A leg cramp is a sudden tightening in your muscles, usually occurring in your calf, according to Consumer Reports. Leg cramps can be very frustrating when they happen during a run; a bad one can effectively ruin a good workout. Fortunately, a few simple changes in your exercise habits can decrease their frequency. Although most leg cramps are not indicative of a serious condition, see your doctor for an exact diagnosis if they persist.
RICE
Mild leg pain caused by cramps can usually be treated at home with the RICE method -- rest, ice, compression and elevation. Take time off from running, elevate your leg, apply ice several times and massage cramped muscles. You can also take over-the-counter, anti-inflammatory pain relievers such as ibuprofen or acetaminophen.
Stretching
Stretching often can help soothe or prevent cramps and other muscle pains during exercise. To ease a cramp when it happens, contract the opposite muscle group; for example, point your toes toward your knees to counteract a calf cramp. When you begin your workout, do a few minutes of warming up, then stretch your leg muscles; this will help you avoid injury by ensuring you don't overstretch "cold" muscles.
Hydration
Dehydration can sometimes cause leg cramps; although this cause is often associated with night cramps, it could also be a factor if you're not drinking enough water while exercising. Be sure to drink water before your run, and stop for water breaks if you feel you need them, especially if you're outdoors on a hot day or indoors in a warm environment. After your run, drink more water or replace lost energy and electrolytes with a sports beverage.
Complications
Certain medications cause leg cramps as a side effect, according to Medline Plus. If you are taking one and suspect it may be worsening your cramps, talk to your doctor about whether your medication should be changed or modified. These medications include diuretics, nifedipine, beta-agonists, steroids, morphine, cimetidine, penicillamine, lithium and statins.
