Anh Phong Nguyen, Laurent Bosquet, Rayan Belaoued, Christine Detrembleur, Philippe Mahaudens
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引用次数: 0
摘要
目的：本研究旨在报道(1)跑步净代谢成本（NMC）与跟腱（AT）和踝关节底屈肌被动刚度之间的相关性；(2)探索被动刚度与关键跑步生物力学之间的关系。方法：选取22名男性休闲跑步者为研究对象。跑步者在仪器跑步机上以最大有氧速度的50%跑5分钟作为热身，然后以最大有氧速度的65%跑6分钟，其中记录NMC。在跑步前后使用肌测仪测量被动僵硬度。结果：NMC与AT刚度呈负线性关系。NMC和pre - un AT刚度与腿刚度呈显著负相关，与制动峰值力和步长呈显著正相关。此外，我们观察到at和两侧腓肠肌在静止状态下，在运动前和运动后测量之间的僵硬度增加。结论：静息时测得的AT刚度越大，NMC越低。
Impact of Achilles Tendon and Ankle Plantar Flexor Stiffness on the Net Metabolic Cost of Running.
Objectives: This study aimed to report (1) the correlation between net metabolic cost (NMC) of running and Achilles tendon (AT) and ankle plantar flexor passive stiffness and (2) explore the relationship between passive stiffness and key running biomechanics.
Methods: Twenty-two male recreational runners participated in this study. The runners performed a 5-minute run at 50% of their maximal aerobic speed as a warm-up on an instrumented treadmill, followed by a 6-minute run at 65% of their maximal aerobic speed wherein NMC was recorded. Passive stiffness was measured using a myotonometry device both before and after the run.
Results: There was a negative linear relationship between NMC and AT stiffness. NMC and prerun AT stiffness demonstrated a significant negative correlation between leg stiffness and a significant positive correlation with braking peak force and step length. Moreover, we observed an increase in stiffness between prerun and postrun measurements at rest for the AT and both gastrocnemius muscles.
Conclusion: Greater AT stiffness measured at rest is correlated with lower NMC.
期刊介绍：
The International Journal of Sports Physiology and Performance (IJSPP) focuses on sport physiology and performance and is dedicated to advancing the knowledge of sport and exercise physiologists, sport-performance researchers, and other sport scientists. The journal publishes authoritative peer-reviewed research in sport physiology and related disciplines, with an emphasis on work having direct practical applications in enhancing sport performance in sport physiology and related disciplines. IJSPP publishes 10 issues per year: January, February, March, April, May, July, August, September, October, and November.
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