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.
A charley horse is another name for a muscle spasm that you may experience anytime, including while you are asleep. The causes of charley horses include lifestyle factors, certain medical conditions and physical exertion of your muscles. charley horse may occur during or just after exercise as a result of dehydration, which causes a buildup of salts in your muscles.