| The purpose of this study, we compared the effects of two high-intensity interval training on aerobic exercise ability of elite endurance athletes. Methods: Participants 15 well-trained road cyclists were divided into three groups. The first group trained using sprint interval training with endurance training; The second group trained using high intensity interval training with endurance training; the third group was the control group, which using traditional endurance training. Training duration was 3 weeks. The Graded exercise stress test and aerobic exercise ability test were conducted before and after training. The test indexes included VO2max, VO2max/kg , VE, and HRmax and the stroke volume (SV) was calculated by formula, the BLA and ITT40km were tested. Results: After 3 weeks, VE, HRmax, SV, VO2max, VO2max/kg, P and ITT40km in group S were significantly higher than those before training (P＜ 0.05); VE, VO2max/kg and ITT40km in group H were significantly higher than those before training (P＜0.05), and BLA was significantly lower (P＜0.05). In group S, ΔVE, ΔHRmax, ΔSV, ΔVO2max, ΔVO2max/kg, ΔBLA, ΔITT40km were significantly improved(P＜0.05), which was better than the other two groups. And only ITT40km in group H increased significantly (P＜0.05). Conclusions: Intermittent training combined with endurance training has a positive impact on the respiratory system and aerobic supply system of elite road cyclists. Moreover, SIT combined with endurance training can improve the aerobic metabolism ability and aerobic exercise ability of road cyclists than HIIT combined with endurance training or traditional endurance training is better. |
