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Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling

INTRODUCTION: An imbalance of vastus medialis (VM) and vastus lateralis (VL) muscle activation and patterns of dyscoordination may contribute to the sex discrepancy in the incidence of patellofemoral pain syndrome (PFPS). While some studies have examined sex-specific VM/VL coordination strategies in...

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Autores principales: Cederbaum, Lauren A., Yoon, SangHoon, Côté, Julie N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541224/
https://www.ncbi.nlm.nih.gov/pubmed/37780119
http://dx.doi.org/10.3389/fspor.2023.1248303
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author Cederbaum, Lauren A.
Yoon, SangHoon
Côté, Julie N.
author_facet Cederbaum, Lauren A.
Yoon, SangHoon
Côté, Julie N.
author_sort Cederbaum, Lauren A.
collection PubMed
description INTRODUCTION: An imbalance of vastus medialis (VM) and vastus lateralis (VL) muscle activation and patterns of dyscoordination may contribute to the sex discrepancy in the incidence of patellofemoral pain syndrome (PFPS). While some studies have examined sex-specific VM/VL coordination strategies in some tasks, no previous studies have examined sex-specific VM/VL coordination strategies during repeated sprint exercise (RSE). METHODS: In this study, asymptomatic young adults (N = 39, 19 females) completed a RSE protocol consisting of 10 × 10 s all-out cycling interspersed by 30 s of passive rest. Electromyographic (EMG) signals from the VM and VL muscles were recorded throughout exercise. RESULTS: VM:VL ratio did not change with fatigue and was not different between the sexes. From sprint 1 to 10, VM-VL onset delay increased from 9.62 to 16.95 ms and from 19.28 to 45.09 ms in males and females, respectively (p < 0.001); however, no sex difference was found (p = 0.524). Muscle activation amplitude plateaued at different sprint repetitions in males and females while mechanical work plateaued at similar repetitions. DISCUSSION: These findings suggest that sex differences in the incidence of PFPS may not be influenced by VM/VL muscle coordination as assessed by EMG.
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spelling pubmed-105412242023-10-01 Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling Cederbaum, Lauren A. Yoon, SangHoon Côté, Julie N. Front Sports Act Living Sports and Active Living INTRODUCTION: An imbalance of vastus medialis (VM) and vastus lateralis (VL) muscle activation and patterns of dyscoordination may contribute to the sex discrepancy in the incidence of patellofemoral pain syndrome (PFPS). While some studies have examined sex-specific VM/VL coordination strategies in some tasks, no previous studies have examined sex-specific VM/VL coordination strategies during repeated sprint exercise (RSE). METHODS: In this study, asymptomatic young adults (N = 39, 19 females) completed a RSE protocol consisting of 10 × 10 s all-out cycling interspersed by 30 s of passive rest. Electromyographic (EMG) signals from the VM and VL muscles were recorded throughout exercise. RESULTS: VM:VL ratio did not change with fatigue and was not different between the sexes. From sprint 1 to 10, VM-VL onset delay increased from 9.62 to 16.95 ms and from 19.28 to 45.09 ms in males and females, respectively (p < 0.001); however, no sex difference was found (p = 0.524). Muscle activation amplitude plateaued at different sprint repetitions in males and females while mechanical work plateaued at similar repetitions. DISCUSSION: These findings suggest that sex differences in the incidence of PFPS may not be influenced by VM/VL muscle coordination as assessed by EMG. Frontiers Media S.A. 2023-09-15 /pmc/articles/PMC10541224/ /pubmed/37780119 http://dx.doi.org/10.3389/fspor.2023.1248303 Text en © 2023 Cederbaum, Yoon and Côté. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) (https://creativecommons.org/licenses/by/4.0/) . The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Sports and Active Living
Cederbaum, Lauren A.
Yoon, SangHoon
Côté, Julie N.
Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling
title Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling
title_full Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling
title_fullStr Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling
title_full_unstemmed Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling
title_short Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling
title_sort males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling
topic Sports and Active Living
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541224/
https://www.ncbi.nlm.nih.gov/pubmed/37780119
http://dx.doi.org/10.3389/fspor.2023.1248303
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