Effects Of Vibration Training With Different Loads On Blood Lactate And Creatine Kinase

Background: Vibration training is a new method of resistance training.Compared with traditional resistance training,vibration training can effectively improve muscle strength and explosive force with a small load.Therefore,more and more researchers at home and abroad pay attention to it.At present,vibration training has been recognized by the American sports medicine association,the American physical fitness association and other professional organizations,and is widely used in public fitness and professional training institutions around the world.Although vibration training has been widely used,the relevant studies are not enough and need to be further improved.Existing studies mainly focus on the difference between the effects of vibration training and traditional resistance training,and there are few studies on the changes of blood biochemical indicators after vibration training,which is not conducive to the scientific definition of the intensity of vibration training,thus affecting the scientific formulation of the vibration training plan.Objective: The purpose of this study was to investigate the difference between resistance vibration training and traditional resistance training on serum lactic acid and creatine kinase.Methods: 8 healthy male college students from Beijing Sport University were selected as subjects,and each of them conducted 4 experiments(20% and 40%weight load of traditional resistance,20% and 40% weight load of vibration resistance).Drawing lots used to determine the experiment sequence of the 4experiments,at least 72 hours interval between the two experiments.In the morning,subjects went to the laboratory,fasting blood collected from the subjects by nurse.and test the blood lactic acid and creatine kinase in the quiet state before exercise.Then they had a unified meal and had a rest for 60 min before the experiment.The traditional resistance training load is 20% or 40% of the body weight.In each experiment,the subjects complete 6 sets of barbell squat exercises for 10 times in each group,and use metronomes to control the movement rhythm(1.5s up and 1.5s down).The time to complete each set is 30 s,and the interval time between groups is60 s.During the vibration resistance training,the vibration frequency was 30 Hz and the amplitude was 2mm,and the rest were consistent with the traditional resistance training.Finger blood was collected for blood lactic acid test at 1min,3min,5min,7min and 10 min after the training,and venous blood was collected for creatine kinase test at 6h and 24 h after the training.Results:(1)6 h creatine kinase level of 20% weight load vibration squats and 40%weight load traditional squats was significantly higher than that of quiet(P < 0.05),6h creatine kinase level of 40% weight load squats was significant higher than 24 h(P< 0.05),the rest of the group in different time points of creatine kinase level there was no significant difference(P > 0.05),and at the same time different creatine kinase level there was no significant difference between groups(P > 0.05).(2)the blood lactic acid level was significantly higher than that of the 20% body weight load squats at 3min,5min and 10 min after exercise(P<0.05),and that of the 40% body weight load vibration squats at 3min and 10 min after exercise was significantly higher than that of the 20% body weight load vibration squats at 3min and 10 min after exercise(P<0.05).There was no significant difference in creatine kinase between different groups at other time(P>,0.05).The blood lactic acid level was significantly higher than the quiet level after exercise(P<0.05),and there was no significant difference in the blood lactic acid level between 1min and 10 min after exercise(P>0.05).(3)the heart rate and RPE during the vibration resistance training were not significantly different from the traditional resistance training(P>0.05).Conclusion:(1)Vibration stimulation had no significant effect on serum lactic acid and creatine kinase levels after low-intensity resistance training(20% or 40%body weight load).(2)Anaerobic energy of 40% body weight load resistance training was higher than that of 20% body weight load resistance training.