CAJ | 학술논문

运用运动生物力学研究法,训练实验法,分析了背越式跳高弧线助跑起跳过程中身体重心和垂直速度的变化规律,认为背越式跳高起跳身体重心由低向高不断加速上升,垂直速度是由小到大不断加速增大是从助跑最后一步摆动腿垂直支撑开始到起跳腿蹬离地面结束的"两步"中完成的,起跳垂直速度是摆动腿支撑和起跳腿支撑下的"双动力"起跳中获得.弧线助跑起跳最大的优越性是经济实效地降低和升高身体重心,为身体重心运动方向提早转变和垂直速度提早积累创造有利条件.背越式跳高"双动力"起跳训练的中心是围绕以速度为核心的"一个中心;两个基本点;三个结合;四个平衡;五个途径;六个转化"进行起跳训练.
운용운동생물역학연구법,훈련실험법,분석료배월식도고호선조포기도과정중신체중심화수직속도적변화규률,인위배월식도고기도신체중심유저향고불단가속상승,수직속도시유소도대불단가속증대시종조포최후일보파동퇴수직지탱개시도기도퇴등리지면결속적"량보"중완성적,기도수직속도시파동퇴지탱화기도퇴지탱하적"쌍동력"기도중획득.호선조포기도최대적우월성시경제실효지강저화승고신체중심,위신체중심운동방향제조전변화수직속도제조적루창조유리조건.배월식도고"쌍동력"기도훈련적중심시위요이속도위핵심적"일개중심;량개기본점;삼개결합;사개평형;오개도경;륙개전화"진행기도훈련.
Though the biologic mechanical, the paper analysis on the variational rule about the center of body gravity of body and the upright speed in take- off technique. The result concludes that the position of the center of body gravity of body is the lowest and the the upright speed is the slowest in the last step at ran up when the swing leg upright to the jump leg take off the ground of top- level fesbury flop high jump athletes. The author shows that the center of body gravity is the ascending phase and the upright speed is the increase course.The take- off phase of Fosbury flop high jump is from the last step at ran up when the swing leg upright to the jump leg take off the ground, the jump is ＂double dynamical＂ that two legs both play the function, the most advantage of Fosbury flop high jump is economically depress and hoist gravity of body at ran up along the arc phase, and creative the advantage for the change the direction movement of body gravity and cumulating of upright velocity.