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Quantified electromyography of lower-limb muscles during level walking.
KTH, School of Technology and Health (STH), Ergonomics. (Ergonomi)
1986 (English)In: Scandinavian Journal of Rehabilitation Medicine, ISSN 0036-5505, Vol. 18, no 4, 159-63 p.Article in journal (Refereed) Published
Abstract [en]

The electromyography (EMG) of eleven different lower limb muscles of ten healthy subjects was quantified during normal level walking. The surface EMGs obtained were normalized, in percentage, to the activity obtained during an isometric maximum voluntary test contraction of each subject. The mean peak activities of the gluteus maximus, gluteus medius, rectus femoris, vastus medialis, vastus lateralis, biceps femoris and medial hamstring muscles occurred at heel-strike and were between 5 and 15% of max isometric EMG. The magnitudes of tibialis anterior and triceps surae muscular activity were higher than those of the other muscles investigated. Mean peak activity in tibialis anterior was 27%, in gastrocnemius medialis 42%, in gastrocnemius lateralis 19% and in soleus 40%. The important role of the triceps surae during walking was reflected in comparatively high muscular activity at push-off.

Place, publisher, year, edition, pages
1986. Vol. 18, no 4, 159-63 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:kth:diva-77585PubMedID: 3810082OAI: diva2:498417
NR 20140805Available from: 2012-02-12 Created: 2012-02-07 Last updated: 2012-02-12Bibliographically approved

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