Neuromuscular adjustments to unweighted running: the increase in hamstring activity is sensitive to trait anxiety
| Autor: | Fazzari, Camille, Macchi, Robin, Ressam, Camélia, Kunimasa, Yoko, Nicol, Caroline, Martha, Cécile, Bolmont, Benoit, Sainton, Patrick, Hays, Arnaud, Vercruyssen, Fabrice, Lapole, Thomas, Bossard, Martin, Casanova, Rémy, Bringoux, Lionel, Chavet, Pascale |
|---|---|
| Přispěvatelé: | Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), French Institute of Sport (INSEP), Laboratory Sport, Expertise and Performance (EA7370) (SEP (EA7370)), Institut national du sport, de l'expertise et de la performance (INSEP), École Centrale de Marseille (ECM), Niigata University, Laboratoire lorrain de psychologie et neurosciences de la dynamique des comportements (2LPN), Université de Lorraine (UL), Impact de l'Activité Physique sur la Santé (IAPS), Université de Toulon (UTLN), 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]), Laboratoire sur la Perception, les Intéractions, les Comportements et la Simulation des usagers de la route et de la rue (COSYS-PICS-L), Université Gustave Eiffel, This study was funded by the Centre National d’Études Spatiales (CNES, https://cnes.fr/fr), Département des Sciences de la Vie et de Médecine Spatiale (grant agreement no: DAR 4800001107). |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Frontiers in Physiology Frontiers in Physiology, 2023, 14, pp.1212198. ⟨10.3389/fphys.2023.1212198⟩ |
| ISSN: | 1664-042X |
| DOI: | 10.3389/fphys.2023.1212198⟩ |
| Popis: | International audience; Introduction: Originally developed for astronauts, lower body positive pressure treadmills (LBPPTs) are increasingly being used in sports and clinical settings because they allow for unweighted running. However, the neuromuscular adjustments to unweighted running remain understudied. They would be limited for certain lower limb muscles and interindividually variable. This study investigated whether this might be related to familiarization and/or trait anxiety. Methods: Forty healthy male runners were divided into two equal groups with contrasting levels of trait anxiety (high, ANX+, n = 20 vs. low, ANX−, n = 20). They completed two 9-min runs on a LBPPT. Each included three consecutive 3-min conditions performed at 100%, 60% (unweighted running), and 100% body weight. Normal ground reaction force and electromyographic activity of 11 ipsilateral lower limb muscles were analyzed for the last 30 s of each condition in both runs. Results: Unweighted running showed muscle- and stretch-shortening cycle phase-dependent neuromuscular adjustments that were repeatable across both runs. Importantly, hamstring (BF, biceps femoris; STSM, semitendinosus/semimembranosus) muscle activity increased during the braking (BF: +44 ± 18%, p < 0.001) and push-off (BF: +49 ± 12% and STSM: +123 ± 14%, p < 0.001 for both) phases, and even more so for ANX+ than for ANX−. During the braking phase, only ANX+ showed significant increases in BF (+41 ± 15%, p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|