20-Minute Knee-Friendly Lower-Body Workout With Charlee Atkins

[Sponsored by Under Armour] Join Charlee Atkins for one of her most-requested formats: a knee-friendly workout! This session will include exercises to strengthen your glutes, hamstrings, and quads without placing too much strain on your knees. You’ll definitely feel the burn and fire up those muscles during this high-intensity, low-impact sweat sesh! For an added challenge, include a pair of medium dumbbells. Shop Charlee’s Under Armour outfit below: HeatGear® Armour No-Slip Waistband Printed Ankle Leggings: Mid Crossback Printed Sports Bra: HOVR™ Rise 2 Training Shoes: POPSUGAR's Favorite Workout Gear Leggings: Sports Bra: