Journal
ULTRASOUND IN MEDICINE AND BIOLOGY
Volume 42, Issue 4, Pages 1018-1025Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ultrasmedbio.2015.12.002
Keywords
Physiotherapy; Shear wave elastography; Shear modulus; Ultrasound; Electromyography
Funding
- Region Pays de la Loire (QUETE project) [2015-09035]
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The aim of this study was to assess the intra-session and inter-rater reliability of shear modulus measured in abdominal muscles during two commonly used trunk stability exercises. Thirty healthy volunteers performed a series of abdominal hollow and abdominal brace tasks. Supersonic shear imaging was used to measure the shear modulus (considered an index of muscle tension) of the four anterior trunk muscles: obliquus externus abdominis, obliquus internus abdominis, transversus abdominis and rectus abdominis. Because of measurement artifacts, internus abdominis and transversus abdominis data were not analyzed for 36.7% and 26.7% of the participants, respectively. These participants exhibited thicker superficial fat layers than the others. For the remaining participants, fair to excellent intra-session and inter-rater reliability was observed with moderate to high intraclass coefficients (0.45-0.97) and low to moderate standard error of measurement values (0.38-3.53 kPa). Reliability values were consistently greater for superficial than for deeper muscles. (E-mail: francois.hug@univ-nantes.fr) (C) 2016 World Federation for Ultrasound in Medicine & Biology.
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