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Abstract #2520

Mechanical properties and force output of quadriceps muscle following eccentric exercise

P Kennedy 1 , L MacGregor 2 , E Barnhill 1 , A Cooper 1 , L Hiscox 1 , C Brown 3 , J Braun 4 , I Sack 4 , E van Beek 1 , A Hunter 2 , CL Johnson 5 , and N Roberts 1

1 Clinical Research Imaging Centre (CRIC), University of Edinburgh, Edinburgh, United Kingdom, 2 School of Sport, University of Stirling, Stirling, United Kingdom, 3 The Mentholatum Company Ltd., Glasgow, United Kingdom, 4 Department of Radiology, Charit - Universittsmedizin Berlin, Berlin, Germany, 5 Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, United States

Exercise Induced Muscle Damage (EIMD) is associated with force reduction, inflammation and pain after exercise and is often accompanied by Delayed Onset Muscle Soreness (DOMS). In this study significant variation in muscle stiffness, measured using Magnetic Resonance Elastography (MRE), and force output are determined following an eccentric exercise protocol. Subjective pain assessment revealed significant pain increase following damage indicating the presence of DOMS. The rectus femoris muscle group is primarily affected with localised oedema present on T2 weighted imaging.

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