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.
Certain medications can also cause Charley horse as a result of their side effects. Drugs such as statins or medicines prescribed for lowering cholesterol, blood pressure, diuretics, asthma medicines like terbutaline and salbutamol, morphine and lithium can trigger muscle spasms.
In most of the cases, Charlie horses are the late responses of straining a muscle during exercise, or otherwise. The most common type of Charley horse, found in the calf region, is often the result of kicking while swimming. Charley horses in the upper leg are mainly caused by activities like running or jumping.