We have seen athletes perform some form of warm up and cool down during training and running. Warm ups helps to increase blood flow to the muscles which then reduces muscle stiffness http://www.deutschlandtrikotswm.de/ilkay-gun***an-trikot-t-shirt-24.html , risk injuries and improved performance. It also helps in the physiological and psychological preparation.
Experts believes it is necessary to sweat a little during warm up. Warming up before exercise contributes to a number of health benefits which in turn facilitate the work out sessions. Although primarily a warm up increases the heart rate through which the body gets geared up for physical exertion, it also enhances the reflexes by speeding up nerve impulses.