Xie Han, Mao Xiaojin, Wang Zhaohong
College of Physical Education and Sports, Beijing Normal University, Beijing, China.
College of Physical Education, Shandong Normal University, Jinan, China.
Front Physiol. 2024 Sep 4;15:1451464. doi: 10.3389/fphys.2024.1451464. eCollection 2024.
This study compared the effects of High-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on blood lactate clearance. 21 adult males were equally and randomly assigned to the HIIT and MICT groups, and completed 8 weeks of training. Before the training intervention, after 4 weeks and 8 weeks of training, all subjects were tested for blood lactate levels between 0 and 55 min after the same high-intensity test. The results show that after 8 weeks, blood lactate levels were significantly lower than pre-tests in both the HIIT and MICT groups at "0-55 min" after high-intensity test ( < 0.05), and the blood lactate clearance percentage at15-min and 30-min in both groups were significantly higher than the pre-tests ( < 0.01). The blood lactate levels in the HIIT group were significantly lower than those in the MICT group at 15 min and 30 min after test ( < 0.05), and the blood lactate clearance percentage at 30 min in the HIIT group was significantly higher than those in the MICT group ( < 0.05). In conclusion, both HIIT and MICT enhance blood lactate clearance in adult males post high-intensity test, with HIIT demonstrating superior effectiveness, making it a viable alternative to MICT.
本研究比较了高强度间歇训练（HIIT）和中等强度持续训练（MICT）对血乳酸清除率的影响。21名成年男性被平均随机分配到HIIT组和MICT组，并完成了8周的训练。在训练干预前、训练4周和8周后，所有受试者在相同高强度测试后的0至55分钟内进行血乳酸水平测试。结果显示，8周后，HIIT组和MICT组在高强度测试后“0至55分钟”时的血乳酸水平均显著低于测试前（P<0.05），且两组在15分钟和30分钟时的血乳酸清除率均显著高于测试前（P<0.01）。测试后15分钟和30分钟时，HIIT组的血乳酸水平显著低于MICT组（P<0.05），且HIIT组在30分钟时的血乳酸清除率显著高于MICT组（P<0.05）。总之，HIIT和MICT均可提高成年男性在高强度测试后的血乳酸清除率，其中HIIT效果更佳，是MICT的一个可行替代方案。
