Gerson E. Kuhr, The Fitness Pharaoh In the Washington, D.C. area, there is a well-known personal trainer who specializes in specific exercise protocols for belly dancers. Gerson E. Kuhr is an expert who has helped shape local performers for proper dance posture and guided them in attaining the healthy, strong and feminine bodies that move so gracefully on stage. Check out our fitness DVD: Core Training for Belly Dancers!