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 At times, kidney dialysis has lead to the occurrence of Charley horse in the muscles. 2  Low levels of minerals, such as sodium, magnesium or potassium, in the body can be one of the reasons for Charlie horses.  Deficiency of calcium in pregnant women can also be another reason for the onset of Charley horse.