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K. S. YOO, The Effects of Velocity of Propulsion on the Degree of Hardship Performance during a Figure Skating. Korean Journal of Sport Biomechanics, Vol. 17, No. 3, pp. 165-172, 2007. The purpose of this study was to examine the effects of the result of hardship performanc e of the propulsion speed on the flying carmel spins during a Figure Skating. The subjects were five the korea national representative players. Kinematic variables were analyzed 5frame of the excursion phase by the th ree-dimensional motion analysis system(60Hz). The obtained conclusion were as follows: In this study, during the propulsion classify two groups as "type Ⅰ" the acceleration patterns S3, S4 and "type Ⅱ" the uniform velocity group S1, S2, S5.The results of percentage comparative analysis between type Ⅰand typeⅡ can be summarized as below: the height of jump(24%), the height of COM(25%), the maximum speed of Roundhouse Kick(21%), the judging technical score(18%), the flight time(13%), the velocity of spi ns(4%), the distance of flight(-6%) Analysis of the results on performance variables, the velocity pattern of the type Ⅰshowed comparatively excellence than that of type Ⅱ. KEYWORDS : VELOCITY PATTERN. PROPULSION SPEED, HARDSHIP PERFORM ANCE, FIGURE SKATING