Chinese Man High-level Shot Athletes' Main Muscle Mass Surface EMG Analysis During Final Stage Of Shot-putting

Research purpose:This paper mainly attempt to use EM technology in back-putting sliding technical movement, To measure the outstanding shot-putter of biological muscle electricity show in the whole process of throwing, Analysis on the measurement results,The EM variations of the main muscle group mainly energised in the final stage of shot-putting, provide reference for athletes with technical diagnosis during routine training and muscle strength training,in order to improve men's shot put reformance in our country.Methods:MuscleTesierME6000 produced by Finland on portable 8 guide muscle imager 10 outstanding athletes on-site complete back-putting sliding process data acquisition, analyze the last data Use Megawin muscle electric analysis software.Research content: the last stage of shot-putting shot-putter sEMG electricity map the table; Every muscle muscle of electrical activity in the start time, over time, duration; Muscle muscle of electrical activity in the root mean-square amplitude average; Muscle muscle of electrical activity in the integral value; Measured in the whole action phase of muscle contribution.Results: 1 the last strength ready to part muscle electric analysis found that right deltoid muscle, right trapezius muscle, the first move in the tibia muscle muscles send force, muscle muscle electrical activity began to order successively for: the right deltoid muscle, right trapezius muscle, right and left tibia muscle biceps - right pectoralis major, right shares rectus - right biceps - right radial muscle; Right deltoid muscle, right pectoralis major, right trapezius muscle finally end discharge, muscle muscle electrical activity sequence successively for: the right end biceps - right shares rectus - left and right biceps muscles, right radial tibial muscle - right deltoid muscle, right pectoralis major, right trapezius muscle; Right deltoid muscle, right trapezius muscle discharge lasted the longest time, muscle muscle electrical activity duration length order: right deltoid muscle, right trapezius muscle - right shin muscle - the right chest muscle, left biceps - right shares rectus - right radial muscle - right biceps. 2 the last strength ready to part right deltoid muscle, right pectoralis major, right trapezius muscle muscle signals relative most stable, muscle muscle electrical activity in the synchronization aspects: discharge right deltoid muscle, right pectoralis major, right trapezius muscle is opposite bigger, right radial muscle, right biceps, left biceps next and right shares rectus muscle, discharge right shin synchronization relatively low. 3 the last strength prepare the contribution of part muscle: right deltoid muscle, right trapezius muscle, right pectoralis major biggest, followed left biceps radial muscle, right the smallest tibial muscle is right biceps, right shares rectus. 4 the last strength accelerate part muscle electric analysis found that right deltoid muscle, right pectoralis major, right trapezius muscle, the first move in the tibia muscle muscles send force, muscle muscle electrical activity began to order successively for: the right deltoid muscle, right pectoralis major, right trapezius muscle, move right shares and tibial muscle rectus - right radial muscle - right biceps - left biceps; Right deltoid muscle, right pectoralis major, right trapezius muscle, left biceps finally end discharge, muscle muscle electrical activity sequence successively for: move over the tibia muscle - right biceps - right radial muscle - right shares rectus - right deltoid muscle, right pectoralis major, right trapezius muscle, left biceps; Right deltoid muscle, right pectoralis major, right trapezius muscle discharge lasted the longest time, muscle muscle electrical activity duration length order: right deltoid muscle, right pectoralis major, right trapezius muscle - right shares rectus - right radial muscle - left and right biceps right biceps muscles and shin. 5 the last strength accelerate part right deltoid muscle, right pectoralis major, right trapezius muscle muscle signals relative most stable, muscle muscle electrical activity in the synchronization aspects: discharge right deltoid muscle, right pectoralis major, right trapezius muscle discharge the synchronization degree is higher, right biceps, right radial muscle next and right shares rectus, left biceps, move the synchronization of tibial muscle discharge is relatively low. 6 the last strength accelerate the contribution of part muscle: right deltoid muscle, right pectoralis major, right trapezius muscle biggest, followed right biceps, right, the smallest of radial muscle is left biceps, right shares rectus, tibial muscle move. 7 in the whole back-faced sliding the last strength phase, right deltoid muscle, right pectoralis major, right trapezius muscle muscle force effects, and largest right deltoid muscle, right trapezius muscle in shrinkage speed, duration output power demand is higher.