Effect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to stand

Hdl Handle:
http://hdl.handle.net/10149/94189
Title:
Effect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to stand
Authors:
Edwards, L. (Lindsay); Dixon, J. (John); Kent, J. R. (Jillian); Hodgson, D. (David); Whittaker, V. J. (Victoria)
Affiliation:
University of Teesside. School of Health and Social Care.
Citation:
Edwards, L. et al. (2008) 'Effect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to stand', Journal of Orthopaedic Surgery and Research, 3 (2), Art. No. 2.
Publisher:
BioMed Central
Journal:
Journal of Orthopaedic Surgery and Research
Issue Date:
Jan-2008
URI:
http://hdl.handle.net/10149/94189
DOI:
10.1186/1749-799X-3-2
Abstract:
Background. It has been proposed that high-heeled shoes may contribute to the development and progression of knee pain. However, surprisingly little research has been carried out on how shoe heel height affects muscle activity around the knee joint. The purpose of this study was to investigate the effect of differing heel height on the electromyographic (EMG) activity in vastus medialis (VM) and vastus lateralis (VL) during a sit to stand activity. This was an exploratory study to inform future research. Methods. A repeated measures design was used. Twenty five healthy females carried out a standardised sit to stand activity under 4 conditions; barefoot, and with heel wedges of 1, 3, and 5 cm in height. EMG activity was recorded from VM and VL during the activity. Data were analysed using 1 × 4 repeated measures ANOVA. Results. Average rectified EMG activity differed with heel height in both VM (F 2.2, 51.7 = 5.24, p < 0.01), and VL (F3, 72 = 5.32, p < 0.01). However the VM: VL EMG ratio was not significantly different between conditions (F3, 72 = 0.61, p = 0.609). Conclusion. We found that as heel height increased, there was an increase in EMG activity in both VM and VL, but no change in the relative EMG intensity of VM and VL as measured by the VM: VL ratio. This showed that no VM: VL imbalance was elicited. This study provides information that will inform future research on how heel height affects muscle activity around the knee joint.
Type:
Article
Language:
en
Keywords:
heel height; vastus medialis; vastus lateralis; electromyographic activity; standing; high-heeled shoes; knee pain; EMG
ISSN:
1749-799X
Rights:
Author can archive publisher's version/PDF. For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 12/03/2010]
Citation Count:
0 [Scopus, 12/03/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorEdwards, L. (Lindsay)en
dc.contributor.authorDixon, J. (John)en
dc.contributor.authorKent, J. R. (Jillian)en
dc.contributor.authorHodgson, D. (David)en
dc.contributor.authorWhittaker, V. J. (Victoria)en
dc.date.accessioned2010-03-12T14:21:42Z-
dc.date.available2010-03-12T14:21:42Z-
dc.date.issued2008-01-
dc.identifier.citationJournal of Orthopaedic Surgery and Research; 3 (2): Art. No. 2en
dc.identifier.issn1749-799X-
dc.identifier.doi10.1186/1749-799X-3-2-
dc.identifier.urihttp://hdl.handle.net/10149/94189-
dc.description.abstractBackground. It has been proposed that high-heeled shoes may contribute to the development and progression of knee pain. However, surprisingly little research has been carried out on how shoe heel height affects muscle activity around the knee joint. The purpose of this study was to investigate the effect of differing heel height on the electromyographic (EMG) activity in vastus medialis (VM) and vastus lateralis (VL) during a sit to stand activity. This was an exploratory study to inform future research. Methods. A repeated measures design was used. Twenty five healthy females carried out a standardised sit to stand activity under 4 conditions; barefoot, and with heel wedges of 1, 3, and 5 cm in height. EMG activity was recorded from VM and VL during the activity. Data were analysed using 1 × 4 repeated measures ANOVA. Results. Average rectified EMG activity differed with heel height in both VM (F 2.2, 51.7 = 5.24, p < 0.01), and VL (F3, 72 = 5.32, p < 0.01). However the VM: VL EMG ratio was not significantly different between conditions (F3, 72 = 0.61, p = 0.609). Conclusion. We found that as heel height increased, there was an increase in EMG activity in both VM and VL, but no change in the relative EMG intensity of VM and VL as measured by the VM: VL ratio. This showed that no VM: VL imbalance was elicited. This study provides information that will inform future research on how heel height affects muscle activity around the knee joint.en
dc.language.isoenen
dc.publisherBioMed Centralen
dc.rightsAuthor can archive publisher's version/PDF. For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 12/03/2010]en
dc.subjectheel heighten
dc.subjectvastus medialisen
dc.subjectvastus lateralisen
dc.subjectelectromyographic activityen
dc.subjectstandingen
dc.subjecthigh-heeled shoesen
dc.subjectknee painen
dc.subjectEMGen
dc.titleEffect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to standen
dc.typeArticleen
dc.contributor.departmentUniversity of Teesside. School of Health and Social Care.en
dc.identifier.journalJournal of Orthopaedic Surgery and Researchen
ref.citationcount0 [Scopus, 12/03/2010]en
or.citation.harvardEdwards, L. et al. (2008) 'Effect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to stand', Journal of Orthopaedic Surgery and Research, 3 (2), Art. No. 2.-
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