Search: onr:"swepub:oai:DiVA.org:kth-35598" >
Pennation angle dep...
Pennation angle dependency in skeletal muscle tissue doppler strain in dynamic contractions
-
- Lindberg, Frida (author)
- KTH,Medicinsk teknik
-
- Öhberg, Fredrik (author)
- Umeå universitet,Radiofysik
-
- Granåsen, Gabriel (author)
- Umeå universitet,Radiofysik
-
show more...
-
- Brodin, Lars-Åke (author)
- KTH,Medicinsk teknik
-
- Grönlund, Christer (author)
- Umeå universitet,Radiofysik
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2011
- 2011
- English.
-
In: Ultrasound in Medicine and Biology. - : Elsevier BV. - 0301-5629 .- 1879-291X. ; 37:7, s. 1151-1160
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- Tissue velocity imaging (TVI) is a Doppler based ultrasound technique that can be used to study regional deformation in skeletal muscle tissue. The aim of this study was to develop a biomechanical model to describe the TVI strain's dependency on the pennation angle. We demonstrate its impact as the subsequent strain measurement error using dynamic elbow contractions from the medial and the lateral part of biceps brachii at two different loadings; 5% and 25% of maximum voluntary contraction (MVC). The estimated pennation angles were on average about 4 degrees in extended position and increased to a maximal of 13 degrees in flexed elbow position. The corresponding relative angular error spread from around 7% up to around 40%. To accurately apply TVI on skeletal muscles, the error due to angle changes should be compensated for. As a suggestion, this could be done according to the presented model.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk laboratorie- och mätteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Laboratory and Measurements Technologies (hsv//eng)
Keyword
- Ultrasound
- Tissue Doppler
- Skeletal muscle
- Pennation angle
- Strain
- Biceps brachii
- Medical engineering
- Medicinsk teknik
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database