Indoor cycling has taken off as a global movement for serving up inspiration with perspiration. Take this energizing exercise out for a spin—all from the hot seat of your specialized stationary bike. Focused on endurance, strength, intervals, intensity, and recovery, spinning puts the pedal to metal when it comes to physical fitness. A lead instructor and fast-paced music guide you through routines designed to simulate terrain and situations that give off the impression of riding a bike outdoors. Ride off into the figurative sunset.