자연과학편 : Trampoline에 있어서 Tuck front Somersault동작(動作) 영상분석(映像分析)의 기초실험(基礎實驗) 보고(報告) = Cinematographical Analytical Prestudy of Tuck front Somersault Motion on a trampoline

다국어 초록 (Multilingual Abstract)

This study was to make a cinematogrphical analysis on tuck front somersault motion of Trampoliners. The tuck front somersault motion is a basic and important in a trampoline. The main purpose of this study was to obtain model and information pertaining to the tuck front somersault motion on the trampoline. The subject of this study was focused on the fact-finding of the concrete physical difference between the two body controlling methods in tuck front somersault, namely, not-front-transfer acting (sub-A and Sub-a’) and front-transfer acting (Sub-B and Sub-b’). To this end the writer has selected four male trampoliners from the S.K. K University, two trampoliners of whom he thought to belong to the highily skilled performers (Sub-A and Sub-B : exprience; 5 years) and the other two to the poorly skilled performers (Sub-a’ and Sub-b’ exprience; 1 year) by each subjecters were recorded with a 16mm motion picture camera with speed of 64 frame per second at located of horizontal view.The results of this study were summarized as follows;Data of experiment1. As for the angle of waist at bed up in tuck front somersault motion; Sub-A; 140˚ Sub-B; 140˚ Sub-a’; Sub-b’; 124˚2. As for the angle of waist position from vertical line at bed up in tuck front somersault mation; Sub-A; 6˚ Sub-B; 2˚ Sub-a’; 9˚ Sub-b’; 4˚3. In height of vertical distance of Jump, the highly skilled group was higher than the poorly Skilled group.4. Concerning the flying time (frombed up till bed Down), the highly skilled group stayed longer than the poorly skilled group.