철봉 엔도 360°엘그립 동작의 기술분석

Abstract

This study was attempted to Kinematical characteristics of the Endo <TEX>$360^{\circ}$</TEX>El-grip Swing on the horizontal bar. To do this, we selected and analyzed the performance of two athletes who did Endo <TEX>$360^{\circ}$</TEX>El-grip Swing in the horizontal bar competition of male artistic gymnastic in the 22nd Universiad Games 2003 Daegu. We drew the conclusions from the kinematical factors that were came out through analyzing three-dimensional cinematography of the athletes' movements, by using two video cameras. In point of analyzing the actual competition situation, it is expected that gymnastics and coaches have the effective informations, and the following conclusion had resulted. 1. When performing Endo <TEX>$360^{\circ}$</TEX>El-Grip, the average for entire required time was <TEX>$1.93{\pm}0.06sec$</TEX>. The average for descent phase time was <TEX>$0.24{\pm}0.02sec$</TEX>, ascent phase time was <TEX>0.22${\pm}0.07sec$</TEX>, connecting phase time was <TEX>$0.87{\pm}0.07sec$</TEX>, and El-Grip phase time was <TEX>$0.61{\pm}0.02sec$</TEX>. The descent phase need short period of time but however to have a stable performance, ensuring ascent and connecting phase time are needed. El-Grip phase need short period of time to have a stable re-grasp. 2. To have a convenient preparation for El-Grip in descent and ascent phase, lowering CM, and ease up in sway and plunge from the High Bar would make descent and ascent even more faster and would have increase effect in trunk rotation. 3. In descent and ascent phase, if shoulder angle and arm slope is dwindling then it would effect rotation angle so might risk it from hitting a Bar when putting legs in and out. 4. In connecting phase, it requires some time to show stable performance when El-Grip phase is continued by using hip angle which would make trunk rotation angle bigger and make descent and ascent time slower. 5. In El-Grip phase, when doing motions like hand standing. using hip angle more than maximum would make CM even faster and it is stable position while performing.