overuse of muscles leads to them tightining up to try and prevent use. You need 4 things Potassium, Amino acids((fills in gaps where muscle starts to tear)and they tear when pushed, how muscle is built)) and of course liquids. Gatorade and water works well and pop doesn't help too terribly much. But if you follow the previous two the liquid portion won't matter too much since your drinking decent amounts of water and a sprite