Post-activation Enhancement Effect Of Intermittent Theta Burst Stimulation Transcranial Magnetic Stimulation On The Non-dominant Side Of The Lower Extremity In College Students At A Sports Institute

Research purpose:The combination of modern electromagnetism and medical electrophysiology has given birth to transcranial magnetic stimulation(TMS).Intermittent Theta rhythm transcranial magnetic stimulation is the current mode of transcranial magnetic stimulation that produces better effects on motor cortical brain areas,and there is a lack of research on intermittent Theta rhythm transcranial magnetic stimulation.There is a lack of research on intermittent Theta rhythm transcranial magnetic stimulation,mainly focusing on patient populations,and less research on healthy general and motor populations.The purpose of this study was to investigate the post-activation enhancement effect of intermittent Theta rhythm transcranial magnetic stimulation applied to the M1 motor brain region using transcranial magnetic stimulation on the non-dominant side of the lower extremity in male college students in sports institutions,to investigate whether intermittent Theta rhythm transcranial magnetic stimulation produces a post-activation enhancement effect,and to investigate the post-activation enhancement effect of different protocols on the lower extremity compared to traditional unilateral training of the Bulgarian squat.Research methods:In this paper,we mainly use literature method,mathematical and statistical method and experimental method.The experiment was conducted by randomly dividing the recruited 20 subjects into experimental group(n=10)and control group(n=10),and the experimental group was selected to use the intermittent Theta Burst Stimulation mode of transcranial magnetic stimulation equipment Intervention: 80% RMT(resting motor threshold)stimulation intensity,50 HZ plexus stimulation frequency,number of pulses in the plexus 3,single plexus time 200 ms,number of plexus 10,stimulation time of 2s,intermittent time of 8s,number of repetitions 20 times,total number of 600 total pulses,and stimulation time of 3 minutes and 12 seconds were selected.The control group was chosen to use 90%1RM Bulgarian barbell squats for a total of 5 repetitions with an interval time of 1 min.The experimental results were statistically analyzed using JASP0.16 data analysis software.Research results:(1)There was a highly significant difference in the decrease in peak power values in the experimental group immediately after the intervention(P < 0.01),a highly significant difference in the decrease in values at the 3rd minute after the intervention(P <0.01),a highly significant difference in the results at the 9th minute after the intervention(P <0.009),and a significant difference in the results at the 12 th minute after the intervention(P <0.012).Jump height decreased in the immediate post-intervention jump height results were highly significantly different(P < 0.006).The results at the 3rd minute after the intervention were highly significantly different(P < 0.006).There was a significant difference in the results at the 9th minute after the intervention(P < 0.047).There was a significant difference in the rate of force production immediately after the intervention(P < 0.041).The rate of force production decreased at the 3rd minute after the intervention and the results were significantly different(P < 0.019).There was a highly significant difference in the results at the 9th minute after the intervention(P < 0.003).(2)There was a significant difference in peak power in the control group at the 6th minute post-intervention results(P < 0.035),jump height at the 9th minute post-intervention results(P < 0.042),and no significant difference in force production rate at each time point post-intervention results.(3)In the experimental group compared to the control group,the difference in jump height improvement was higher in the control group than in the experimental group at the 3rd minute after the intervention,with a significant difference(P < 0.034).The differential results for peak power and force generation rate at each time point were not significantly different.Conclusions:(1)intermittent Theta Burst Stimulation can produce post-activation enhancement effects in the peak power and jump height at the 9th minute after the intervention,with peak post-activation enhancement effects in the rate of force generation.(2)Intermittent Theta rhythm transcranial magnetic stimulation occurs later than traditional Bulgarian deep squat training exercise performance peaks and produces greater body fatigue.(3)intermittent Theta Burst Stimulation produced longer duration post-activation enhancement effects than traditional Bulgarian squat training.