跆拳道後踢動作技術之生物力學分析

Biomechanical Analysis of Taekwondo Back Kick Technique

洪彰岑(Chang-Tsen Hong) ； 劉宇(Yu-Liu) ； 許昭興(Chao-Hing Hsu)

《體育學報》 35期 (2003/09) Pp. 69-81

https://doi.org/10.6222/pej.0035.200309.2407

摘要

This study investigated the biomechanical factors involved in the Taekwondo back kick technique. Data were obtained from ten test subjects of university Taekwondo teams. (age 21.0±2.4 years old, height 176.2±6.5 cm, weight 69.2±12.2 kg and years of practice 9.1±2.6 years.) The variables of kinematics and kinetics of the back kick movement were then analyzed using the Peak Performance 3D video motion analysis system (60Hz) and F-scan in-shoes force analysis system (l00Hz). The results through Pearson's product-moment correlation indicate that the angle of the torso forward increased with the decrease in the movement time; the angle between the kicking leg and the supporting one increased with the increase of the movement time (p＜.05). The punching power increased with the decrease of the time period between the time performing the maximum velocity of the gravity of the body's center and the time making contact with the punching bag (p＜.05). The punching power increased with the increase of both the torso rotational velocity and the power of the supporting leg (p＜.05). The punching power increased with the decrease of the angle of torso rotation and the angle of forward variant in the impact phase (p＜.05). The conclusions are: (l)To reduce the movement time and enhance the punching power in the back kick, the torso forward should be avoided and the two legs should be closer together, (2)The to increase the punching power, the time performing the maximum velocity of the gravity of the body's center should be closer to the time making contact with the punching bag. (3)In addition to the improvement of the skills in the back kick, the strength of the supporting leg should be enhanced through weight training.

關鍵字

運動生物力學 ； 跆拳道 ； 後踢

並列摘要

This study investigated the biomechanical factors involved in the Taekwondo back kick technique. Data were obtained from ten test subjects of university Taekwondo teams. (age 21.0±2.4 years old, height 176.2±6.5 cm, weight 69.2±12.2 kg and years of practice 9.1±2.6 years.) The variables of kinematics and kinetics of the back kick movement were then analyzed using the Peak Performance 3D video motion analysis system (60Hz) and F-scan in-shoes force analysis system (l00Hz). The results through Pearson's product-moment correlation indicate that the angle of the torso forward increased with the decrease in the movement time; the angle between the kicking leg and the supporting one increased with the increase of the movement time (p＜.05). The punching power increased with the decrease of the time period between the time performing the maximum velocity of the gravity of the body's center and the time making contact with the punching bag (p＜.05). The punching power increased with the increase of both the torso rotational velocity and the power of the supporting leg (p＜.05). The punching power increased with the decrease of the angle of torso rotation and the angle of forward variant in the impact phase (p＜.05). The conclusions are: (l)To reduce the movement time and enhance the punching power in the back kick, the torso forward should be avoided and the two legs should be closer together, (2)The to increase the punching power, the time performing the maximum velocity of the gravity of the body's center should be closer to the time making contact with the punching bag. (3)In addition to the improvement of the skills in the back kick, the strength of the supporting leg should be enhanced through weight training.

並列關鍵字

biomechanics ； Taekwondo ； back kick

參考文獻

Ahn, B. H.(1985).Unpublished masters thesis, Purdue University.

Bae, Y. S.(1988).Mechanical energy flow in a kicking leg during turning back kick motion of taekwondo.The Journal of Taekwondo Research.1

Chen, F. C.(1996).Unpublished manuscript. University of Oregon.

Elliott, B.,Marsh, T.(1989).A biomechanical comparison of the multisegment and single unit topspin forehand drives in tennis.International Journal of Sport Biomechanics.5(3)

Hwang, I. S.(1986).Mechanical analysis of Taekwondo spin-kick.Journal of Taekwondo.58