現代舞踊 Leg Twist 動作의 力學的 分析

Abstract

In this thesis, it was analyzed 5 dancers whose modern dance career were 10 years and 5 students whose career were 1 year as the subject of investigation in order to analyze the leg t w i s t motion among modern dance motions. It was used by 16mm motion picture camera as a analytical method to analyze the motions; and gained the conclusion from the result of measurement of a moved area of center of gravity i n force plate. 1. An unskilled person's necessary t i m e of motion was longer than an expert's when they act leg twist motion. 2. An expert's still time between ready posture and leg i n motion leg in and turn out motion, between turn out and stretch motion was shorter than unskilled person's. 3. The angle of Both arms that was seen from an angle of joint in frontal View of the performer, the angle of an expert w a s narrower than the unskilled person's; and the expert's angle of Both legs was larger than the unskilled Person's when they were stretching. 4. The expert's Knee angle of action leg was larger than the unskilled person's when they were leg in and turn out. 5. The expert's angle of supporting leg seen from the lateral View was larger than t h e unskilled person's. 6. The expert's transfer of center of gravity was smaller than the unskilled person's; and the expert's transfer of center of gravity was a round shape but the unskilled were deformed shape.;現代 舞踊의 基本 動作인 Leg Twist 動作을 4개 動作으로 나누어 分析, 比較하므로써 指導, 訓練, 評價를 위한 基礎資料를 提示하고자, 現代 舞踊經歷이 10年 이상인 舞踊手 5名과 舞踊經歷이 1年 미만인 學生 5名을 對象으로 力學的 分析을 하였다. 分析方法으로는 16㎜ Motion Picture Camera 및 Force Plate를 使用하여 各 動作間의 所要時間 및 各 關節의 角度, 그리고 動作時 重心 移動을 測定 分析한 結果 다음과 같은 結論을 얻었다. 1. Leg Twist 動作時 未熟練者가 熟練者에 比해 動作의 所要時間이 길었다. 2. Leg Twist 動作時 準備姿勢에서 Leg in 動作 사이의 停滯時間과 Leg in에서 Turn out動作 사이의 停滯時間 및 Turn out에서 Stretch 動作 사이의 停滯時間은 熟練者에 比해 未熟練者가 길었다. 3 .前面에서 본 各 動作時 關節의 角度에서의 두팔의 角度는 未熟練者가 熟練者에 比해 角度가 좁았으며 Stretch 動作時 두 다리의 角度는 熟練者가 未熟練者에 比해 컸다. 4. 動作한 다리의 무릎 角度는 Leg in 動作과 Turn out 動作時 未熟練者보다 熟練者가 컸다. 5 .側面에서 본 支持하는 다리의 무릎 角度는 未熟練者에 比해 熟練者가 컸다. 6. 重心 移動에서는 熟練者가 未熟練者보다 重心 移動이 적었으며 熟練者의 重心 移動은 圖形을 그리고 未熟練者는 左, 右, 前, 後로 크게 움직였다.