Most riders have heard about 'Monday morning sickness', 'tying-up syndrome' and polysaccharide storage myopathy in horses. Tying-up, also known as exertional rhabdomyolysis, is a condition that causes muscles running over the hindquarters to tighten and cramp up.
Recent studies have highlighted links to training and feeding strategies in racehorses that can also be applied to preventing tying-up in