Study On The Effect Of Health-preserving Tai Chi Posture On The Surface EMG Changes Of The Core Muscles Of The Back And Abdomen Of Healthy People

Purpose:Using surface electromyography(sEMG)and surface electromyography analysis system to research the variation of core muscles’ myoeletric during stance and Taichi zhanzhuang.Observed the variation of core muscles’ myoeletric.Analysis the effects between Taichi zhanzhuang and core muscles,provide a new method to core muscle rehabilitation.Material and method:The study was based on the research of 30 healthy volunteers,before-after study in the same patient was used in this study.All participants were from Shenyang Sport University,majored in Traditional Martial Arts,21 volunteers were including.Surface electromyography was used to record the variation of stance and Taichi zhanzhuang.The value of Root Mean Square(RMS)were processed on each muscle and each muscle’s Maximum voluntary contraction(MVC),100%RMS/MVC’s RMS was used for data analysis.Results:1.Upper erector spinae,transverse abdominis,lower rectus abdominis,external oblique had significant difference between left and right sides at stance(p<0.05),lower erector spinae,multifidus,upper rectus abdominis had no significant difference between left and right sides at stance(p>0.05).2.Upper erector spinae,transverse abdominis,lower rectus abdominis,external oblique had significant difference between left and right sides at zhanzhuang(p<0.05),lower erector spinae,multifidus,upper rectus abdominis had no significant difference between left and right sides at Taichi zhanzhuang(p>0.05).3.Erector spinae,multifidus,left transverse abdominis,right upper rectus abdominis had muscle load increased at Taichi zhanzhuang,and significant difference between stance and Taichi zhanzhuang was found(p<0.05),right transverse abdominis,left upper rectus abdominis and external oblique had muscle load increased at Taichi zhanzhuang,and no significant difference between stance and Taichi zhanzhuang was found(p>0.05).Conclusion:1.The myoeletric of Taichi zhanzhuang was obviously increased than stance,which suggestTaichi zhanzhuang excited myoelectric activity of core muscles.2.Most of core muscles’ myoeletric had significant difference between left and right sides at stance and Taichi zhanzhuang,explain that the human body makes adjustments to maintain its own stability,avoid excessive fatigue.3.Taichi zhanzhuang maintained the stability of spine,increased muscle strength of lumbar spinal cord and excited myoelectric activity of core muscles.