The 4 best butt toning exercises, based on new research

from prevention.com

Frustrated by your butt? We dug up brand-new research from the University of North Carolina revealing the most effective moves for sculpting a sexy, shapely backside. In fact, the exercises in this 10-minute routine beat out the competition by activating muscles up to 30% more than traditional moves. Add in regular cardio 4 to 5 times a week and researchers say you'll start noticing a firmer, shapelier rear in as little as 2 to 4 weeks. Bonus: Since a strong backside powers just about everything you do, from hiking up stairs to rushing through errands, you'll feel more energized all day long. More