Stephanie Valberg, DVM, PhD

Stephanie Valberg, DVM, PhD, Director of the University of Minnesota Equine Center, is a leading researcher on the subject of tying-up and the genetic basis for equine neuromuscular disorders

Articles by Stephanie Valberg

Old School Tying Up Treatment

Why have vitamin E/selenium injections prior to whatever led to tying-up in the past been abandoned? Read More

Tying-Up in Horses

Tying-up is the most common muscle problem in horses. This syndrome is also called azoturia, set fast, paralytic myoglobinuria, and chronic exertional rhabdomyolysis (ER). HYPP (hyperkalemic periodic paralysis) in Quarter Horses is a different Read More

Breeding Horses With Genetic Disorders

I read on your site that two or three Quarter Horse stallions might be traced to the syndrome of polysaccharide storage myopathy (PSSM). I have a performance Quarter Horse filly with PSSM, and I feel it is important to know who these sires Read More

Tying Up is Split Up

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 Read More

Tying-Up Syndrome

I just bought a Thoroughbred filly which was in race training, but retired without running because of recurrent bouts of ‘tying-up.’ She had been turned out for six months before I got her, and never showed any problems while on the farm. Read More