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The Relationship of...
The Relationship of Ultrasound Measurements of Muscle Deformation With Torque and Electromyography During Isometric Contractions of the Cervical Extensor Muscles
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- Moodie, Katherine F. (author)
- Univ Queensland, Australia
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- OLeary, Shaun P. (author)
- Univ Queensland, Australia; Royal Brisbane & Womens Hosp, Australia
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- Tucker, Kylie J. (author)
- Univ Queensland, Australia
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- McPhail, Steven M. (author)
- Metro South Hlth, Australia; Queensland Univ Technol, Australia; Queensland Univ Technol, Australia
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- Peolsson, Anneli (author)
- Linköpings universitet,Avdelningen för prevention, rehabilitering och nära vård,Medicinska fakulteten,Univ Queensland, Australia
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(creator_code:org_t)
- MOSBY-ELSEVIER, 2020
- 2020
- English.
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In: Journal of Manipulative and Physiological Therapeutics. - : MOSBY-ELSEVIER. - 0161-4754 .- 1532-6586. ; 43:4, s. 284-293
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Objectives: Speckle tracking analysis (STA) of ultrasound (US) images quantifies the longitudinal deformation of a region of muscle tissue to provide a mechanical measure of muscle activity. As the validity and reliability of this method has not yet been adequately assessed, the aim of this study was to determine the validity and reliability of STA in the dorsal neck muscles during isometric neck extension contractions. Methods: Twenty volunteers performed 3 repetitions of isometric neck extension in a dynamometer at 10%, 20%, 40%, 60%, and 80% of maximal voluntary torque while US and surface electromyography (EMG) data were recorded. Speckle tracking analysis was then used to calculate measurements of muscle deformation. The relationship among torque, muscle deformation (separate for each muscle and summed), and EMG was evaluated using linear regressions and Spearmans correlation coefficients. The reliability of EMG and muscle deformation was determined using intraclass correlation coefficients (ICCs). Results: Muscle deformation in 4 of the 5 muscles when examined separately and collectively was significantly related to torque (P < .05); however, the relationship was weak (r(2) = 0.03-0.18). In contrast, a strong linear relationship was observed between torque and EMG (P < .001, r(2) = 0.83). Poor to moderate reliability of muscle deformation measures (ICC: 0.02-0.69) was found compared with EMG, which was highly reliable (ICC: 0.67-0.90). Conclusion: These results suggest that the validity of US STA measurements for isometric contractions of the dorsal neck muscles is questionable. Further investigation into this method is required before it can be used as a tool to measure muscle activity.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Idrottsvetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Sport and Fitness Sciences (hsv//eng)
Keyword
- Reproducibility of Results
Publication and Content Type
- ref (subject category)
- art (subject category)
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