The small roomis carpeted and dimly lit, its perimeter lined with ballet barres. Twenty or so people in scruffy exercise clothes and stockinged feet mill around, waiting expectantly. You can feel the energy level rise when a pretty, petite blonde enters the room, smiles at her devotees and cranks up the stereo with loud and fast pop music. Shelly Knight, a former dancer and gymnast who is ...

Continue here:
Fitness Special: The Physique 57 Workout (New York Post)