Changes in muscle coactivation during running: A comparison between two techniques, forefoot vs rearfoot

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dc.coverageDOI: 10.18176/archmeddeporte.00059
dc.creatorAraya, Daniel
dc.creatorLópez, Juan
dc.creatorVillalobos, Germán
dc.creatorGuzmán-Venegas, Rodrigo
dc.creatorValencia, Oscar
dc.date2021
dc.date.accessioned2025-11-18T19:48:10Z
dc.date.available2025-11-18T19:48:10Z
dc.description<p>Introduction: Surface electromyography has been a technique used to describe muscle activity during running. However, there is little literature that analyses the behaviour of muscle coactivation in runners, describing the effect between two techniques associated with the initial contact, such as the use of rearfoot (RF) and forefoot (FF). Material and method: The purpose of this study was to compare muscle coactivation levels developed in the lower limb during two running techniques, FF vs RF. Fourteen amateur runners were evaluated (eight men, six women; age= 23.21 ± 3.58 years, mass= 63.89 ± 8.13 kg, height= 1.68 ± 0.08m). Surface electromyography was used to measure muscle activity during both running techniques evaluated on a treadmill, considering the muscle pairs: Rectus femoris- Biceps femoris (RFe-BF), Lateral Gastrocnemius-Tibialis Anterior (LG-TA), and Medial Gastrocnemius - Tibialis Anterior (MG-TA). These were calculated in three windows considering ten running cycles (0-5%, 80-100%, and 0-100%). To compare FF vs RF t-student test for paired data was used. Results: It was observed significant differences in the MG-TA pair (FF= 18.42 ± 11.84% vs RF = 39.05 ± 13.28%, p = 0.0018 during 0-5%, and RFe-BF pair (FF = 42.38 ± 18.11% vs RF = 28.37 ± 17.2%, p = 0.0331) during 80-100% of the race. Conclusion: Our findings show that the behaviour of muscle coactivation is different between FF vs RF techniques if we analyze little windows in the running cycle. This could be associated with an increase in the joint stability between these short intervals, represented in the initial and final regions of the running cycle.</p>eng
dc.identifierhttps://investigadores.uandes.cl/en/publications/d95ac306-c719-4d78-ac58-dd8850b80427
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/55411
dc.languageeng
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourcevol.38 (2021) nr.5 p.332-336
dc.subjectLower limb
dc.subjectMuscle pairs
dc.subjectRunning cycle
dc.subjectsurface electromyography
dc.titleChanges in muscle coactivation during running: A comparison between two techniques, forefoot vs rearfooteng
dc.typeArticleeng
dc.typeArtículospa
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