Izvorni znanstveni članak

https://doi.org/10.26582/k.54.1.11

Reliability and measurement error of the proximal, medial and distal portions of the vastus lateralis muscle thickness measured with extended field of view ultrasonography

Bruno Rodrigues Arruda orcid.org/0000-0003-2891-5117 ; Institute of Physical Education and Sports, Laboratory Crossbridges, Rio de Janeiro State University, Rio de Janeiro, Brazil
André Luiz Conveniente Soares orcid.org/0000-0003-0536-4164 ; Institute of Physical Education and Sports, Laboratory Crossbridges, Rio de Janeiro State University, Rio de Janeiro, Brazil
Ramon Franco Carvalho orcid.org/0000-0003-3093-582X ; Institute of Physical Education and Sports, Laboratory Crossbridges, Rio de Janeiro State University, Rio de Janeiro, Brazil
Paulo Sergio Chagas Gomes orcid.org/0000-0002-1026-8639 ; Institute of Physical Education and Sports, Laboratory Crossbridges, Rio de Janeiro State University, Rio de Janeiro, Brazil

Sažetak

The image obtained by static ultrasonography (US), despite being a validated measure to identify muscle thickness (MT), has a visualization capacity limited by the size of the transducer. The extended field of view (EFOV) is a more recent technique of obtaining muscle images by the US, which allows observing MT over the entire length of the muscle. The purpose of the study was to determine the reliability and the intra- and inter-rater error of the MT measurement in the proximal, medial and distal portions of the vastus lateralis using the EFOV US. Twenty-five men (age = 24 ± 4 years) paid a visit to the laboratory. Two independent US technicians identified the anatomical landmarks and collected the images using EFOV US, with a 4 cm linear transducer, 10 MHz frequency and 6 cm image depth. After all collections, a third researcher codified the images, which were sent to two independent image raters. After a week, the images were shuffled, recoded and sent back to the same evaluators. The values of the typical error of the measurement, coefficient of variation and intraclass correlation coefficient intra and inter-rater ranged between 0.01 and 0.03 cm, 0.47 and 2.32%, 0.990 and 0.998, respectively, for the two evaluators. The Bland-Altman analysis indicated high agreement and homoscedastic error of all comparisons. The high reliability and low errors observed, less than the increments typically found in training studies, reveal the great potential for EFOV US to determine MT in different portions of the vastus lateralis muscle.

Ključne riječi

Anatomy, Data accuracy; Hypertrophy; Lower extremity; Muscle tissue; Quadriceps muscle

Hrčak ID:

278050

URI

https://hrcak.srce.hr/278050

Datum izdavanja:

30.6.2022.

Posjeta: 649 *