Precor Video: Discovery Series Selectorized Rotary Torso

The Precor Rotary Torso machine strengthens your oblique and abdominal muscles in a way traditional crunches can't by using a twisting motion. This video instructs you how to set up the machine accurately and how to effectively use the machine for optimal results.

Check out more tutorials and view Precor workouts by visiting the Precor Coaching Center.