浙江省优秀青年男子排球运动员强攻扣球手臂挥摆动作运动学与表面肌电学分析  

Analysis on Kinematics and Surface Electromyography of Arm-Swing Movement of Power Spikes for Young Men's Volleyball Players in Zhejiang Province

作　　者：郑兆云[1] 

机构地区：[1]温州医学院,浙江温州325035

出　　处：《中国体育科技》2011年第2期37-41,共5页China Sport Science and Technology

摘　　要：目的:探讨青年男子排球运动员强攻扣球技术动作的关键;方法:使用两台高速摄像机和表面肌电仪对7名青年男子排球运动员强攻扣球手臂挥摆动作进行运动学和表面肌电学同步分析;结果:运动员在引臂后拉期主要由三角肌前束和三角肌后束完成,在甩臂击打期和击打作用期,肱三头肌、背阔肌、前臂屈腕的这些主动肌的电活动明显增强,起拮抗作用的肱二头肌和前臂伸腕肌群的电活动也非常强烈,而且,在各个阶段每对主动肌/拮抗肌表现为较好的协调性;背弓角为130.2°±4.7°、挥臂角为113.2°±6.1°、最后出手球速为23.5±0.7 m/s;背弓角,挥臂角与最后出手球速的相关系数r分别为-0.512(P<0.05)和0.484(P<0.05);结论:在强攻扣球手臂挥摆过程中,扣球臂的拮抗肌发挥着重要作用,起跳后挥臂的背弓角和挥臂角是影响最后出手球速的主要因素。Objectives：To study the character of arm-swing movement in power spike for young men＇s volleyball players.Method：Seven young men＇s volleyball players performed an arm-swing movement in power spike,which were synchronously analyzed by surface electromyography and kinematics.Result：The results indicated that deltoid anterior portion and deltoid posterior portion played an important role during pulling arm forwards and afterwards phase;the electrical activities of agonists including triceps brachii,latissimus dorsi and flexor carpi ulnaris,and antagonists including biceps brachii and extensor carpi ulnaris significantly increased during arm-swing and hitting phase.There was a perfect coordination between agonists and antagonists.The arm-swing angle（130.2±4.7°）,back-hunching angle（113.2±6.1°）,the ball-release velocity（23.5±0.7m/s）;the arm-swing angle and back-hunching angle were significantly related to the ball-release velocity,correlation coefficient was-0.512（P 0.05）,0.484（P 0.05）respectively.Conclusions：The antagonists of the swing-arm played an important role in power spike.In addition,arm-swing angle and back-hunching angle were influencing factors of ball-release velocity.

关 键 词：排球 青年男子 优秀运动员 强攻扣球 挥摆动作 运动学 表面肌电 浙江 

分 类 号：G804.2[文化科学—运动人体科学]