Neuromuscular Fatigue After Long-Duration Adventure Racing in Adolescent Athletes
| Autor: | Anthony Birat, Alexis Dupuy, Claire Morel, Yoann M Garnier, Mélanie Rance, Stéphane Nottin, Anne-Charlotte Dupont, Sébastien Ratel, Anthony J. Blazevich, Claire Grossoeuvre, Pierre Bourdier, Alexandre Dodu |
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| Přispěvatelé: | EA4278 Laboratoire de Pharm-Ecologie Cardiovasculaire (LaPEC), Avignon Université (AU) |
| Rok vydání: | 2021 |
| Předmět: |
Male
Acute effects medicine.medical_specialty Adolescent [SDV]Life Sciences [q-bio] Adolescent athletes Physical Therapy Sports Therapy and Rehabilitation Isometric exercise 030204 cardiovascular system & hematology Concentric 03 medical and health sciences 0302 clinical medicine [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system Isometric Contraction Internal medicine medicine Humans Eccentric Knee Orthopedics and Sports Medicine Muscle Skeletal Short duration Electromyography business.industry 030229 sport sciences Torque Neuromuscular fatigue Athletes Muscle Fatigue Pediatrics Perinatology and Child Health Cardiology business Knee flexor Muscle Contraction |
| Zdroj: | Pediatric Exercise Science Pediatric Exercise Science, Human Kinetics, 2021, 33 (3), pp.103-111. ⟨10.1123/pes.2020-0201⟩ |
| ISSN: | 1543-2920 0899-8493 |
| Popis: | Purpose: To characterize the acute effects of a long-duration adventure race on knee extensor (KE) fatigue and the knee functional ratio in adolescent athletes. Methods: Twenty trained male adolescents (aged 14–17 y) performed an adventure race of 68.5 km. Maximal voluntary isometric contraction (MVIC) KE and knee flexor torques were measured before and immediately after the race. Central and peripheral components of neuromuscular fatigue were quantified from the maximal voluntary activation level and the doublet peak torque (Tw100), respectively. The peak eccentric knee flexor torque to concentric KE torque ratio was also measured to determine functional ratio. Results: The race completion time was 05:38 (00:20) hours. Significant reductions in MVICKE (−14.7%, P KF (−17.0%, P P 100 remained unchanged. Peak eccentric knee flexor torque decreased 16.0% (P P Conclusion: The adventure race induced a moderate fatigue, which was mainly explained by central factors without significant peripheral fatigue. However, particular attention should be paid to the knee muscular imbalance incurred by the race, which could increase the risk of ligament injury in adolescent athletes. |
| Databáze: | OpenAIRE |
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