Rago Vincenzo, Krustrup Peter, Mohr Magni
Faculty of Health Sciences and Sports, Universidade Europeia, Lisbon, Portugal.
Department of Sports Science and Clinical Biomechanics, SDU Sport and Health Sciences Cluster (SHSC), University of Southern Denmark, Odense, Denmark.
J Hum Kinet. 2022 Sep 8;83:277-285. doi: 10.2478/hukin-2022-0060. eCollection 2022 Aug.
We examined performance and submaximal adaptations to additional treadmill-based speed-endurance training (SET) vs. continuous moderate-intensity aerobic training (MIT) twice / week. Twenty-two male endurance athletes were tested before and after 10-week SET (6-12 × 30-s sprints separated by 3-min rest intervals) and MIT (2040 min continuous running at ~70% maximal oxygen uptake [V̇O]). The SET group attained greater acute heart rate (HR) and blood lactate responses than the MIT group (d = 0.86-0.91). The SET group improved performance in a time-to-exhaustion trial, V̇O, and lactate threshold (d = 0.50-0.73), whereas no training-induced changes were observed in the MIT group. Additionally, the SET group reduced oxygen uptake, mean HR and improved running economy (d = 0.53-0.86) during running at 10 and 12 km·h. Additional SET imposes greater physiological demands than MIT resulting in superior performance adaptations and reduced energy cost in endurance athletes.
我们对22名男性耐力运动员进行了研究，比较了每周两次额外的基于跑步机的速度耐力训练（SET）与持续中等强度有氧训练（MIT）的表现及次最大适应情况。在为期10周的SET（6 - 12次30秒冲刺，间隔3分钟休息）和MIT（以约70%最大摄氧量[V̇O₂]持续跑20 - 40分钟）前后对运动员进行了测试。SET组比MIT组有更大的急性心率（HR）和血乳酸反应（d = 0.86 - 0.91）。SET组在力竭试验、V̇O₂和乳酸阈值方面的表现有所改善（d = 0.50 - 0.73），而MIT组未观察到训练引起的变化。此外，SET组在以10和12 km·h跑步时降低了摄氧量、平均心率并提高了跑步经济性（d = 0.53 - 0.86）。额外的SET比MIT对生理的要求更高，从而使耐力运动员获得更好的表现适应并降低能量消耗。
