Research On The Effect Of KAATSU Training On The Explosive Power Of Lower Limbs Of Male Sanda Athletes

Objective: To explore the comparison between the lower body explosive power of male Sanda athletes after 8 weeks of low-load compression resistance training and traditional high-load resistance training,and to analyze whether the two training methods have training differences and significant effects on the lower body explosive power of Sanda athletes.The expectation is: Sanda athletes apply KAATSU training to improve lower extremity explosive power and provide an objective reference.Methods: Subjects: 16 male sparring special students from Shanghai Institute of Physical Education were collected and randomly grouped according to the proportion of1:1 using EXCEL software,8 students each in the experimental group and control group.Test indicators:lower extremity circumference,body composition,hitting force of whip leg,positive kick,side kick,gluteus maximus,vastus lateralis,vastus medialis,rectus femoris,biceps femoris,semitendinosus when kicking,the degree of muscle activation of the lateral gastrocnemius and medial gastrocnemius,and the isokinetic muscle strength of the knee joint and hip joint at 180°/s and 60°/s.Results :(1)Compared with the pre-experimental intervention,the circumference of the right thigh、the left thigh and buttocks showed significant difference(P<0.05);the right thigh of the control group showed significant difference(P<0.05).(2)Body composition analysis showed significant differences in left thigh body fat percentage,right thigh body fat percentage,left thigh fat mass,and left thigh muscle mass in the experimental group(P<0.05);The changes of right thigh fat mass and right thigh muscle mass in the experimental group were significantly different(P<0.01);The left thigh body fat percentage,right thigh body fat percentage,right thigh fat mass and right thigh muscle mass in the control group were significantly different(P<0.05).There were significant differences in the percentage of body fat,fat mass and muscle mass in the experimental group(P<0.05).Overall mass and BMI were not significantly different.(3)The maximum hitting force and relative maximum hitting force of the experimental group of push kick and side kick were significantly different(P<0.05);The maximum hitting force and relative maximum hitting force of the round hourse kick of the control group showed a significant difference(P<0.01);the maximum hitting force and relative maximum hitting force of the round hourse kick in the control group were significantly poor(P<0.05).(4)The gluteus maximus,vastus lateralis,vastus medialis,rectus femoris,gastrocnemius lateralis,and gastrocnemius medialis muscle in the experimental group showed significant differences when performing the round hourse kick compared to the pre-experimental intervention(P<0.05).When kicking,the muscle activation degree of the gluteus maximus and rectus femoris in the experimental group was significantly different(P<0.01),and the vastus lateralis and vastus medialis were significantly different(P<0.05).Major muscle and rectus femoris showed significant difference(P<0.05).Muscle activation of gluteus maximus,vastus lateralis,vastus medialis,and rectus femoris in the experimental group when performing side kicks was significantly different(P<0.05).(5)Compared to the pre-experimental intervention,there was a highly significant difference in the extensor peak torque of the 180°/s knee extensor muscle in the experimental group(P<0.01);The extensor relative peak torque,extensor peak power and extensor relative peak power were significantly different(P<0.05).60°/s knee extensor peak torque,flexor peak torque,extensor relative peak torque,flexor relative peak torque,extensor peak power,flexor peak power,extensor relative peak power were significantly different(P<0.05);The peak extensor power of the control group was significantly different(P<0.05).(6)Compared with before the experimental intervention,the experimental group had significant differences in the peak torque of the 180°/s hip extensor,the relative peak torque of the extensor,the peak power of the extensor,and the relative peak power of the extensor(P<0.05).There were significant differences in the 60°/s hip extensor peak torque,flexor peak torque,extensor relative peak torque,extensor peak power,and extensor relative peak power in the experimental group(P<0.05);The extensor peak torque and extensor relative peak power in the control group were significantly different(P<0.05).Conclusions:(1)After 8 weeks of KAATSU resistance training,comparing the two indicators of lower extremity circumference and body composition,it is found that the increase in lower extremity circumference is due to the increase in muscle mass,so KAATSU training has a good effect on muscle growth.promotion.(2)Through KAATSU training,the strike force of the male Sanda players’ leg technique has been greatly improved.This also proves that the maximum striking power and explosive power of Sanda athletes’ leg technique have been improved through KAATSU training,so that the striking effect of the leg technique will be more obvious,and the completion efficiency of the action will be higher.(3)The degree of muscle activation index is carried out synchronously during the athlete’s kicking process.Through systematic compression resistance training,the activation degree of the muscles of Sanda athletes can be improved,which further verifies that KAATSU training can improve the muscle recruitment of Sanda athletes.Build muscle strength.(4)KAATSU training significantly improves and strengthens the extensors and flexors of the knee joints of Sanda athletes.The effect of KAATSU training on restricting blood flow and traditional resistance training can better exercise the relevant muscle groups.Therefore,the start-up speed and hitting power of the athlete’s legs in the offensive and defensive counterattacks are also accelerated with the increase of power.(5)With the aid of KAATSU training,the strength of the hip muscle group is significantly improved.Therefore,the kick-up speed of the athlete and the heavy blow after the kick-up will be more effective,the striking effect will be more obvious,and the movement from kick-up to kick-in will be more balanced and perfect.