The answer to the crossword for the term 'Rolls Around While Exercising' is MATS, which stands for 'MATS for Aerobic Training and Stretching'. MATS are an essential piece of equipment for any exercise routine, as they provide a comfortable and safe surface to perform exercises on. They also help to protect the floor from damage caused by heavy weights or other exercise equipment. MATS can also be used for stretching and yoga, providing a cushioning surface that helps to reduce the risk of injury.