Effect Of Open/Locked-out Exercise On The Inhibitory Capacity Of Obese College Students

Objective: Obesity and overweight among students have become common health problems worldwide.China has the largest obese population in the world,and the proportion of adolescent obesity is continuously increasing.Obesity can cause a series of harm to people,can cause hypertension,cardiovascular diseases and other chronic infectious diseases,as well as cause inflammation and other diseases to bring harm to the human body.Studies have shown that obesity not only leads to a decline in physical health,but also damages individuals’ cognitive ability and affects the quality of life and study.Exercise intervention can not only effectively control body weight,but also is a green and safe means to promote inhibitory ability.Although there is a large number of literature on exercise to promote the inhibitory ability of obese people,the effects of medium-and long-term and different types of exercise interventions have not been reported,and studies based on various technical means are widely expected.Therefore,this study through the use of different movement(open movement,closed movement)for medium and long-term intervention,using event related potential(ERP)and near infrared(fNIRS)technology,comparative analysis of normal weight and obesity college students inhibit differences,and explore the influence of different exercise intervention on obese college students inhibit ability.Research methods: using the classic Go / Nogo response inhibition task and Flanker conflict inhibition task,using ERP technology and fNIRS technology,through two research analysis of different people(normal weight and obese college students)inhibition ability differences,and the use of different types of exercise intervention on the ability of obese college students.Behavioral indicators mainly include accuracy and response;electrophysiological indicators mainly include mean amplitude and latency of N2 and P3,and oxyhemoglobin of 20 channels in the brain region.Statistical methods mainly have independent sample T-test and repeated measures ANOVA.Results: In Experiment 1: In Go / Nogo task,there was no significant difference between the ACC of obese and normal weight students,but the response of obese college students was significantly greater than that of normal weight students;the Nogo accuracy of normal weight students was significantly greater than that of obese students.Flanker Under the task,there was no significant difference in the correct rate of the two groups in the consistent stimulation task,but the response of obese college students was significantly greater than that of normal weight college students;in the inconsistent stimulation task,the correct rate of normal body was greater than that of the obese group,and the response was faster than that of the obese group.Under the Go and Nogo tasks,the N2 and P3 waves were less than normal weight college students and longer than normal weight college students.Flanker In the task(congruent stimulation,incongruent stimulation),the oxyhemoglobin content in the normal dorsolateral prefrontal brain region(DLPFC)was significantly higher than that of obese college students.Experiment 2: In the Go / Nogo task,the accuracy and response of both subjects were significantly better than that of the previous test,and there was no significant difference between the groups;the accuracy of both subjects was significantly higher than the previous test,and the accuracy of the open exercise group after intervention was significantly greater than that of the closed exercise group.Flanker Under the task,the accuracy of the two groups was higher than the pretest,and the open exercise group was significantly greater than the closed exercise group;the response of the two groups was less than the pretest,and the open exercise group was significantly less than the closed exercise group.In the Go / Nogo task,the N2 and P3 amplitude of the Go exercise group after intervention was significantly greater than the closed movement group;the latency of N2 in both groups shortened and there was no significant difference between groups;on the frontal(Fz)electrode,the P3 latency induced by open exercise was significantly less than the closed movement.After the intervention,the N2 and P3 amplitude induced in the open exercise group were significantly greater than that in the closed group;on the top area(Pz)electrode,the P3 incubation period induced by open exercise was significantly less than that of the locked movement.On the Flanker task(concorent stimulation,inconcorent stimulation),the open exercise group had significantly higher dorsolateral prefrontal(DLPFC)and prefrontal cortex(FPA)than the closed exercise group.Conclusion:(1)there is a significant difference between the inhibitory ability of obese college students and normal weight college students.In the face of complex tasks,they need longer responses,and the correct rate is lower than that of normal weight college students.(2)After the exercise intervention,the response and accuracy of the open exercise group and the closed exercise group were significantly improved,and both ways can effectively improve the inhibitory ability of obese college students.(3)Open exercise can more effectively increase the recruitment of cognitive resources of obese college students,and promote the activation level of the dorsolateral prefrontal lobe of the brain.The effect of open exercise intervention is better than that of closed exercise exercise.