To perform the triangle pose, step your right foot back about 4 feet and turn it 90 degrees to the right. Extend your arms out to the sides, parallel to the floor. Reach your right hand down ...
And then, gently lift the chest as if you're drawing the chest forward and you're drawing the hand slightly back to your body. And gently come out of Sphinx Pose. If you'd like, you can try Up Dog.
Roll your shoulders back and down, lift your chest, and reach your arms up overhead ... looking over your front hand. This pose strengthens the legs, increases stamina, and promotes concentration.