November 15, 2011 by Lisa Williams The Adobe Flash Player is required for video playback.Get the latest Flash Player or Watch this video on YouTube. You might also like:Vertical Leg Crunches - upper abs exerciseAb Exercises: The PlankEyebrow TutorialPIKACHU YELLOW CUT CREASE W/ BOLD LIP | DESI PERKINS 15-Minute Desk Workout Abs Exercise – Bicycle Crunches
A range of warm-up for 10min can help your muscle.