Influence Of Suspension Training On Shooting Accuracy And Airframe Stability Of Special Population

Objective:Stability is one of the main factors affecting the shooting accuracy of the shooter.As a kind of core training,suspension training provides a new theoretical basis and training method for improving the shooting stability of the shooter.This study intervened the shooter by combining suspension training with shooting,and explored the influence of suspension training on the shooting accuracy and body stability of the shooter.Methods: This study adopts a randomized controlled experimental design,with 85 students from Military University as the experimental subjects.The subjects were randomly divided into the experimental group and the conventional group by class.Before and after the experiment,the shooting accuracy,stability,body composition,special physical fitness and mental state of the subjects were measured.SPSS 25.0was used to analyze and process the experimental data.The single-factor covariance analysis method was used to explore the differences between groups after the experiment of each index,using the pretest data and gender as covariates.The paired sample t test was used to explore the intragroup differences of each index between the groups.Results: After 30 times of exercise intervention,the intervention group showed significant improvements in shooting accuracy,shooting stability,body stability,body composition,and specific physical fitness(p <.05).The improvement of shooting accuracy is mainly manifested in the total shooting score(difference =-14.7)and the highest score(difference =-.95),and the improvement of shooting stability is mainly manifested in the distribution of the bullet positions(difference = 1.16).The improvement of body stability in the intervention group is mainly manifested in planks(difference =-50),the control of the lateral core muscles(left:difference =-20.2;right: difference =-18.4),core muscle endurance(the extensor endurance: difference =-70.1;the flexor endurance: difference =-73.5),core muscle dynamic endurance(the extensor dynamic endurance: difference =-12.8;the flexor dynamic endurance: difference =-11.9).In addition,the improvement of the stability of the body is also reflected in the static balance ability.The indexes with significant changes include the difference of X-axis displacement(blinking standing: difference= 1.45;closed-eye standing: difference = 3.83),the difference of Y-axis displacement(blinking standing: difference = 2.09;closed-eye standing: difference = 7.76),the trajectory of the center of gravity(blinking standing: difference = 7.98;closed-eye standing: difference = 44.0)and the envelope area of the center of gravity(blinking standing: difference = 1.53;closed-eye standing: difference =-5.49).The improvement of body composition in the intervention group is mainly manifested in BMI(difference =.43),body fat percentage(difference = 1.32),waist-to-hip ratio(difference =.01).The improvement of special physical fitness in the intervention group is mainly manifested in upper body strength(the left hand grip strength: difference =-1.52;the right hand grip strength: difference =-1.13;push-ups:difference =-9.57),speed(difference =.40),aerobic endurance(difference = 1.41)and lower body flexibility(difference =-2.35).The improvement of the highest score(intervention group: difference =-.95;control group: difference =-.93),BMI(intervention group: difference = 1.32;control group: difference = 1.00),upper limb strength(left hand grip strength: intervention group(difference =-1.52),control group(difference =-.57);right hand grip strength:intervention group(difference =-1.13),control group(difference =-.72);push-ups:intervention group(difference =-9.57),control group(difference =-8.24)),lower body flexibility(intervention group: difference =-2.35;control group: difference =-.95),aerobic endurance(intervention group: difference = 1.41;control group:difference =.85)and speed(F(1,81)= 5.80,p =.02,partial ?~2=.07)of the intervention group was more than that of the control group.In addition,the improvement in the core area control ability and static balance ability of the intervention group is more obvious than that of the control group,which is manifested in the planks(F(1,81)= 7.19,p <.01,partial ?~2=.08),the control of the right core muscles(F(1,81)= 4.41,p =.04,partial ?~2=.05),core extensor endurance(F(1,81)= 10.0,p <.01,partial ?~2 =.11)core flexor dynamic endurance(F(1,81)=6.08,p =.02,partial ?~2=.07),the Y-axis displacement difference with closed-eye(F(1,81)= 4.57,p =.04,partial ?~2=.05)and the trajectory of the center of gravity with closed-eye(F(1,81)= 8.11,p <.01,partial ?~2 =.09).Conclusions: 1)30 times of TRX suspension training can effectively improve the shooting accuracy of the shooter and improve the shooting technique level of the shooter.However,the effect of suspension training on improving shooting stability is not significant enough,which needs to be combined with the accuracy training which can quickly improve the shooter's shooting scores.2)Suspension training is effective to improve the shooter's core strength,core stability and static balance ability,which is conducive to the shooter to maintain the stability of the body in the shooting process to improve shooting score.3)TRX suspension training can effectively improve the speed,endurance,flexibility,strength of the shooter and improve the body composition of the shooter by suspending a part of the body to make the body in an unstable state for resistance exercises.