Fitness Training Basics : Best Workout for a Six-Pack
A medicine ball works ab muscles to develop a six-pack. Incorporate a medicine ball into an ab workout with tips from a certified physical fitness trainer in this free exercise video.
Expert: Mike Quebec
Bio: Mike Quebec is a certified trainer from the North American Sport Savate Association of American boxing and kickboxing.
Filmmaker: Bing Hu
Duration : 0:3:26
