Today's true sports drinks are still the classic Gatorade -- packed with the electrolytes potassium, magnesium, calcium, and sodium to provide energy during intense workouts -- as well as competitors such as Cytomax, Allsport, and Accelerade.
1 In most of the cases, Charlie horses are the late responses of overstraining a muscle during exercise, or otherwise. 2  Charley horse might be the result of an electrolyte or mineral imbalance in the body.  In some of the cases, Charlie horses have been found to be a signal of the onset of a vascular disease.
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.