Analysis of kinematic characteristics of whipping technique in sanda athletes with different sports levels

摘要：
探寻不同运动等级散打运动员在使用鞭腿技术动作时,下肢关节运动学特征所出现的差异与运动等级之间的关系,为优化鞭腿技术动作及其击打效率提供理论依据.运用三维红外运动捕捉系统和地面测力系统,对23名不同运动等级散打运动员鞭腿技术的运动轨迹进行采集.将运动轨迹进行划分为4个时刻和3个时段,分别对每个时刻和时段上运动学特征的差异进行比较.不同运动等级运动员鞭腿技术的运动形式符合鞭打动作特点,支撑腿和进攻腿各关节的活动度具有显著性差异.优秀组鞭腿技术的击打目标位置更靠近身体前方的中线位置,启动时段更短,动作速度在启动时段和回收时段更快.优秀运动员通过加大躯干和支撑腿绕纵轴转动幅度使身体重心前移,来提升技术动作的启动速度;通过加大进攻腿膝关节的屈曲来缩短肢体转动半径,来加快击打时段大小环节的传递速度;通过支撑腿关节屈伸的活动度和动作位移稳定重心平衡,来优化鞭腿技术在回收时段的动作流畅性.

This paper explores the variable relationship between kinematic characteristics of lower limb joints and movement levels of sanda athletes with different movement levels when using flagellate technique,so as to provide theoretical basis for optimizing the movement and impact efficiency of flagellate technique.Using 3D motion capture system and infrared force measurement and control system on the ground,about 23 different sports level sanda athletes and track players were observed technically.Trajectory is divided into 4 times and 3 periods,respectively for each time and period the kinematics characteristics of the differences in comparison.The results showed that the movement forms of the flagellate technique in the 2 groups were in line with the characteristics of the whipping action,and the range of motion of each joint of the supporting leg and the attacking leg showed significant differences.The striking point of the flagellate technique in the excellent group was parallel to the median line of the trunk,while the stability of the center of gravity in the ordinary group was relatively poor during the recovery period.The action time of the excellent group was lower than the ordinary significantly.The action speeds at starting and the recovery period of the excellent group were higher than the ordinary significantly.Excellent athletes,by increasing their trunk and support leg longitudinal axis rotation range to make the body center of gravity forward,improve the starting speed of the technical movement.By increasing the flexural angle of the knee joint of the attacking leg,the rotation radius of the limb is shortened.Thus the transmission speed of the big and small links in the hitting period is accelerated.The center of gravity balance is stabilized by the motion and movement displacement of the supporting leg joint,thus improving the movement fluency of the flagellum technology during the recovery period.

作者：
刘国立 李杰 马世坤 袁点 苏健蛟

Liu Guoli;Li Jie;Ma Shikun;Yuan Dian;Su Jianjiao(College of Wushu,Wuhan Sports University,Wuhan 430079,China;Research Centre for Northeast Asian Ethnic Traditional Sports,Wuhan Sports University,Wuhan 430079,China;China Wushu School,Beijing Sports University,Beijing 100084,China)

机构地区：
武汉体育学院武术学院 武汉体育学院东北亚民族传统体育研究中心 北京体育大学中国武术学院

出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2022年第3期150-156,共7页

Journal of Henan Normal University(Natural Science Edition)

基金：
国家社科基金(17BTY110) 国家体育总局武术研究院项目(WSH2019A004) 武汉体育学院中青年科研团队资助(21KT12) 武汉体育学院东湖学者计划资助(2018).

关键词：
运动等级 鞭腿技术 动作特征

motion level Flagellum technology movement characteristic

分类号：
G852 [文化科学—民族体育]

不同运动等级散打运动员鞭腿技术的运动学特征分析.pdf