F45 is an Australian-based company that opened its first Maryland location last year in downtown Bethesda. On Saturday mornings, a live DJ shapes a playlist to match the energy of the hourlong hybrid cardio and strength-training class. F45 rotates four DJs who play everything from hip-hop to electronic dance music to old-school tunes. Screens at the front of the room display heart rates and how much time remains, plus exercise videos play on a loop while two instructors walk through the class.
4800 Auburn Ave., Bethesda; 240-600-0959; f45training.com/bethesda