Marathon Training - The Core
Marathon Training with Katie Koski - Core: Plank on the Ball
Dr. Don Colbert and Kyle Colbert: Get Fit and Live
Video Creation Date: November 2, 2011
Easy Toning & Low Impact Cardio Workout with Fitness Blender
Video Creation Date: June 20, 2013
Having trouble fitting exercise into your schedule?
Video Creation Date: January 25, 2011