With origins in Fort Lauderdale, Florida, Orangetheory Fitness now has its first St. Louis location in Rock Hill. At just 2,500 square feet, the studio may seem smaller than its supersized competitors. But while all the usual equipment is offered (rower, bike, treadmill, weights), Orangetheory has a philosophy all its own, with a regimen based on interval training and heart-rate monitoring. Everyone wears a monitor while working out, tracking their heart rate by looking at the two large screens on the wall. This is not a workout for lone wolves: Members exercise together in hour-long classes, although they work toward individual goals. An instructor conducting the class explains each exercise and its modifications for injuries and fitness level, providing ample motivation. Memberships range from four classes per month to unlimited access, depending on what you're willing to pay. Is Rock Hill inconvenient? Not to worry. It won't be St. Louis' only Orangetheory option for long — a second gym is already slated to open in Chesterfield.
9434 Manchester Road, Rock Hill, 63119. 314-736-1170, www.orangetheoryfitness.com.