铅球“滑步”与“旋转”最后技术的生物力学分析-《体育科学研究》

文章信息/Info

Title:: Biomechanical Research on the Last Key Technology of “Sliding Step” and “Rotation”

作者:: 尹华跟1; 张葆欣2; 黄艺3; 刘娜4; 刘刚1; 童立涛1; 陈夏1; （1.上饶师范学院体育学院，江西上饶 334001；2.西安体育学院健康科学系，陕西西安 710068；3.贵州健康职业学院人文基础部，贵州铜仁 554300；4.云南民族大学中印瑜伽学院，云南昆明 650500)

Author(s):: YIN Hua-gen1; ZHANG Bao-xin2; HUANG Yi3; LIU Na4; LIU Gang1; TONG Li-tao1; CHEN Xia1; (1.The Sport School of Shangrao Normal University,Shangrao 334001,China;2.Department of Human Movement Science,Xian Institute of Physical Education,Xi’an 710068,China;3.Guizhou College of Health Professions,Tongren 554300,China;4.India-China Yoga College,Yunnan Minzu University,Kunming 650500,China)

关键词:: （1.上饶师范学院体育学院; 江西上饶 334001; 2.西安体育学院健康科学系; 陕西西安 710068; 3.贵州健康职业学院人文基础部; 贵州铜仁 554300; 4.云南民族大学中印瑜伽学院; 云南昆明 650500)

Keywords:: shot; sliding shot putting; rotary shot putting; final force technique; kinematics; sEMG

摘要:: （1.上饶师范学院体育学院，江西上饶 334001；2.西安体育学院健康科学系，陕西西安 710068；3.贵州健康职业学院人文基础部，贵州铜仁 554300；4.云南民族大学中印瑜伽学院，云南昆明 650500)

Abstract:: In order to explore and analyze the technical movement characteristics and the internal law of muscle activity in the last force stage of “Sliding Step” and “Rotation”.In this research,high-speed camera and remote-sensing electromyograph were used simultaneously to test and analyze the final exertion stage of the two throwing techniques of backslide and rotary shot putting adopted by the Shaanxi key shot putter (Feng Jie)in the pregame training.The results showed that:(1)The right ankle joint is relatively active in both throwing techniques,but the left leg support technique is not ideal when the left foot touches the ground (L↓);In addition,both throwing techniques have a slow left knee speed.(2)The shooting angle of the two throwing techniques is reasonable at the moment of the final shot of the shot.(3)The muscle force sequence of the sliding technique appears to be disordered in the final force stage;the muscle force sequence of the rotation technology conforms to the transfer process from right to left and bottom to top in the final force stage.(4)The main forcegenerating muscle of the sliding technique is the flexor of the right wrist joint and the right spine erector;The main force muscles of rotation technique are right quadriceps and left quadriceps.