Latorre-Román P Á, García Pinillos F, Bujalance-Moreno P, Soto-Hermoso V M
a Faculty of Education Sciences, Department of Didactics of Corporal Expression , University of Jaén , Jaén , Spain.
b Faculty of Sport Sciences, Department of Physical Education and Sport , University of Granada , Granada , Spain.
J Sports Sci. 2017 Jul;35(13):1247-1254. doi: 10.1080/02640414.2016.1218038. Epub 2016 Aug 11.
The main purpose of this study was to evaluate running kinematic characteristics and foot strike patterns (FSP) during early and late stages of actual and common high-intensity intermittent training (HIIT): 5 × 2000 m with 120-s recovery between runs. Thirteen healthy, elite, highly trained male endurance runners participated in this study. They each had a personal record in the half-marathon of 70 ± 2.24 min, and each had a minimum experience of 4 years of training and competition. Heart rate (HR) and rate of perceived exertion (RPE) were monitored during HIIT. High levels of exhaustion were reached by the athletes during HIIT (HRpeak: 174.30 bpm; RPE: 17.23). There was a significant increase of HRpeak and RPE during HIIT; nevertheless, time for each run remained unchanged. A within-protocol paired t-test (first vs. last run) revealed no significant changes (P ≥ 0.05) in kinematics variables and FSP variables during HIIT. There were no substantial changes on kinematics and FSP characteristics in endurance runners after fatigue induced by a HIIT. Only the minimum ankle alignment showed a significant change. The author suggests that these results might be due to both the high athletic level of participants and their experience in HIIT.
本研究的主要目的是评估在实际的常见高强度间歇训练（HIIT）的早期和晚期阶段的跑步运动学特征和着地方式（FSP）：5×2000米，每次跑步之间有120秒的恢复时间。13名健康、精英、训练有素的男性耐力跑运动员参与了本研究。他们每个人在半程马拉松比赛中的个人最好成绩为70±2.24分钟，并且每个人都有至少4年的训练和比赛经验。在HIIT期间监测心率（HR）和自觉用力程度（RPE）。运动员在HIIT期间达到了高水平的疲劳（HRpeak：174.30次/分钟；RPE：17.23）。HIIT期间HRpeak和RPE显著增加；然而，每次跑步的时间保持不变。一项协议内配对t检验（第一次与最后一次跑步）显示，HIIT期间运动学变量和FSP变量没有显著变化（P≥0.05）。HIIT引起疲劳后，耐力跑运动员的运动学和FSP特征没有实质性变化。只有最小踝关节对线显示出显著变化。作者认为，这些结果可能是由于参与者的高运动水平及其在HIIT方面的经验。
