There's something new in the Power Pilates studio on 23rd Street—perhaps you've seen people in the elevator looking flush with endorphins. Believe it or not, they've been in our 10th floor studio, racing in a very unusual team competition. In the process, they're burning loads of calories, strengthening their legs, backs, core, arms and shoulders, getting a superb cardiovascular workout and sharpening their mental focus: They've been taking Indo-Row®, Power Pilates' unique take on indoor rowing...