Abstract
J. K. RYU, J. K. CHANG, H. C. YEO, and J. W. LIM, Comparison of Kinematic Variables of the Elite Woman's 100m Hurdler. Korean Journal of Sport Biomechanics, Vol . 17, No. 4, pp. 149-156. The purpose of this study was to compare the world class women's hurdlers with kinematic variables Lee Yeon-Kyoung's in the 100m hurdle. Among korea elite female hurdler, Lee Yeon-Kyoung was participated as a subject. Eight JVC video cameras(GR-HD1KR) were used to film the performance of Le e Yeon-Kyoung at a frame rate of 60fields/s. The real-life three-dimensional coordinate data of digitized body landmarks were smoothed using a fourth order Butterworth low pass recursive digital filter with an estimated optimum cutoff frequency of 7.4Hz. After analyzing and comparing Lee Yeon Kyung's kinematic variab les with the world top class hurdlers in the woman's 100m hurdle run, the following conclusions were obt ained.1. Lee should be able to increase the speed with over 5.4m/s from start to first hurdle and then maintain the speed range from 8.33m/s to 8.67m/s until 10th hurdle. Lee should have to maintain the speed with 8.51m/s from 10th hurdle to finish line.2. Lee has to reach her maximum running speed at 5th hurdle and then has to shorten running time with 0.5sec between hurdles.3. Lee should be able to run around 2.5sec from start to frist hurdle and then maintain under 1.00sec following phases. Lee should be able to maintain under 1.10sec from 10th hurdle to finish line.4. Lee needs to control a consistent takeoff and landing distan ce pattern, Lee needs to lower the height of the center of gravity of the body with 0.33m when she clears the hurdles KEYWORDS : HURDLE, SPEED, FINISH, START, PHASE
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