Document Detail

Reliability of the rectus femoris muscle cross-sectional area measurements by ultrasonography.
MedLine Citation:
PMID:  22487157     Owner:  NLM     Status:  In-Data-Review    
The skeletal muscle system can adapt to an external stimulus from either physiological or pathological conditions. This plasticity is measured by imaging techniques such as magnetic resonance imaging or ultrasound. The anatomical cross-sectional area of a muscle is one of the muscle architecture parameters that relates to the maximum muscle strength. The aim of this study was to determine the reliability of anatomical cross-sectional area rectus femoris measurements, obtained by ultrasound, with two different protocols. Acquisition of four anatomical cross-sectional area images of the right rectus femoris in two distinct regions (15 cm above the patella and 50% of the thigh length) was performed in 2 days, from a group of 15 young healthy subjects. The cross-sectional area of each image was measured five times. The reliability of the anatomical cross-sectional area measures was determined by the coefficient of variation (CV), intraclass correlation coefficient (ICC) and typical error of measurement (TEM). In each protocol, there were no significant differences between the means of anatomical cross-sectional area in measurements, images and days (P>0·05). The CVs were 8·53% and 8·9%, the ICCs 0·88 and 0·87 and the TEMs 65·59 and 94·25 between the 2 days in the regions of 15 cm and 50% of the thigh length, respectively. The average values of the cross-sectional area at 50% of the thigh length were significantly higher than those for at 15 cm above the patella (P<0·001). The measurement of rectus femoris anatomical cross-sectional area by ultrasound proved reliable.
Kelly M M E Lima; Thiago T da Matta; Liliam F de Oliveira
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Publication Detail:
Type:  Journal Article     Date:  2012-01-24
Journal Detail:
Title:  Clinical physiology and functional imaging     Volume:  32     ISSN:  1475-097X     ISO Abbreviation:  Clin Physiol Funct Imaging     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-04-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137604     Medline TA:  Clin Physiol Funct Imaging     Country:  England    
Other Details:
Languages:  eng     Pagination:  221-6     Citation Subset:  IM    
Copyright Information:
© 2012 The Authors. Clinical Physiology and Functional Imaging © 2012 Scandinavian Society of Clinical Physiology and Nuclear Medicine.
School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, RJ Gama Filho University, Laboratory Crossbridges, Graduate Program in Physical Education, Rio de Janeiro, RJ, Brazil.
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