A speckle tracking application of ultrasound to evaluate activity of multilayered cervical muscles
2014 (English)In: Journal of Rehabilitation Medicine, ISSN 1650-1977, Vol. 46, no 7, 662-667 p.Article in journal (Refereed) Published
Objective: To evaluate the capacity of the ultrasound-based method of speckle tracking analysis to detect changes in multilayered dorsal neck muscle activity induced by performing a lifting task.
Subjects: Twenty-one healthy individuals.
Design: Participants performed a loaded lifting task in 3 different postural orientations of the neck (neutral, flexed and forward head posture). Ultrasound images were recorded and speckle tracking analysis was used to quantify muscle deformation and deformation rate over 3 equal time-periods during the lifting sequence (rest, mid-lift and end-lift).
Results: Significant main effects of postural orientation for the deformation measure (p < 0.05) and time for the deformation rate measure (p < 0.05) were observed in all dorsal muscles examined. Significant time by postural interactions for the deformation measure were observed in the trapezius, semispinalis cervicis and multifidus (p < 0.05) and in the semispinalis cervicis (p < 0.05) for the deformation rate measure.
Conclusion: Speckle tracking analysis ultrasound measurements can detect differences in multilayered muscle activity of the dorsal neck induced by postural variations during a lifting task. Findings for the deformation and the deformation rate measures suggest that they quantify a different, albeit related, mechanical event during muscle contraction in a functional task such as lifting.
Place, publisher, year, edition, pages
Stiftelsen Rehabiliteringsinformation , 2014. Vol. 46, no 7, 662-667 p.
ultrasound; muscle deformation; cervical muscles; speckle tracking; neck posture
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-108561DOI: 10.2340/16501977-1822ISI: 000339147600009OAI: oai:DiVA.org:liu-108561DiVA: diva2:730931