TAKE YOUR WORKOUT TO THE NEXT LEVEL! Circuit is a fast-paced class in which you do one exercise for 30 seconds to 5 minutes and then move on to another exercise. It’s like a game of musical chairs: Everyone begins at a station and when the instructor yells “Time!” you move to the next station. This workout is great for men & women of all ages. (Suitable for those able to participate in high cardio activity)