Once you’ve reached the bottom of the squat, you drive your butt straight up—not forward—and raise your shoulders at the same pace. To do this, you must maintain a back angle that keeps the weight over the middle of your foot. If your hips rise faster than your shoulders, you’ll start tipping forward, which puts heavy strain on the neck and back. Don’t think about anything but driving your hips straight up while keeping your chest up and maintaining the proper spine angle, and you’ll ascend correctly.

