Change search
ReferencesLink to record
Permanent link

Direct link
Assessment of intramuscular activation patterns using ultrasound M-mode strain
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.ORCID iD: 0000-0003-3363-7414
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.
2013 (English)In: Journal of Electromyography & Kinesiology, ISSN 1050-6411, E-ISSN 1873-5711, Vol. 23, no 4, 879-885 p.Article in journal (Refereed) Published
Abstract [en]

The intramuscular activation pattern can be connected to the motor unit recruitment strategy of force generation and fatigue resistance. Electromyography has earlier been used in several studies to quantify the spatial inhomogeneity of the muscle activation. We applied ultrasound M-mode strain to study the activation pattern through the tissue deformation. Correlation values of the strain at different force levels were used to quantify the spatial changes in the activation. The assessment was done including the biceps brachii muscle of 8 healthy subjects performing isometric elbow flexion contractions ranging from 0% to 80% of maximum voluntary contraction. The obtained results were repeatable and demonstrated consistent changes of the correlation values during force regulation, in agreement with previously presented EMG-results. Both intra-subject and inter-subject activation patterns of strain were considered along and transverse the fiber direction. The results suggest that ultrasound M-mode strain can be used as a complementary method to study intramuscular activation patterns with high spatial resolution.

(C) 2013 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2013. Vol. 23, no 4, 879-885 p.
Keyword [en]
Intramuscular activation, Recruitment strategies, Ultrasound, Strain, Biceps brachii
National Category
Neurology Neurosciences Physiology Sport and Fitness Sciences
URN: urn:nbn:se:umu:diva-79242DOI: 10.1016/j.jelekin.2013.02.011ISI: 000321107900019OAI: diva2:645838
Available from: 2013-09-05 Created: 2013-08-13 Last updated: 2015-11-30Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Öhberg, FredrikGrönlund, Christer
By organisation
Radiation Physics
In the same journal
Journal of Electromyography & Kinesiology
NeurologyNeurosciencesPhysiologySport and Fitness Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 37 hits
ReferencesLink to record
Permanent link

Direct link