Sprinting can be a terrific way to strengthen and tone the butt. The best part about this is that it can be done outside or inside on a treadmill. Find out how to tone up the butt muscles by sprinting with help from a personal trainer in this free video.
Expert: Robert Brace
Bio: Robert Brace has been dubbed a “New York Top Fitness Guru” by the New York Daily News and a “Top Celebrity Trainer” by Bloomberg Businessweek.
Filmmaker: Josh Tomozolli
Series Description: Maintaining personal fitness is a vital part of living a healthier life and having more energy….