causes of charley horse
1 Low level of liquids in the body, while exercising, might be a probable cause of Charley horse. 2  Some spasms, especially in the neck area, might be the result of taking too much stress. 3  Charley horses in the upper leg are mainly caused by activities like running or jumping.
1 Charley horses in the upper leg are mainly caused by activities like running or jumping. 2  Some of the spasms occur because of the irritation of the nerve that connects to a muscle. 3  The most common type of Charley horse, found in the calf region, is often the result of kicking while swimming.