Jennifer Aniston’s trainer says these are the three exercises that will help you perfect your squat form and build strong glutes

When we squat , the gluteal muscles in the butt—especially the glute maximus and medius—work together to stabilize and mobilize the hips, supporting balance and the lower body.

And if the glute medius (the small muscle on the side of the hip underneath the maximus) is weak, this can cause your knees to cave in when you squat, says Jennifer Aniston ’s fitness coach Dani Coleman .

Coleman, VP of training and head trainer at Pvolve , tells Fit&Well that “the glute medius is a key—yet often overlooked—muscle for hip stability, posture and injury prevention. You may like

A Pilates instructor says these are the three exercises you should be doing regularly to build your glute strength

This trainer says you should train your lower body from the bottom up, starting with calf raise