Abstract #2716

A novel approach for 3D whole muscle strain measurements during isometric muscle contractions

Melissa Tamara Hooijmans^1,2, Crystal L. Coolbaugh¹, Hannah L. Kilpatrick¹, Mark K George¹, and Bruce M Damon^1,3

¹Vanderbilt University Institute of Imaging Science, Nashville, TN, United States, ²Department of Biomedical Engineering & Physics, Amsterdam University Medical Centers, Amsterdam, Netherlands, ³Department of Radiology and Radiological Sciences, Biomedical Engineering, and Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN, United States

In this study we explore the feasibility of using displacement fields to quantify whole muscle 3D strain patterns during submaximal voluntary contractions of the dorsiflexor muscles. Our results showed a consistent pattern, of large negative (shortening) and a large positive (lengthening) principal strains. Both the magnitude and pattern of strain agree with other studies performed during submaximal contractions which indicates the feasibility of this approach to quantify 3D strain.

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