CAJ | 학술논문

采用文献资料法、三维运动录像解析法对跳远起跳过程各阶段下肢摆动腿技术特征；起跳过程中下肢摆动技术与跳远成绩相关性；下肢摆动技术与上板速度、身体重心腾起初速度、起跳水平速度、垂直分速度及腾起高度等之间关系的研究。结果表明：我国优秀男子跳远运动员在下肢的摆动技术上有一定的缺陷；着板瞬间起跳腿髋角较小，向上向前送髋不积极；摆动腿髋角较大，摆动腿侧以髋带腿的摆动幅度小、摆动速度慢；摆动腿侧髋关节明显滞后于腿的前摆，摆动腿侧髋关节没有起到以髋带腿的作用，摆动腿的前摆不能适应起跳节奏；缓冲阶段，摆动腿一味强调加快摆腿而没有意识到髋关节这一发动机的重要性，忽略了以髋带腿的加速前摆动作；蹬伸阶段，起跳腿侧向前送髋速度慢、幅度小、蹬地不够充分、不能将起跳时蕴积的力量凝聚在一起，与送髋、蹬地和伸膝的运动方向保持一致，协助身体重心的交换由下到向上向前转移。
채용문헌자료법、삼유운동록상해석법대도원기도과정각계단하지파동퇴기술특정；기도과정중하지파동기술여도원성적상관성；하지파동기술여상판속도、신체중심등기초속도、기도수평속도、수직분속도급등기고도등지간관계적연구。결과표명：아국우수남자도원운동원재하지적파동기술상유일정적결함；착판순간기도퇴관각교소，향상향전송관불적겁；파동퇴관각교대，파동퇴측이관대퇴적파동폭도소、파동속도만；파동퇴측관관절명현체후우퇴적전파，파동퇴측관관절몰유기도이관대퇴적작용，파동퇴적전파불능괄응기도절주；완충계단，파동퇴일미강조가쾌파퇴이몰유의식도관관절저일발동궤적중요성，홀략료이관대퇴적가속전파동작；등신계단，기도퇴측향전송관속도만、폭도소、등지불구충분、불능장기도시온적적역량응취재일기，여송관、등지화신슬적운동방향보지일치，협조신체중심적교환유하도향상향전전이。
Depending on the methods of literature, 3 - D video analysis, interviews, mathematical statistics and logical analysis, the paper researches the techniques of the swinging legs in every phases, the correlation between the swinging leg techniques and performance in the process, the relationship between leg swinging techniques and boarding speed, the initial speed of body gravity at takeoff, the horizontal velocity of takeoff, the vertical component velocity and the take -off speed. The research results show that： 1. there swinging techniques; 2. The hip angle at the takeoff is small, are some defects in China~ top long jumpers in their leg leading to inactive forward and upward hip push; 3. The hip angle of the swinging leg is big while the swinging amplitude of the side hip points is small with slow speed ; 4. The side hip of the winging leg significantly lags behind the front leg without being able to function as the leg on the part of the hip and the front swing of the swinging leg can not fit the take - off speed. ; 5. In the buffer period, over emphasis is put on the the quick swing of the swinging leg without realizing the importance of hip points serving as an engine ; 6. In the period of pedaling and extending, the take - off leg shows slow and small amplitude in hip push and insufficient pedaling, leading to the failure to gather all the power collected when taking off to maintain the same direction of hip push, pedaling and knee extending and to held the transfer of the bodv zravitv from the lower to the upper body.