Time course efficiency of MICE and HIIE on inhibitory control and HRV in adolescents with obesity and different cardiorespiratory fitness

Background Adolescent obesity is associated with impaired inhibitory control. Acute exercise can improve executive function. However, due to the influence of intensity, cognitive test timing, and cardiorespiratory fitness (CF) level, most effective program remains controversial. Methods The current study investigated time-course effects moderate-intensity continuous (MICE) high-intensity interval (HIIE) on control (Stroop) task-related heart rate variability (HRV) in adolescents different CF. A mixed experimental design 2 CF levels (high CF, HCF; low LCF) × 3 methods (MICE, HIIE, CON) timing (pre, post-0, post-20) was adopted. Heart Stroop task tests were conducted before (pre), immediately after (post-0), 20 min (post-20). Results Individuals HCF exhibited a positive decrease response time MICE compared pretest times (RT). Conversely, individuals LCF showed slight increase (RT) only HIIE. All had ACC HIIE exercise. In addition, group, time-domain index (the square root mean squared differences successive NN intervals, RMSSD) HRV significantly decreased, frequency-domain absolute power Low-Frequency band/the High-Frequency band ratio, LF/HF) increased effect RMSSD LF/HF greater than that MICE. Conclusion found acute obese influenced by interaction fitness. high performed better high-cardiorespiratory produced similar those but more lasting, suggesting beneficial for adolescents. promoted fitness, exercise, cardiopulmonary may be suitable rather intervention. shift from balanced sympathetic dominance reflects arousal one underlying mechanisms which brings benefits