The Korean Journal of Physical Education (한국체육학회지)

Korean Alliance for Health: Physical Education: Recreation:and Dance (한국체육학회)
권호 표지

The Kinematic Analysis of Skating Technique Performed by Cross-Country Skiers in Uphill Slope

크로스컨트리 스키의 오르막 구간에 대한 스케이팅 주법의 운동학적 분석

Kim, Gap-Seon
김갑선

  • Published : 20030000
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Abstract

The purpose of this study was to obtain effective the data for developing and improve the cross country skiing techniques by comparing and analyzing kinematic variables of skating motion between skilled and unskilled skiers in uphill slope. The subjects of this study were six cross country skiers who were the members of university team. The motion performed by subjects were recorded using two video cameras at the speed of 60 fields per second. The motions were analyzed using the DLT(Direct Linear Transformation) method of 3 dimensional cinematography. The conclusions were as follows: 1. To increase a propulsive force, the waist has to be extended fully when begin poling and the waist force has to be transmitted poling force. Also, the arms have to be held out to the forward direction and ski pole has to be planted on the snow leaning to the body center direction. 2. To the race velocity increase, skiers has to be bent much at the beginning of skating phases. And then, at the end of skating phases, it is needed to straighten the knees full to the outside of snow, and then to kick. 3. To the race velocity increase, skiers has to provide a strong propulsive force to the gliding ski, by kicking to side, decreasing the ski angle concerning course direction. 4. Even though cycle length, velocity, rate are affected by the difference of slope in controlling of velocity skating, cycle length and rate have to be increased in order to increase the race velocity, because cycle length and rate are related to race velocity.

Keywords

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