발레 Développé à la Seconde 동작 시 하지의 운동학적 변인 비교 분석

Abstract

This In this study, duration of the movement, shift in center of the body, difference in the height of the knees, angle of the ankle, knee, hip-joint, angle of the trunk inclination of two sample groups one of 5 skilled with training for more than 7 years and another of 5 unskilled with training less than 2 years executing "développé à la seconde" were analyzed using 3-dimensional image analysis, followed by comparative analysis. 1) Timing Variation No significant difference observed. Inter-phase comparative analysis shows the greatest timing variation in PH4. 2) Positioning Variation Inter-group comparative analysis of shift in center of the body shows significant differences in E3, E4. Inter-event comparative analysis shows significantly high value in E3, E4 for the skilled group, and in E2, E3, E4 for the unskilled group. 3) Angular Variation Inter-group comparative analysis of the angle of the ankle joint shows significant differences in E2. Inter-event comparative analysis shows significantly high value in E2 for the skilled group, and in E2, E3, E4 for the unskilled group. Inter-group comparative analysis of the angle of the knee joint shows no significant difference. Inter-event comparative analysis shows significantly high value in E4 for the skilled group, and in E4, E5 for the unskilled group. Inter-group comparative analysis of the angle of the hip joint shows no significant difference. Inter-event comparative analysis shows significantly high value in E3, E4 for both the skilled and unskilled group. Inter-group comparative analysis of the angle of the trunk inclination shows significant differences in E3, E4. Inter-event comparative analysis shows significantly high value in E3, E4 for the skilled group, and in E4 for the unskilled group In conclusion, for the correct execution of développé à la seconde, pull up is a necessity in order for maintaining balance relevant to the duration of the movement. Also, knees must be maintained at the maximum possible height through the motion leading to développé from passé through attitude. Larger angle between the supporting leg and the hip joint results in superior aesthetics and functionality, and although the wider range of motion of lower extremity require inclination of the upper body for stability, for the aesthetic purpose upright positioning of the upper body should be practiced.