In the commercial for Sketchers "Shape-Ups" shoes, a beautiful actress twirls around, happy that her shoes provide extra tone and workout her muscles (right as the camera zooms in on her butt). But are Shape-Ups better than the average shoe? UNLV professor John Mercer doesn't think so. He tested out Shape-Ups and other shoes in his running lab. He tells us the surprising results, and which shoes are best for exercise... and our butts.
John Mercer, associate professor, UNLV Dept. of Kinesiology