WebMD discusses what to expect from indoor cycling classes.

A stationary cycling class, RPM's is a 40-minute experience that seemed beyond most Angelinos' powers of description.

Four months after she started taking indoor cycling classes Ms. Satyanarayana, now 28, was pulled aside by an instructor who suggested she teach.

Meanwhile longtime triathletes are reconsidering indoor cycling classes.

Eventually Duffy did get back to her usual running workouts and stationary cycling classes.

Now she takes indoor cycling classes weekly, and not just to escape the winter cold.

What to expect from indoor cycling classes, starting from scratch.

Most indoor cycling classes also involve intervals.

One of her cycling classes is called "The S&M ride.

Most indoor cycling classes are coached with music.