Grasp the sides of the chair seat for stability. Keeping your left knee bent, walk your left foot along the floor to the left of the left chair leg, as far as you comfortably can, keeping your ankle under your knee and your knee facing the same direction as your toes.
Then move your right leg to the right, straightening it as much as possible and turning your right foot slightly to the left for stability. Keep your right foot pressed firmly into the floor. (If this is too uncomfortable for your hip, keep the right leg in front of you, foot facing forward.)
Lean your torso toward your bent left knee, keeping both sides of your waist long. Place your left hand (or, if you are more flexible, your left forearm) on your left thigh. Place your right hand on the outside of your right leg.
Inhale and sweep your right arm in a semicircle toward the floor, across your chest, and up over your head. Reach through your right fingertips as you stretch your right side, imagining a line of energy running from your leg to your fingers.
Exhale, reversing the arm sweep until your right hand returns to your leg. Gently pull your navel back and slightly raise your chest upward.
Continue for three rounds, and then change sides and repeat the sequence. Sit in stillness for five additional breaths.