The Quantitative Research Of Xingyi Releasing Force

Objective:This paper explores the external characteristic and internal mechanism of the Xingyi Bengquan skill when releasing force through modern biological technology and instruments. The paper do a quantitative analysis and evaluation to the skill and provide the corresponding theoretical basis and the reference to the scientific training of Xingyi.Methods:This paper Collected and recorded the date of Bengquan from the Kinematics, Dynamics and Table semg electricity of 4 practitioner who had many years Practice experience about Xingyi by two High-speed cameras, Muscle electricity tester and 3d force measurement machine on the basis of literature and Interview concerned expert. And do Statistics and comparative analysis to the Main joint speed, Angle,Hard muscle timing and Put power of bengquan action when releasing force.Results and analysis:1. Four people send trouble for only stages time average speed, just make the peak "s right achieved respectively 6.973 m/s,5.751 m/s,4.717 m/s and 5.093 m/s; Boxing respectively peak acceleration 74.46 m/s2,56.67 m/s2,35.25 m/s2 and richness m/s2.2. Four people send strength phase change of angular elbows are increased obviously after first, sharp attenuation.3. Four athlete knee Angle in hair appear in strength stage after the first reduce increased by big phenomenon, knee Angle than the time by reducing the small increase longer time.4. Four people right to land flybar reverse force on the X axis, Y and Z axis three direction, then down first sharply in the Z axis, the force value change to outweigh the X axis and Y axis direction of change.5. In xingyi collapse in the hair of boxing, upper limb muscle strength phase activation order:humerus radial muscle, humerus broad, deltoid muscle front muscles, latissimus muscle; Lower limb muscle activation order:the lateral head of the calf triceps, biceps, left biceps calf triceps, head of the left, pretibial muscle, the lateral femoral muscle. Tibialis anterior muscle and left leg of the biceps muscle electric continues for a long time, deltoid muscle front, biceps and the lateral femoral muscle for the shortest duration.6. Four xingyi practitioners 10 muscles in collapse in the fist hair strength stage actions followed by contribution rate of radial muscle, tibial before brachial biceps muscles, calf muscles, and latissimus triceps, lateral head, the lateral femoral muscle, deltoid muscle front, the lateral head of the calf triceps biceps, left, left biceps.Conclusion:1. Four practitioners in collapse of strength phase fist hair peak velocity to the fist time is the maximum time elbow Angle 69 percent average ratio, boxing speed and boxing acceleration earlier than elbow angular velocity and Angle acceleration peak; Four practitioners knee Angle are obviously reduced scope is different, and the right to pedal before the size of angular speed change of knee joint remaineth strength extending effectiveness has very important function.2. Right to the land--with the size of the reverse force to the acceleration of stirrup right about before.3. Xingyi collapsed, sending strength phase fist of upper limb muscle activation sequence on speak with boxing spectrum "shoulder, elbow urge hand reminders cubits order; the hair of strength," Lower limb muscles in old boxer with a prescriptive dictated to the foot "up, do that at leg"; Overall, the lower body muscle muscle electricity longer than average duration of upper limb muscles muscle electricity duration.Proposal:1 xingyi collapse in action when fist, should speed up the training of hindlegs tixipingheng pedal with speed and reduce the time step hair strength.2 in xingyi training, strengthen its pile, subtle perception collapse reactive training small muscles boxing action strength changes, especially in the radial forearm muscles and humeral calf tibialis anterior muscle training should be strengthened.