A Comparative Study On The Effects Of Kaatsu Training Of Elastic Belt On Upper Limb Strength In Water And Land Environment

Research purpose:The effectiveness of compression training on muscle strength alterations has been confirmed,and KAATSU training in a water environment is equivalent to applying "double pressure" on the trainer that may produce better results.This study will try to compare the effects of low force pressure,the optimal choice of pressure pressure and analyze the training effect of each group and confirm whether the effect is similar to high intensity nonpressure training.Research method:With 48 students from the special swimming class,All were male,It is randomly divided into water low-intensity pressure group（WLIP）,water high-intensity non-pressure group（WHINP）,land low-intensity pressure group（LLIP）and land high-intensity non-pressure group（LHINP）,Each group of 12 people,The four groups completed 8 weeks of elastic belt bending,bending arms,bending birds,elastic belt chest,and traction paddle training in different environments or different intervention conditions,Each group is trained to exhaustion,All subjects were tested for four movement maximum strength,1min push-ups,upper arm relaxation muscle circumference and maximum muscle circumference,25 m splint freestyle stroke-in speed,After 8 weeks of training,the experimental posttest of each index was conducted,Pairwise comparisons were made from the SPSS test results.Research results:（1）The four training groups could significantly increase the maximum strength（P <0.05）,with very significant differences between the low intensity pressure group in water and the high intensity non-pressure group in water（P <0.01）.（2）The four training groups can significantly improve strength and endurance,with significant differences（P <0.01）;the four training groups（P <0.05）and the other three groups（P <0.01）;the four training groups can significantly improve swimming speed,especially in water（P <0.01）and the other three groups were only significant（P <0.05）.（3）In the same environment,the results of different interventions,the four indexes of the water low intensity pressure group and the water high strength non-pressure group（P> 0.05）,and the four indicators and the onshore high strength non-pressure group（P> 0.05）.（4）In different environments,comparing the results of the same intervention,there was no significant difference between the groups（P> 0.05）,the other three indicators（P <0.05）,and no groups（P> 0.05）,and the other three indicators（P <0.05）.Research conclusion:（1）After 8 weeks of training,the water environment and onshore environment combined with low intensity pressure or high intensity non-pressure training can effectively improve the maximum upper limb strength,strength and endurance,upper limb muscle circumference and stroke swimming speed of swimming students.（2）In the same environment,the effect of low-intensity pressure training is close to high-intensity non-pressure training,and there are a small number of index high-intensity unpressure group increase slightly higher than the low-intensity pressure group,which proves that high-intensity training is still the core element of changing muscle strength.（3）In different environments,under the same exercise intensity,training in water environment is more conducive to improve muscle strength than onshore environment,especially under the action of "double pressure",the effect is very significant,but the influence of water resistance and cuff pressure will make it more difficult for subjects to complete the specified movements and times.（4）The four training methods can effectively improve the swimming speed of swimming students,the low-intensity pressure training is the most obvious,and the water training is more conducive to the trainers to adapt to the water environment.