Shepherd Center 1 article published in JoVE Medicine Evaluation of Respiratory Muscle Activation Using Respiratory Motor Control Assessment (RMCA) in Individuals with Chronic Spinal Cord Injury Sevda C. Aslan1, Manpreet K. Chopra1, William B. McKay2, Rodney J. Folz3, Alexander V. Ovechkin1 1Department of Neurological Surgery, University of Louisville, 2Spinal Cord Injury Laboratory, Shepherd Center, 3Department of Medicine: Division of Pulmonary, Critical Care and Sleep Disorders, University of Louisville The purpose of this publication is to present our original work on a multi-muscle surface electromyographic approach to quantitatively characterize respiratory muscle activation patterns in individuals with chronic spinal cord injury using vector-based analysis.