Building a stronger bottom won't just make your body look better in denim. It can also help you prevent injuries, especially when you get older. That's why it makes sense to focus on exercising your glutes.

The glutes – the gluteus maximus, gluteus medius, and gluteus minimus — are the muscles under the skin and fat that make up your fanny and surrounding hip areas. Unfortunately, these muscles are often under-targeted by people ages 50 and older, according to doctor of physical therapy Joe Palmer (via AARP ). Explained Palmer, "When people have weakness, it's really in those, the primary hip stabilizers." (Here are some sneaky signs that you have weak glutes .)

In other words, it's time to get your rear in gear. And who better to be the cover "glute girl" than Jennifer Aniston? Now

See Full Page