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Published in: European Journal of Applied Physiology 2/2018

01-02-2018 | Original Article

Reliability of a semi-automated algorithm for the vastus lateralis muscle architecture measurement based on ultrasound images

Authors: Robert Marzilger, Kirsten Legerlotz, Chrystalla Panteli, Sebastian Bohm, Adamantios Arampatzis

Published in: European Journal of Applied Physiology | Issue 2/2018

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Abstract

Purpose

The assessment of muscle architecture with B-mode ultrasound is an established method in muscle physiology and mechanics. There are several manual, semi-automated and automated approaches available for muscle architecture analysis from ultrasound images or videos. However, most approaches have limitations such as workload, subjectivity, drift or they are applicable to short muscle fascicles only. Addressing these issues, an algorithm was developed to analyse architectural parameters of the vastus lateralis muscle (VL).

Methods

In 17 healthy young men and women, ultrasound images were taken five times on two different days during passive knee joint flexion. From the images, fascicle length (FL), pennation angle (PAN) and muscle thickness (MTH) were calculated for both test days using the algorithm. Interday differences were determined using a two-way ANOVA. Interday and intraday reliability were assessed using intraclass correlation coefficients (ICC) and root mean square (RMS) differences.

Results

FL, MTH and PAN did not differ between day one and two. The within day ICCs were above 0.94 for all tested parameters. The average interday ICCs were 0.86 for the FL, 0.96 for MTH and 0.60 for PAN. The average RMS differences between both days were 5.0%, 8.5% and 12.0% for MTH, FL and PAN, respectively.

Conclusion

The proposed algorithm provides high measurement reliability. However, the interday reliability might be influenced by small differences in probe position between days.
Literature
go back to reference Abe T, Brown JB, Brechue WF (1999) Architectural characteristics of muscle in black and white college football players. Med Sci Sport Exerc 31:1448–1452CrossRef Abe T, Brown JB, Brechue WF (1999) Architectural characteristics of muscle in black and white college football players. Med Sci Sport Exerc 31:1448–1452CrossRef
go back to reference Nikolaidou ME, Marzilger R, Bohm S, Mersmann F (2017) Operating length and velocity of human M. vastus lateralis fascicles during vertical jumping. R Soc Open Sci 4:170185CrossRefPubMedPubMedCentral Nikolaidou ME, Marzilger R, Bohm S, Mersmann F (2017) Operating length and velocity of human M. vastus lateralis fascicles during vertical jumping. R Soc Open Sci 4:170185CrossRefPubMedPubMedCentral
Metadata
Title
Reliability of a semi-automated algorithm for the vastus lateralis muscle architecture measurement based on ultrasound images
Authors
Robert Marzilger
Kirsten Legerlotz
Chrystalla Panteli
Sebastian Bohm
Adamantios Arampatzis
Publication date
01-02-2018
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Applied Physiology / Issue 2/2018
Print ISSN: 1439-6319
Electronic ISSN: 1439-6327
DOI
https://doi.org/10.1007/s00421-017-3769-8

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