The Junge Pavilion is an ice rink in Bryn Athyn, PA that is used by a local high school and college. For a college fitness class and other activities, the ice rink surface is covered with artificial turf. The turf area is divided in half, with one side for warmups and the other for circuit training exercises called the "Core Four." The Core Four circuit consists of four stations spaced around the turf, each performed for one minute before moving to the next station with a 20 second transition exercise like planks. Examples of the stations are exercises with a physioball, lunges, mountain climbers, and medicine ball slams. The class also includes group exercises like speed ladder drills and