The phenomenon of leg cramps caused by playing ball happens mostly due to frequent exercise, especially in summer or hot environment exercise body, a lot of sweating in the body, so that the body is in a state of dehydration, if not timely replenishment of water, it will lead to muscles do not have enough fluid, which leads to leg cramps. Another situation is that after strenuous exercise, when a lot of sweating, in addition to a lot of water will be excreted, minerals will also be lost along with sweat, such as electrolytes, minerals in the body when the content is too low, the imbalance will cause spontaneous cramps in the leg muscles. After playing ball leading to leg cramps, you should drink more water, which is good for replenishing minerals and electrolytes, thus relieving the leg cramps.