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dc.contributor.authorPéter, A
dc.contributor.authorAndersson, E
dc.contributor.authorHegyi, A
dc.contributor.authorFinni, T
dc.contributor.authorTarassova, O
dc.contributor.authorCronin, N
dc.contributor.authorGrundström, H
dc.contributor.authorArndt, A
dc.date.accessioned2019-11-22T04:35:45Z
dc.date.available2019-11-22T04:35:45Z
dc.date.issued2019
dc.identifier.issn1664-042X
dc.identifier.doi10.3389/fphys.2019.01283
dc.identifier.urihttp://hdl.handle.net/10072/389197
dc.description.abstractAnkle plantar flexor muscles are active in the stance phase of walking to propel the body forward. Increasing walking speed requires increased plantar flexor excitation, frequently assessed using surface electromyography (EMG). Despite its popularity, validity of surface EMG applied on shank muscles is mostly unclear. Thus, we examined the agreement between surface and intramuscular EMG at a range of walking speeds. Ten participants walked overground at slow, preferred, fast, and maximum walking speeds (1.01 ± 0.13, 1.43 ± 0.19, 1.84 ± 0.23, and 2.20 ± 0.38 m s–1, respectively) while surface and fine-wire EMG activities of flexor hallucis longus (FHL), soleus (SOL), medial gastrocnemius (MG) and lateral gastrocnemius (LG), and tibialis anterior (TA) muscles were recorded. Surface and intramuscular peak-normalised EMG amplitudes were compared for each muscle and speed across the stance phase using Statistical Parametric Mapping. In FHL, we found differences around peak activity at all speeds except fast. There was no difference in MG at any speed or in LG at slow and preferred speeds. For SOL and LG, differences were seen in the push-off phase at fast and maximum walking speeds. In SOL and TA, surface EMG registered activity during phases in which intramuscular EMG indicated inactivity. Our results suggest that surface EMG is generally a suitable method to measure MG and LG EMG activity across several walking speeds. Minimising cross-talk in FHL remains challenging. Furthermore, SOL and TA muscle onset/offset defined by surface EMG should be interpreted cautiously. These findings should be considered when recording and interpreting surface EMG of shank muscles in walking.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherFrontiers Research Foundation
dc.publisher.placeSwitzerland
dc.relation.ispartofpagefrom1283: 1
dc.relation.ispartofpageto1283: 12
dc.relation.ispartofjournalFrontiers in Physiology
dc.relation.ispartofvolume10
dc.subject.fieldofresearchZoology
dc.subject.fieldofresearchMedical physiology
dc.subject.fieldofresearchcode3109
dc.subject.fieldofresearchcode3208
dc.titleComparing Surface and Fine-Wire Electromyography Activity of Lower Leg Muscles at Different Walking Speeds
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationPéter, A; Andersson, E; Hegyi, A; Finni, T; Tarassova, O; Cronin, N; Grundström, H; Arndt, A, Comparing Surface and Fine-Wire Electromyography Activity of Lower Leg Muscles at Different Walking Speeds, Frontiers in Physiology, 2019, 10, pp. 1283: 1-1283: 12
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.date.updated2019-11-14T04:34:27Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2019 Péter, Andersson, Hegyi, Finni, Tarassova, Cronin, Grundström and Arndt. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). 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.
gro.hasfulltextFull Text
gro.griffith.authorCronin, Neil


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