Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling
IntroductionAn 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 s...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-09-01
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| Series: | Frontiers in Sports and Active Living |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fspor.2023.1248303/full |
| _version_ | 1797682395879571456 |
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| author | Lauren A. Cederbaum SangHoon Yoon Julie N. Côté |
| author_facet | Lauren A. Cederbaum SangHoon Yoon Julie N. Côté |
| author_sort | Lauren A. Cederbaum |
| collection | DOAJ |
| description | IntroductionAn 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).MethodsIn 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.ResultsVM: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.DiscussionThese findings suggest that sex differences in the incidence of PFPS may not be influenced by VM/VL muscle coordination as assessed by EMG. |
| first_indexed | 2024-03-11T23:59:08Z |
| format | Article |
| id | doaj.art-649807931b204456a0be996761f7b40b |
| institution | Directory Open Access Journal |
| issn | 2624-9367 |
| language | English |
| last_indexed | 2024-03-11T23:59:08Z |
| publishDate | 2023-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Sports and Active Living |
| spelling | doaj.art-649807931b204456a0be996761f7b40b2023-09-18T05:49:42ZengFrontiers Media S.A.Frontiers in Sports and Active Living2624-93672023-09-01510.3389/fspor.2023.12483031248303Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cyclingLauren A. CederbaumSangHoon YoonJulie N. CôtéIntroductionAn 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).MethodsIn 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.ResultsVM: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.DiscussionThese findings suggest that sex differences in the incidence of PFPS may not be influenced by VM/VL muscle coordination as assessed by EMG.https://www.frontiersin.org/articles/10.3389/fspor.2023.1248303/fullsex differencesrepeated sprintselectromyographymuscle coordinationfatigue |
| spellingShingle | Lauren A. Cederbaum SangHoon Yoon Julie N. Côté Males and females have similar neuromuscular coordination strategies of the quadriceps during fatiguing repeated all-out cycling Frontiers in Sports and Active Living sex differences repeated sprints electromyography muscle coordination fatigue |
| 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 | sex differences repeated sprints electromyography muscle coordination fatigue |
| url | https://www.frontiersin.org/articles/10.3389/fspor.2023.1248303/full |
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