A Biomechanical Study On Back Straight Punch Of Sanda Athlete By Different Stimuli

Research Objective:8Shanghai Sports College Sanda team Athletes air strike engineeredhuman, signal engineering who hit maximum power hitting engineered human the back straightpunches to recover the whole process of biomechanical research and analysis, the use of modernSports Biomechanics means and methods, mainly discusses the back straight air strike, the signalhitting, power hitting maximum surface engineering human muscle activity patterns, thecontribution of muscle size, muscle coordination, major joints and angular velocities, explain thestriking effect of the signal did not play Sanda sandbag hitting effect, as Sanda the back straightprovide a theoretical basis in scientific training for coaches and athletes to better understand Sandathe back straight reasonable guidance and instructions.Research Methods: In this paper, Sanda the back straight, for example, from how to combat theeffect of increasing physical point of view, the use of NORAXON companies producing wirelesstelemetry EMG, Chinese kung fu engineered human test systems, viewpoints and methodsthrough the use of bio-mechanics, trying to make the fight against Sanda back straight complexlimb movement technology builds on the basic laws of biomechanics, so that coaches and athletesto establish Sanda technical teaching and training methods based on these laws.Conclusions:1A maximum striking power project in the right hand shift, hand speed, shoulders hip rotationangle data is greater than the signal hitting, and the acceleration in the right hand, left elbow strikerate less than the signal engineering people.2signal of the air strike Actions Smaller engineered human engineered human hit signal when theoperation signal when the signal is greater than the air strike hit engineered human, but withsignificant differences.3punches hit areas, the maximum signal strength and striking works of people who hit theengineering integration EMG little difference, indicating no difference in the maximum powerengineering who struck raise the number of muscle fibers and muscle excitability strength. Overall,upper limb muscle strength than the maximum hit points EMG, and lower limb muscles (externaloblique, vastus lateralis, biceps femoris, gastrocnemius) points less than the maximum powerhitting EMG engineering people; recovery link signal hitting upper limb muscles (brachioradialismuscle, biceps, triceps, deltoids, latissimus dorsi, external oblique) is less than the maximum power of integrated EMG hit, while the outer leg muscles (shares muscles, biceps femoris,gastrocnemius) points higher than the maximum power hitting EMG.4punches hit the link arm muscles muscle signal contribution rate is greater than the maximumstriking power engineering who works hitting people; Other contributions were less than themaximum muscle strength muscle contribution rate. Signal hitting engineered human arm musclefiber activation and excitement is high, more use of arm strength. Engineering and the biggest hithitting power project in the contribution rate of the external oblique muscle had significantdifferences; Overall, the recovery of part signal hitting upper limb muscles (brachioradialismuscle, biceps, Gongsan head muscle, latissimus dorsi) contribution rate is less than themaximum power hitting, and lower limb muscle (vastus lateralis, biceps femoris, gastrocnemius)contribution rate is greater than the maximum power hitting, striking works of man and themaximum signal strength hitting Engineering who have significant differences in the contributionrate of the biceps femoris muscle.5Maximum power hitting engineered human sternal sternum, liver, left lung, right lungacceleration is greater than the signal hitting engineering people, sternum, liver, lung significantdifference, indicating that the maximum effect of the power of people hitting Engineering hittingsignificantly higher than the signal. However, the first X-axis, Y-axis accelerometer, Z-axissignal is less than the acceleration of the striking person works; from time zero to the maximumdesired signal than the maximum acceleration of the striking power of engineered human shorteracceleration from zero to the desired maximum for a long time.