Start by standing up in the mountain pose, place the feet together, inhale and lift the arms up, keeping them in line with the body and parallel to one another.
Exhale and bend the knees down so that the thighs are as parallel to the floor as possible. Keep the natural alignment of the spine and bring the tailbone toward the floor.
Take care not to collapse the arms and chest down. Keep the shoulders and chest open.
Hold this position for about 30 seconds, breathing normally through out. To release inhale and straighten the legs, exhale and lower the arms down.
The chair yoga posture helps to strengthen the thighs, knees, calves, arms and open the chest.