女子跳遠選手起跳時手臂腿部動作對成績表現之影響

The Analysis of Infence of Swinging Arms and Free Legs of Female Lolung Jumpers on Performance

陳建勳(Jian-Shium Chen)

《運動教練科學》 6期 (2006/03) Pp. 51-59

https://doi.org/10.6194/SCS.2006.06.06

摘要

Purpose: To explore the influence of female long jumpers swinging arms and free legs motions on performance. Method: This study used three cameras with a speed of 60 frames per second to record the jumpers performance in the 2005 International Track and Field Competition. According the Dempster model (1955) to record 14-segments and 21-joint points on the jumper's performance through the Kwon3D analysis software to analyze the dates. Results and Conclusions: First, the angle of the moving leg during the support phase was bigger than that during the push-off phase, and, during the buffer phase, the angle of the moving leg correlated significantly with the performance (r=0.675、r=0.636, p＜.05). That is to say the fast-moving motions of the moving leg during the buffer phase would influence performance. Second , changes in the angle of the take-off leg and the moving leg were significantly correlated with the vertical velocity during the support phase(r=0.730, p＜.05), which means a bigger angle of the two legs contributed to the increase of vertical velocity. Third, in the support phase, the angle of upper swing and vertical velocity will get the correlate meaning in middle height (r=0.510, p＜.05)., to gaint the angle of upper swing will advantage the acquirement of vertical velocite. Fourth, the moving degree of the moving leg achieved high-intermediate correlation with the hip-joint of the take-off leg, which indicates that the greater the moving degree is, the better the hip-stretching motion of the take-off leg is. It has positive meaning on the elevation of the take-of effect. Suggestion: To strengthen the training of the upper swing angle and the leg swing velocity will adventage to acquire vertical velocity to promote performance.

關鍵字

跳遠 ； 擺臂動作 ； 擺動腿 ； 起跳腿 ； 角動量

並列摘要

Purpose: To explore the influence of female long jumpers swinging arms and free legs motions on performance. Method: This study used three cameras with a speed of 60 frames per second to record the jumpers performance in the 2005 International Track and Field Competition. According the Dempster model (1955) to record 14-segments and 21-joint points on the jumper's performance through the Kwon3D analysis software to analyze the dates. Results and Conclusions: First, the angle of the moving leg during the support phase was bigger than that during the push-off phase, and, during the buffer phase, the angle of the moving leg correlated significantly with the performance (r=0.675、r=0.636, p＜.05). That is to say the fast-moving motions of the moving leg during the buffer phase would influence performance. Second , changes in the angle of the take-off leg and the moving leg were significantly correlated with the vertical velocity during the support phase(r=0.730, p＜.05), which means a bigger angle of the two legs contributed to the increase of vertical velocity. Third, in the support phase, the angle of upper swing and vertical velocity will get the correlate meaning in middle height (r=0.510, p＜.05)., to gaint the angle of upper swing will advantage the acquirement of vertical velocite. Fourth, the moving degree of the moving leg achieved high-intermediate correlation with the hip-joint of the take-off leg, which indicates that the greater the moving degree is, the better the hip-stretching motion of the take-off leg is. It has positive meaning on the elevation of the take-of effect. Suggestion: To strengthen the training of the upper swing angle and the leg swing velocity will adventage to acquire vertical velocity to promote performance.

並列關鍵字

long jump ； swing arms ； free legs ； takeoff leg ； angular momentum

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