Effects Of High-intensity Interval Exercise On Executive Function In College Students

Executive function is a kind of cognitive ability,which refers to the ability of individuals to coordinate and control various cognitive movements so as to achieve a set goal in a flexible way.Executive function is composed of three sub-functions,namely suppression function,transformation function and refresh function.Executive function is the key to individual emotion and cognition,so the development of executive function is of great value.Physical exercise has received a lot of attention in recent years for its ability to improve brain health.Research has shown that immediate or prolonged physical activity leads to better development of executive function.High intensity interval exercise(HIIT)has many advantages among various types of physical activity,including time saving,significant effect,and can develop exercisers' tenacity and interest.Therefore,moderate intensity continuous training(MICT)can be replaced as a new effective exercise prescription.In this paper based on the existing research results,the first to use meta analysis discusses the HIIT and MICT quantity and improve the function of inhibiting the effect of difference,and then discusses the HIIT and MICT executive function improvement effects on college students and the differences of duration and its neural mechanisms,hope that through further research of HIIT,provide reference for the choice of the ways of mass physical exercise.In Study 1,a meta-analysis was used to investigate the effects of HIIT on human inhibitory function,and the differences between HIIT and MICT in improving inhibitory function were compared and analyzed.METHODS: A total of 11 included studies were collected based on PRISMA principle,and effect size analysis was performed by STATA 15.0 and Review Manager 5.3 software.The results showed that:(1)Compared with the quiet state,HIIT significantly promoted the inhibitory function;(2)There was no significant difference between HIIT and MICT on inhibitory function;(3)The effect of HIIT on inhibitory function was affected by multiple moderators,such as age,exercise time,exercise type and exercise intensity.As the result of the study's unary analysis showed that HIIT and MICT had no significant difference in the effect of inhibitory function,the study 2 further explored the differences between HIIT and MICT in the improvement of executive function(including inhibitory function)and the underlying neural mechanism of HIIT and MICT.48 students were randomly selected from full-time students.They were randomly divided into two groups: HIIT group and MICT group.A mixed experimental design was adopted.The independent variables were different locomotion styles(HIIT and MICT),the dependent variables were executive functions(including inhibition,transformation and updating),and three behavioral tasks were Stroop,More-odd Shifting and 2-Back.All tasks were presented using E-prime,and the evaluation index was response time.The EEG measurement tool used event-related potential(ERP),and the evaluation indicators included the amplitudes and latency corresponding to P3.The results showed that :(1)the two types of exercise had positive effects on inhibitory function and conversion function,but the difference between them was not significant.(2)Both types of exercise had a positive effect on the refresh function,and HIIT group had a significantly greater response time change than MICT group,indicating that HIIT had a more significant effect on the improvement of refresh function.Conclusion: Both high-intensity interval exercise and moderate-intensity aerobic exercise have positive improvements in executive function subfunctions,with HIIT being the most significant for refresh function.