Prancercise Highlights. Prancercize Prancercise: Gallop your way to fitness Looking for a new exercise program? Well, put on your Sunday's best, grab your ankle weights, and get ready to prance yourself into shape! Prancercise: The totally '80s workout that's finally hot to trot Joanna Rohrback of Coral Springs, Fla., came up with her idea for a horse-inspired dance-walk workout in 1989.