1. The point of time of pull batting impact was later than that of push batting impact.
2. The angle of the support leg at the moment of impact was open wider in pull batting motion.
3. The rotation angle of the upper body and the rotation angle of the pelvis at the moment of impact were higher in pull batting motion.
4. The knee of the drive leg at the moment of impact was bent slightly more in push batting motion.
5. The moving speed of the center from rear to front at the moment of the drive foot's stepping on the ground and impact was slightly higher in push batting motion.
6. The maximum transitional velocity of the bat and the maximum rotating velocity of the bat just before impact were slightly higher in push batting motion.
7. The direction of stride on the drive foot's stepping on the ground was slightly more advanced in push batting motion, and the length of stride was slightly longer in pull batting motion.
8. The difference of height between the hands and the end of the bat at the moment of impact was larger in pull batting motion, and the difference of horizontal front and rear position was larger in push batting motion.

참고문헌 (Reference)

1 한태륜, "한국 프로야구 및 대학 야구선수의 3차원적 타격동작 분석" 22-30, 1996

2 김정태, "야구의 타격동작에 따른 상체의 분절변화에 관한 연구 경남체육연구" 91-108, 1997

3 안영필, "야구경기에 있어서 타격동작의 역학적 분석" 1987199-210

4 null, "야구 배팅동작의 운동학적 분석" 건국대학교 대학원 1997

5 Shapiro, "Three dimensional kinetic analysis of the baseball swing University of Illinois at Urbana-Champaign" 1981

6 Pfautsch, E.W, "Kinematic analysis of the baseball batting swings involved in opposite-field and samefield hitting" 1982

7 Welch, "Journal of Orthopaedic and Sports Physical Therapy" 1995193-201

8 Hay, "Biomechanics of Sports Techniques" Prentice-Hall 1978

9 강민식, "3D 영상분석에 의한 배팅동작의운동학적 연구" 291-298, 1997