Stephanie Valberg, DVM, PhD, Dipl. ACVIM, ACVSMR, is the Mary Anne McPhail Dressage Chair in Equine Sports Medicine and a Professor of Large Animal Clinical Sciences at Michigan State University. She is a leading researcher on the subject of tying-up and the genetic basis for equine neuromuscular disorders.
Stephanie Valberg, DVM, PhD, Dipl. ACVIM, ACVSMR
October 1, 2001
Muscle disease in performance horses commonly is referred to as tying-up, exertional rhabdomyolysis, azoturia, or Monday morning disease. Horses experiencing tying-up show a stiff gait; reluctance to move; firm, painful muscle cramps; profuse