Fatigue and Recovery after Single-Stage versus Multistage Ultramarathon Running
| Autor: | Samuel Verges, Thibault Besson, Thibault Le Roux Mallouf, Jérémy Rossi, Stéphane Doutreleau, Matthieu Marechal, Guillaume Y. Millet |
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| Přispěvatelé: | Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM ), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Hypoxie et PhysioPathologie (HP2), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes (UGA), Centre Hospitalier Universitaire [Grenoble] (CHU), SALAS, Danielle |
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Competitive Behavior Nerve stimulation Time Factors [SDV]Life Sciences [q-bio] Marathon Running Physical Therapy Sports Therapy and Rehabilitation Plantar flexion 03 medical and health sciences 0302 clinical medicine Humans Medicine Knee Orthopedics and Sports Medicine Muscle Skeletal Knee extensors Foot Single stage business.industry 030229 sport sciences Middle Aged Evoked Potentials Motor Biomechanical Phenomena [SDV] Life Sciences [q-bio] Neuromuscular fatigue Anesthesia Muscle Fatigue Physical Endurance Female business Muscle Contraction |
| Zdroj: | Medicine and Science in Sports and Exercise Medicine and Science in Sports and Exercise, 2020, 52 (8), pp.1691-1698. ⟨10.1249/MSS.0000000000002303⟩ |
| ISSN: | 1530-0315 0195-9131 |
| DOI: | 10.1249/mss.0000000000002303 |
| Popis: | International audience; Purpose: Ultramarathon running includes two main types of events: single-stage race (SSR) and multistage races (MSR). Direct comparison of neuromuscular fatigue and recovery after SSR versus MSR race of comparable distance and elevation has never been performed. The aim of this study was to assess neuromuscular fatigue and recovery after two ultramarathons of equal distance performed either (i) in a single stage or (ii) in four successive days.Methods: Thirty-one runners participated in the study: 17 ran 169 km in a single-stage race and 14 performed around 40 km·d over 4 d. The two races were performed on the same course. Neuromuscular function was tested before (PRE), after (POST), and 2 (D + 2), 5 (D + 5) and 10 (D + 10) days after the races. Neuromuscular function was evaluated on both knee extensors (KE) and plantar flexors (PF) with voluntary and evoked contractions using electrical (femoral and tibial, respectively) nerve stimulation.Results: Reduction of voluntary activation measured in the KE was greater (i.e., central fatigue) for SSR than MSR directly after the race (-23% vs -7%), P < 0.01). Reductions in evoked mechanical KE and PF responses on relaxed muscle (i.e., peripheral fatigue) of both KE and PF took longer to recover in MSR than in SSR.Conclusions: Performing prolonged running exercise over several days, each separated by rest, elicits more prolonged impairments in contractile function compared with single-stage ultramarathon, whereas single-stage mountain ultramarathon ran on the same course is associated with greater central fatigue. |
| Databáze: | OpenAIRE |
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