The Effects Of 4 Weeks Of Sport-specific Repeated Sprint Training On Upper-body Strength Quality,Anaerobic Capacity And Punching Ability Of Elite Male Boxers

Olympic boxing requires a high level of technical and tactical ability as well as physical fitness,and its special physiological demands make it one of the most complex sports.Boxing consists of high-intensity action and rest.Athletes need to complete a series of high-intensity actions such as rapid punching,moving and changing direction,dodging and taking blows,while recovering between high-intensity actions to maintain the intensity of the action.Based on such physiological characteristics,high-intensity interval training is an important means to promote the physiological adaptation of boxers.In recent years,low-volume and high-intensity sprint-type high-intensity interval training has received more and more attention from coaches and researchers as a more efficient training method,and repetitive sprint training is one of them.Repetitive sprint training is characterized by a short sprint(≤10s)with a short rest period(≤60s).Compared with traditional high-intensity interval training,sprint-type high-intensity interval training is a promising training method that achieves sufficient physiological adaptation and effectively improves strength,speed,repetitive sprinting ability and endurance in only a few weeks.On the other hand,the time structure of repetitive sprint training seems to be more relevant to the sport-specific needs of boxing and may provide better training benefits for boxers.Objective: To investigate the effects of repetitive sprint training on boxers’ strength,anaerobic capacity and punching speed and continuous punching ability.Methods: The study was conducted using the literature method,experimental method,and mathematical statistics.16 outstanding male boxers from the Chinese Boxing Academy were divided into an experimental group(n=8)and a control group(n=8),with the experimental group adding a 4-week special repetitive sprint training(3s×14 groups×3 rounds,10 s intergroup rest,1min interround rest)intervention to their regular training,and the control group performing regular sandbag technique Training.The upper limb strength quality,upper limb anaerobic capacity,punching speed and continuous punching capacity were compared and analyzed before and after the intervention.Results: After the intervention,the peak power and average power of upper limb Wingate in the experimental group were significantly higher than those in the control group,the average propulsion power and total number of 30 s punches thrown in the experimental group had a tendency to be higher than those in the control group,and the maximum punch speed and average punch speed in the experimental group were not significantly different from those in the control group.Conclusion: The addition of boxing-specific repetitive sprint training 3 times a week for4 weeks on the basis of regular training can improve the anaerobic capacity of the upper limbs of good male boxers and may have a positive effect on their upper limb muscle explosive power and punching endurance.