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 Low levels of minerals, such as sodium, magnesium or potassium, in the body can be one of the reasons for Charlie horses. 2  Deficiency of calcium in pregnant women can also be another reason for the onset of Charley horse.  Low level of liquids in the body, while exercising, might be a probable cause of Charley horse.
A primary cause of leg pain is a muscle cramp or spasm thatâs often known as â a charley horse.â A cramp usually triggers sudden, sharp pain as the leg muscles contract. The tightening muscles often form a visible, hard lump beneath the skin. There may be some redness and swelling in the surrounding area.