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.
charley-horse - a muscular cramp (especially in the thigh or calf) following vigorous exercise. charley horse. colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech. cramp, muscle spasm, spasm - a painful and involuntary muscular contraction.