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윤축을 적용한 좌·우 주관절 신전 동작의 운동역학적 비교 연구

Comparative Study of Biomechanical Left and Right Elbow Joint Extension Movements After Wheel Axle Application

  • 김성주 (한양대학교 체육대학 체육학과)
  • Kim, Sung-Joo (Department of Physical Education, College of Physical Education, Hanyang University)
  • 투고 : 2011.07.01
  • 심사 : 2011.12.16
  • 발행 : 2011.12.31

초록

In this study, we have experimented with 9 players at the national delegate level. Although there were some differences in the average effects of 3 types of one-two straight movements after the application of wheel axle, there were no statistical differences in the case of surface reacting forces, electromyograms, and impact forces. When the right fist was impacted using the one-two straight movements and the wheel axle was applied with 3 segmentations, high impact forces were obtained for the pronation in the following order-72.01 $m/s^2$ (type 2), 70.93 $m/s^2$ (type 3), and 58.19 $m/s^2$ (type 1). Higher values of the surface reacting force were found for type 1 that did not exhibit pronation in the left foot, whereas in the case of the vertical direction of the right foot, type 2 with pronation exhibited higher values and impact forces. In the right electromyogram, high impact forces due to the activation of the muscular electric potential were obtained for lumbar erector (LE) spinae and triceps brachii (TB) with type 1; LE spina, latissimus dosi (LD), and upper trapezius (UT) with type 2; and brachioradialis (BR), UT, and rectus abdominal (RA) with type 3. Due to pronation and complex motions of the 3 pronation segmentations, the efficiency was higher for impacts due to one-two straight movements.

키워드

참고문헌

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