Dynamic stretching engages muscles through movement, making them more elastic and less likely to become injured. In contrast to static stretching, the body becomes trained to contract muscles in the ranges of motion which have been reached through training. Holding stretches for longer than 15s lengthens muscles but also switches them off which is in almost all circumstances counterproductive to exercise endeavours. A dynamic stretch sequence is ideal for warming up and priming the body for training as well as mobilising during training and recovering from training.