Spinning simulates outdoor rides that targets all major muscle groups, including your quads, hamstrings, calves, glutes, and core. Like boot camp, cardio classes, or other high-intensity interval training sessions, spin burns 100s of calories while having fun in a group atmosphere. The music is highly motivating incorporating various rides from flats to sprints to hill climbs. Each ride lasts 45 minutes to one hour that includes a warmup and cool down.