Box Jump Stand with your feet slightly wider than hips-width distance apart in front of a sturdy box that's six to 24 (or more!) inches tall. Simultaneously hinge (bend) your hips, bend your knees, and drive your elbows back. With force, push through both of your feet as you drive your arms forward for momentum and jump up onto the box. You should have full hip extension as you jump up. Land softly and as quiet as you can with both feet on top of the box, your knees at a 90-degree angle, and your chest tall. Step one foot at a time back to the floor, or jump down softly with both feet. This counts as one rep. Image Source: POPSUGAR Photography / Benjamin StoneProduct Credit: Outdoor Voices sports bra, H&M pants, APL sneakers