The Effect Of Hip Abduction Muscle Strength Training On The Stability And Balance Of The Lower Limbs Of College Students With Dynamic Knee Valgus

Purpose: Dynamic knee valgus is an abnormal motivation mode of lower limb.There are many people have this wrong mode of motion,especially college students.The imbalance between the biological force line and joints,muscles and soft tissues of the lower limbs can lead to the dynamic knee valgus.While the stability and balance of the lower limbs are reduced,the possibility of damaging of the major joints getting larger.This paper using exercise of hip abduction muscles for 8 weeks to compare the effect of 29 college students.Methods: 29 college students in Chengdu Sport Institute were screened out by dynamic knee valgus test.They all doing hip abduction muscle strength training for 8weeks(three times per week).Using Y-Balance-Test for 10 indexes and 3 direction indexes to compare.The sum of the 3 direction test results is SUM=((A±PM±PL)/(3×LL)×100.In the balance test,there were 10 indexes: the maximum pole in four directions of the posture stability limit,and the control of the two directions in the front and back,and the differences of the left and right direction.The difference of the index data of Y-test and balance test before and after the 8-week training was analyzed.Results:(1)Y-Test: There was no significant difference between the two groups before and after exercise(P>0.05)except for the right A/ Limb%(P<0.05).(2)Balance test: There was no significant difference between the two groups before and after exercise,and there was no significant difference before and after exercise(P>0.05).There were significant differences between the two groups of left and right indicators(P<0.05).There was no significant difference(P>0.05)before and after the exercise of the maximum direction of the front and back,and there was significant difference between the left and right directions(P<0.05).There was no significant difference(P>0.05)between the front and back direction of gravity,but there are significant differences between left and right directions(P<0.05).Conclusion: Muscle training in 8 weeks of hip abduction can improve the stability and balance of the lower limb of college students with dynamic knee valgus.