Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
권호 표지
DOI QR코드

DOI QR Code

The Analysis on the Changes in Beginners Batting Movements through Undergraduate Baseball Lectures

대학 야구 강의를 통한 초보자의 타격 동작 변화 분석

  • Chun, Young-Jin (Department of Physical Education, College of Education, Seoul National University)
  • 천영진 (서울대학교 사범대학 체육교육과)
  • Received : 2012.07.31
  • Accepted : 2012.09.01
  • Published : 2012.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this study was to find out the changes in beginners' batting movements after taking undergraduate baseball lectures, by comparing and analyzing the speed of bat, the angle of body and its segments, the angular velocity and so on. For this purpose, the author picked up five undergraduates who had not taken baseball lectures, and conducted three-dimension computerized tomography twice on them, that is, before and after taking baseball classes, with eight infrared cameras and two force platforms. The conclusions are, first, the time required for swing was shortened after taking the classes. Second, the maximum velocity of the bat-end was increased. Third, at the time of impact, while the rotation angles of the pelvis and the tip of left foot were increased, the left elbow had more flexion after the classes. Fourth, the size of ground reaction force was increased at the point of swing where the ground reaction force of left foot became maximized. As we can infer from these conclusions, beginners' hitting movements before taking baseball classes tended to swing only with the arms, without waist rotation and weight shift of the lower body, but after the classes, their movements were proved to be corrected into the swing using the lower body. For the future studies, the author expects a research in a close to real environment by using pitching machine.

Keywords

References

  1. An, Y. P.(1987). A mechanical analysis of batting motion in baseball. The Korean Journal of Physical Education, 26(2), 199-210.
  2. Bae, W. H.(1992). A study of biomechanical factors affecting the ball velocity and the ball control during overarm pitch in baseball. Unpublished Doctor's Thesis, Graduate School of Kyungpook National University.
  3. Chang, S. H.(2009). The kinematic analysis of baseball batting motion of university baseball players. Unpublished Master's Thesis, Graduate School of Konkuk University.
  4. Choi, H.(2012). A comparative analysis of biomechanical the tee-ball batting patterns between middle school baseball players and students. Unpublished Master's Thesis, Graduate School of Korea National University of Education.
  5. Han, T. R., Yoo, M. J., Chung, S. G., & Lee, S. G.(1996). Three dimensional batting motion analysis of korean professional and college baseball players. The Korean Journal of Sports Medicine, 14(1), 22-30.
  6. Inkster, B., Murphy, A., Bower, R., & Watsford, M.(2010). Differences in the kinematics of the baseball swing between hitters of varying skill. Journal of Science and Medicine in Sport, 12, e12-e13.
  7. Kang, M. S.(1996). Biomechanical analysis of baseball batting. Journal of Physical Education Sports Leisure Studies, 3(1), 165-174.
  8. Kang, M. S.(1997). A study on the 3-D cinematographic biomechanics analysis of baseball batting. The Korean Journal of Physical Education, 36(1), 291-298
  9. Katsumata, H.(2007). A functional modulation for timing a movement: A coordinative structure in baseball hitting. Human Movement Science, 26, 27-47. https://doi.org/10.1016/j.humov.2006.09.005
  10. Kim, J. T.(1994). A Study of dynamic movement of center of gravity and joint change in batting of baseball. Unpublished Doctor's Thesis, Graduate School of Dong-A University.
  11. Lee, G. B.(1998). The kinematic analysis of over-arm fast pitching motion for elementary, high-school and college pitchers. Unpublished Doctor's Thesis, Graduate School of Seoul National University.
  12. Lee, Y. S.(2003). The study of batting characteristics in elite baseball players. Korean Journal of Sport Biomechanics, 13(1), 173-184. https://doi.org/10.5103/KJSB.2003.13.1.173
  13. Miyanishi, T.(2007). Effects of elbow extension of leading arm on bat head velocity in baseball batting. Poster session presented at the International Society of Biomechanics Congress, Taipei.
  14. Welch, C. M., Banks, S. A., Cook, F. F., & Draovitch, P.(1995). Hitting a Baseball: A biomechanical description. Journal of Orthopaedic & Sports Physical Therapy, 22(5), 193-201. https://doi.org/10.2519/jospt.1995.22.5.193

Cited by

  1. A Comparative Analysis of Biomechanical Factors and Premotor Time of Body Muscles between Elite College and Amateur Baseball Players during the Baseball Batting Motion vol.26, pp.2, 2016, https://doi.org/10.5103/KJSB.2016.26.2.205