Purpose: To compare the characteristics of nerve immune response between two-week high-intensity interval training(HIIT) and general aerobic training (AT). Method: Eight male kayakers were administered HIIT for two-week and AT for two-week. With nine training classes per week, and the training load was basically the same. The characteristics of the nerve immune response before and after conducting the two training methods were compared. Specifically, a supine short duration 5-min heart rate variability test was performed in the following morning 6:30 in their quiet state before and after HIIT and AT respectively, and antecubital venous blood was taken in fasting quiet state immediately before the test was completed and used to measure lymphocyte subsets and plasma catecholamines. Results. After 2 weeks of training, the HRV time-domain indicators SDNN, RMSSD, SDSD and frequency-domain indicators TP, HF, LF in the AT and HIIT groups showed different magnitude changes, but none of them were statistically significant, and there was no interaction effect between the AT and HIIT groups; T%, CD8+% in AT group and B%, CD4+% and CD4+/CD8+ in HIIT group showed statistically significant differences, and B%, CD4+%, CD8+% and CD4+/CD8+ had significant interaction effects between AT group and HIIT group; ADR and NE in AT group and HIIT had different amplitude changes, but there was no statistical difference; There was significant interaction between NE in AT group and HIIT group. Conclusion: Compared with general aerobic training, high-intensity interval training has a greater impact on the immune system, but both have a smaller impact on the nervous system. In the process of High-performance sport training, after high-intensity interval training, it is suggested to intervene through diet, nutrition and other means in time to avoid the phenomenon of decreased immune function of athletes. |