YOUR LOWER BACK ARCHES
As you deepen into your squat, your spine looks more like half of a U than an I – well beyond a natural curve in your back. The stress on your spine in this position (especially if you add weight) may increase your risk of disc injuries.
Ugh, tight hips strike again.
But this time it’s combined with tense lats – the muscles around the sides of your back. The two issues combined produce anterior pelvic tilt, in which your hips rotate forward, jutting out your belly and curving your spine.
At least twice a week, strengthen your core with planks and make time to foam-roll your lats.
Lying on your side with a roller under your armpit, roll your body up and down. Yes, it will hurt, but in a good way.