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강상학 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2
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.