Department of Physiology and the Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, United States of America. k.s.campbell@uky.edu|Department of Physiology and the Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, United States of America. k.s.campbell@uky.edu|Department of Physiology and the Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, United States of America. k.s.campbell@uky.edu