4. Seated Hamstrings Stretch

A

Sit with your buttocks on the edge of a chair, knees bent, feet flat on floor, chest lifted and abs tight. Lift and extend right leg at hip height, toes up, and hinge torso forward from hips, keeping spine in a neutral position. (If you're inflexible, begin with right leg extended and heel on floor. When you've achieved enough flexibility, lift leg to hip height.) Place hands on your lower leg [shown] or reach for your toes, depending on your flexibility; at the same time, slightly lift tailbone to get more of a stretch. Switch legs and repeat.

B