蹦床网上动作腾空技术的时空协同及训练应用  

Time and space coordination of leaping technology for moves made on a trampoline and its application in training

作　　者：朱礼金[1] 

机构地区：[1]菏泽学院体育系,山东菏泽274015

出　　处：《体育学刊》2012年第4期111-115,共5页Journal of Physical Education

基　　金：菏泽学院科学研究基金项目(XYJJSK-06)

摘　　要：对蹦床网上动作腾空技术的时空协同及训练应用进行了探讨,结果表明:蹦床网上动作腾空技术的时空结构主要是基于器械属性和人体运动轨迹的变化两个方面实现的,其中空间结构主要表现在水平位移和纵向位移两个部分,时间结构则体现在腾空、压网(包括着网时间、蹬伸时间)和起网3个时间要素。起网角度、压网深度、最佳蹬伸时机和立臂时机是影响时空结构的主要动力因素,腾空技术的训练应从合理起网角的选择、动作连接、上下肢力量、起跳协调性以及着网姿势等方面加强训练。The author probed into the time and space structures of leaping technology for moves made on a trampo- line and their affecting factors, analyzed the significance of and method for training with leaping technology in trampoline based on the theory of time and space coordination, and revealed the following findings： the time and space structures of leaping technology for moves made on a trampoline are realized based mainly on such two as- pects as instrument attributes and body movement locus changes, in which the space structure is mainly embodied in such two parts as horizontal displacement and vertical displacement, while the time structure is embodied in such three time elements as leaping, canvas pressing （including canvas landing time, striding time） and canvas leaving; canvas leaving angle, canvas pressing depth, optimal striding moment and arms stretching up moment are primary dynamic factors which affect the time and space structures; training with leaping technology should be strengthened in such aspects as the selection of a rational canvas leaving angle, move connection, upper and lower limb strength, takeoff harmony and canvas landing posture.

关 键 词：竞赛与训练 蹦床 腾空技术 时空结构 时空协同 

分 类 号：G812.5[文化科学—体育学]