“旋转式技术”神经肌肉活动的内在规律——以冯杰为例-《体育科学研究》

文章信息/Info

Title:: The Inherent Law of Neuromuscular Activity When Pushing Different Weight Shots With “Rotary Technology”——Taking Feng Jie as an Example

作者:: 尹华跟1; 张葆欣2; 黄艺3; 叶萃蓬4; 马屹2; （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.岭南师范学院体育科学学院，广东湛江 524048）

Author(s):: YIN Hua-gen1; ZHANG Bao-xin2; HUANG Yi3; YE Cui-peng4; MA Yi2; (1.The Sports 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 Guizhou 554300，China;4.School of Physical Education,Lingnan Normal University,Zhanjiang 524048，China）

Keywords:: different weights; Feng Jie; rotary push shot technique; various technical stages; muscle activity; sEMG

摘要:: 本文通过实验研究来揭示冯杰采用的三种不同重量铅球的完整投掷技术过程中神经肌肉活动的内在规律和机理。笔者运用无线遥感肌电测试系统和高速摄像机对旋转式推铅球技术动作进行同步测试，结果显示：双支撑起转阶段（R↑）准备时间充足更有利于投掷技术的稳定发挥；右竖脊肌除了在投掷7.26 kg铅球的除最后用力阶段（♂）放电不足外，在投掷6 kg和8 kg铅球的整个技术阶段中均表现出较好的放电水平；投掷6 kg和8 kg铅球的肌肉激活效果要好于7.26 kg铅球，其中投掷8 kg铅球的效果最为明显。结论：左股二头肌和右股二头肌在整个动作过程中是主要用来肌肉；右竖脊肌、右臀大肌、左股四头肌、右股二头肌作用较大，值得深入研究。

Abstract:: Objective：The research revealed the inherent laws and mechanisms of neuromuscular activity during the complete throwing technique of Feng Jie’s use of three different weight shots.Methods：The wireless telemetry myoelectric test system and the high-speed camera were used to test synchronously the rotary shot put technique.Results：The enough preparation time of the double support rotation stage (R↑)is fully conducive to the stable development of throwing technology.The right erectorhinmus muscle showed a better discharge level during the entire technical stage of throwing 6kg and 8kg shots，except for the insufficient discharge during the final exertion phase (♂) of throwing the 7.26kg shot.The muscle activation effect of throwing the 6kg and 8kg shots was better than the 7.26kg shot，especially the 8kg shot.Conclusion：The left biceps femoris and right femoral biceps muscles are mainly used for muscle during the entire movement and right erector spinae，right gluteus maximus，left quadriceps，and right biceps muscles are more important,which is worth our in-depth study.