Or any organized sport, really. But fitness expert Mark Sisson says that ultimate Frisbee will provide you with one of the best total body workouts. “It uses nearly all the muscles in your body, but maybe more importantly, the team-based nature of the game strongly enforces a sense of community among the players. It’s an activity that relies on partnership while strengthening your ability to think quickly and move swiftly,” he said. Find teams and games near you on USAUltimate.org.