不同支撑面上徒手练习动作核心区肌肉肌电分析  

Trunk Muslces' s EMG of Bare-Handed Movements in Different Platforms

作　　者：岳建军[1] 龚俊丽 周燕[2] 

机构地区：[1]安徽师范大学体育学院,安徽芜湖241000 [2]华东师范大学体育与健康学院,上海200241

出　　处：《北京体育大学学报》2015年第9期52-57,共6页Journal of Beijing Sport University

基　　金：教育部人文社会科学青年基金项目(编号:13YJC890043);安徽省重大教学改革研究项目(编号:2014ZDJY025)

摘　　要：目的:比较3种徒手练习动作俯卧撑、仰卧起坐和俯卧转体180°分别在地板、BOSU球、瑞士球和平衡板4种支撑面上的运动员核心区肌肉肌电数值差别,探讨稳定与非稳定练习对相关肌群刺激程度,重新认识核心训练的实质,为核心稳定性训练手段的优化提供依据。方法:以15名高水平健美操运动员为研究对象,运用Noraxon公司的Telemyo2400DTS16通道表面肌电系统对在4种支撑面上3种常用练习动作下的核心区肌肉肌电数据进行分析。结果:运动员在完成仰卧起坐练习时,只有在地板上其竖脊肌积分肌电值有显著性差异(P<0.05)。俯卧撑练习时,BOSU球与瑞士球、地板与瑞士球、平衡板与瑞士球相比,运动员腹直肌的积分肌电值有显著性差异(P<0.05),其中后2种相比,运动员腹斜肌积分肌电值有非常显著差异(P<0.01);运动员胸大肌积分肌电值地板与BOSU球相比有非常显著性差异(P<0.01),地板与瑞士球相比有显著性差异(P<0.05)。俯卧转体180°练习时,只有腹斜肌和竖脊肌积分肌电值在地板与瑞士球、地板与平衡板上呈现非常显著性差异(P<0.01),BOSU球与瑞士球相比呈现显著性差异(P<0.05)。结论:在选择核心区力量训练手段时,仰卧起坐动作适宜在稳定支撑面上进行;俯卧撑和俯卧转体动作适宜在瑞士球上进行。因此,核心非稳定训练并不一定比稳定训练对肌肉有更强烈的刺激,取决于所选择练习动作和器材的组合,其实质是创设核心区肌肉共同协调收缩的环境,以提高人体的稳定性。objective： This study explored trunk muscles＇ sE MG of push-up,sit-up and prone side turn 180° in floor,BOSU ball,Swiss ball and balance sheet,for detecting the muscle activation degree in stable and unstable platforms,understanding the nature of core training,and providing reference to optimize methods of core training.Methods： Fifteen elite aerobics athletes were participated in this study and finished push-up,sit-up and prone side turn 180° in floor,BOSU ball,Swiss ball and balance sheet,their trunk muscles＇ sE MG were collected and analyzed by Telemyo2400DTS16. Results： When doing sit-up in floor,integral EMG of erector spinae had changed significantly（ P 0. 05）. Compared with push-up in Swiss ball,integral EMG of rectus abdominis of push-up had significant differences in BOSU ball,floor and balance sheet（ Ps 0. 05）,it also happens in abdominal oblique muscle in floor and balance sheet（ Ps 0. 01）. Compared with push-up in floor,integral EMG of pectorals major muscle of push-up changed significantly in BOSU ball and Swiss ball（ Ps 0. 05）. When doing prone side turn180°,integral EMGs of erector spinae and abdominal oblique muscle had differences in different platforms（ floor vs Swiss ball,floor vs balance ball,BOSU ball vs Swiss ball）（ Ps 0. 05）. Conclusions： When doing core strength training,sit-up should be practiced in stable platform,push-up and prone side turn should be practiced in Swiss ball. Muscle recruitment degree of core training in unstable platform is not larger than that in stable platform,which depends on movements and equitments. Core training is to improve body＇s stability by promoting trunk muslces＇ coordinated contraction.

关 键 词：非稳定练习 核心力量 核心稳定 激活程度 肌电 

分 类 号：G804.2[文化科学—运动人体科学]