Discussion on important biology mechanics factor of snatch technology

Introduction

Obtaining from the technical biology mechanics factor structure analysis, analyzing the snatch the technology of the Chinese outstanding man weightlifter to carry on the three dimensional dynamics and the two-dimensional kinematics analysis, according to the power performance and the path quota description, this research pointed out the snatch technology important biology mechanics factor, put forward the technical key link the primary control factor and the enhancement sends the strength effect and meets the barbell success ratio the instruction opinion.

Methods

The object is the Chinese man weight lifting team 16 athletes. Uses the camera photography, the photographic frequency 50/seconds, the movement video recording analyzes the system analysis with the EIMG movie. With two SAFMS-T athletes six Unger strength tests the platform to make the synchronized power test.

Results

The research obtains 5 factors of snatch technology important biology mechanics, through the technical biology mechanics factor structure analysis can thoroughly know the snatch technology’s essence, then analyzes and the diagnosis technology; In front of the bar barbell falls main and sends the strength effect factor and meets the barbell adjustment factor related, latter falls mainly meets the barbell adjustment defeat; The bar barbell maximum speed, the inertia depth of camber and sends the strength biggest strength is the monitoring sends the strength effect the major targets or quotas, meets the barbell Fy strength change, jumps a step of distance, directs the knee Fy strength change is the monitoring meets the barbell the major targets or quotas; Jumps step is affects the movement success or failure the key aspect, directs the knee Fy strength, sends when the strength bar barbell front after the movement and sends the strength back to extend the bar barbell is affects to the movement jumps the step of distance primary factor.

Discussion/Conclusions

Each host factor explanation and its significance in the biological mechanics technology diagnosis: First host factor is the strength effect factor, including the strength biggest bar barbell, the bar barbell used rising distance, the biggest strength, direct the knee time and direct the knee to return bends angle. From the strength effect factor analysis, we can analyze the snatch technical characteristic and the movement defeat reason; The second host factor is the bar barbell adjustment factor, including back strength after meeting barbell, jumps a step of distance, strength after directing the knee, front strength after meeting the bar barbell; The third host factor is the movement trend factor, including the strength angle, the strength bar barbell to be biggest Vx and under squats pulls the wrist biggest Vx; The fourth host factor is under the bar barbell to pound the strength factor, including the barbell maximum value, the bar barbell peak highly, the barbell to recede the maximum speed and the barbell to recede the distance; The fifth host factor is strength posture factor, including the strength to start the barbell fast, the strength to start the barbell to be high, the strength to start the hip angle three targets. Sends the barbell which the strength starts fast and the barbell high with the bar barbell biggest barbell fast and the barbell high between relativity is not high or is not remarkable, the bar barbell acceleration premature and will send the strength late all to destroy the movement overall rhythm.

Reference

[1]. Guo Tingdong. Sports Weightlifting (1990). Republic Physical Education Publishing Company.
[2]. Zhang Guimin. Monitoring and analyzing the technology of the Chinese outstanding man weightlifter (2003). China Sport Science and Technology.