Weak glutes can compromise your knees’ alignment. Strengthening your glutes helps shore up your core, which benefits your entire kinetic chain, knees included, Bezner says.
How to: Simply squeeze your glutes together, says Bezner. Hold for a few seconds, release, and repeat. Also try this at-home version of a hip extension: Stand with your feet hip-width apart, hands on your hips. Slowly raise one leg behind you (keep it straight); you should feel your buttocks contract on that side. Lower your leg back down.