| Muscle strength is to complete all kinds of people driving force for action, it is human neuromuscular system activities confrontation and the ability to overcome the outside . Fast strength train is one form of expression of strength, it is muscle in the shortest time to play the greatest power capacity. as an important part of power quality, improvement of any sports performance, human movement power main from lower limbs, the anatomical structure,the structure and composition of the lower limb is the same. As the human brain is divided into two halves, their form and function are different, the two hemispheres work in different ways and use different methods to process information, produced Superiority side and non-superiority side. The main purpose of this study is on the basic subjects for physical testing and laboratory testing, Analysis of the two legs power gap. The rapid development mainly through the six-week strength training,analysis before and after training both limbs of the growth trends and the growth rate. Using data analysis conclusions to guide the strength training.This study in the uses of available liter able,interview with experts on the basis of law, mainly uses ISOMED2000 Isokinetic Force measuring System pairs of 10 boys and 10 girls3 to mobilize 60°/S,240°/S for knee isokinetic concentric contraction strength tests, received five indicators on the analysis the following conclusions:1. The single leg five levels jump the distance through the basic physical quality test in to reflect the male student superiority side and the non-superiority side leg disparity is 1.9meter difference unusual significances (p<0.01),after the training, after training reduced to 1.11 meters .Female trying superiority side with non-superiority side leg disparity 0.91 meters difference remarkable (p<0.05), after training reduced to 0.41 meters. After training the single leg five levels jump, five levels jump , 100 meters results although the difference was not significant, but athletic performance improved.2. Before the training under the 60°/ S, 240°/ S angular velocity male student's superiority side and the non-superiority side knee flexor and extensor peak torque,relative torque difference remarkable (p<0.01); After training male student's superiority side flexor muscle 60°/ S angular velocity peak torque growth value is 6.6 (N.m) increase significantly(p<0.05), non-superiority side leg flexors muscle 240°/ S angular velocity peak torque growth value is 11.1 (N.m) increase significantly(p<0.01). 3. Before the training under the 60°/ S, 240°/ S angular velocity female student's superiority side and the non-superiority side knee flexor and extensor muscle peak torque,relative torque,power different remarkable (p<0.01).After the training female student superiority side leg extensors muscle peak torque growth value is 25.3 (N.M) increase significantly(p<0.01). non-superiority side leg flexors and extensors muscle in two kind of angular speed movement torque increase significantly(p<0.01).power increase significantly(p<0.01).3. After six week fast strength trainings, the male student superiority side leg flexors and extensors muscle torque 60°/S difference remarkable (p<0.05); non-superiority side leg flexors muscle 240°/Sdifference remarkable(p<0.05). Before and after strength trainings, female student the superiority side flexors torque 60°/Sdifference remarkable(p<0.05);extensor smuscle torque240°/S differencere markable(p<0.01) non-superiority side leg flexors muscle 60°/S(p<0.01) difference remarkable, 240°/S difference remarkable, Extensor and flexor of the opposite conclusion4. Before the training ratio of knee flexion and extension reflects that male student lower limb strength balance. The female student superiority side of legs has more balance than non-superiority side of legs, relative limb knee flexor is weak strength After the training male and female students knee flexion and extension are growth of but the extensor faster growth than flexor, leading to ratio of knee flexion and extension small than before training...
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