Kinematic factors of Antioquia ski jumpers

Abstract

This study analyzed the behavior of the center of gravity in the high jump event in three jumpers (two men and one woman) belonging to the Antioquia and Colombia national teams, who participated in the 2006 National Championships. The main objective was to analyze the center of gravity (CG), from which the following were calculated: height at takeoff, maximum height during flight, projection angle, and vertical velocity at takeoff. SILICON COACH PRO® software, two SONY digital cameras, and the Kinematrix® program were used. The results showed that the maximum height of the center of gravity was 1.47 and 1.42 m for men and women, respectively, and was within the international values for high-performance athletes. The elevation of the center of gravity for men (0.81–0.92 m) was also in line with the values for world-class athletes. in the case of female athletes (0.69 m), this value is low compared to world athletes. The total height of the center of gravity elevation (2.28 - 2.34 - 1.98 m) was within the international ranges for high-performance athletes. The vertical velocity of the CG for men (4.04 and 4.23 m/s) was close to the international values for elite athletes, and their center of gravity projection angle (45° and 43°) ranged close to that of the world's elite.