For more free online exercise videos, visit befitandstrong.com. Don’t be fooled by this ab exercise. You may not be moving while you do it, but I guarantee your muscles will be screaming for mercy.

Learn how to do lower abdominal exercises from an expert in this free fitness video on abdominal exercises. Expert: Katie Bowers Bio: Katie Bowers is a nationally certified fitness instructor and personal trainer with over 8 years experience. Being a dancer and a former gymnast, she knows how important stretching is for muscles. Filmmaker: Louis Nathan

Check out this Brazil Butt Lift Workout Video.