It can also happen while you sit, walk or even just sleep. Sometimes the slightest movement that shortens a muscle can trigger a cramp. Some people are pre-disposed to muscle cramps and get them regularly with any physical exertion. Those at greatest risk for cramps and other ailments related to excess heat include infants and young children, people over age 65, and those who are ill, overweight, overexert during work or exercise, or take drugs or certain medications. Athletes are more likely to get cramps in the preseason when the body is not conditioned and therefore more subject to fatigue.
Cramps often develop near the end of intense or prolonged exercise, or the night after.
As you age, your muscles cannot work as hard or as quickly as they used to. The body also loses some of its sense of thirst and its ability to sense and respond to changes in temperature. Treating Muscle Cramps Treatment and prevention Cramps usually go away on their own without seeing a doctor. Gently stretch and massage the cramping muscle, holding it in stretched position until the cramp stops. To avoid future cramps, work toward better overall fitness.