A muscle spasm is when the muscle becomes irritated and goes into a prolonged contraction. Muscles can often go into a spasm to protect an injured area from further damage. It can also be a result of overused, tired and overstretched muscles. If you have been holding a certain position for a long period of time such as an office worker or doing a strenuous activity this can cause spasm to occur. Athletes who exercise at a high intensity in hot weather can find they get spasms. Sports Massage is a great way to reduce the likelihood of muscle spasms and prevent them occuring.