Lie supine on the floor. Bend your knees and set your feet on the floor, heels as close to the sitting bones as possible. Bend your elbows and spread your palms on the floor beside your head, forearms relatively perpendicular to the floor, fingers pointing toward your shoulders.
Step 2:
Pressing your inner feet actively into the floor, exhale and push your tailbone up toward the pubis, firming (but not hardening) the buttocks, and lift the buttocks off the floor. Keep your thighs and inner feet parallel. Take 2 or 3 breaths. Then firmly press the inner hands into the floor and your shoulder blades against the back and lift up onto the crown of your head. Keep your arms parallel. Take 2 or 3 breaths.
Step 3:
Press your feet and hands into the floor, tailbone and shoulder blades against your back, and with an exhalation, lift your head off the floor and straighten your arms. Turn the upper thighs slightly inward and firm the outer thighs. Narrow the hip points and lengthen the tailbone toward the backs of the knees, lifting the pubis toward the navel.
Step 4:
Turn the upper arms outward but keep the weight on the bases of the index fingers. Spread the shoulder blades across the back and let the head hang, or lift it slightly to look down at the floor.
Step 5:
Stay in the pose anywhere from 5 to 10 seconds or more, breathing easily. Repeat anywhere from 3 to 10 times.
Beginner's Tip:
The knees and feet tend to splay as you lift into this pose, which compresses the lower back. In the beginning position, loop and secure a strap around your thighs, just above the knees, to hold the thighs at hip width and parallel to each other. To keep the feet from turning out, place a block between them, with the bases of the big toes pressing the ends of the block. As you go up, press the feet into the block.
Modifications and props:
Often the armpits and/or groins are tight and restrict full movement into this pose. You can support either your hands or feet on a pair of blocks to help yourself realize the full backbend. Be sure to brace the blocks against a wall, and if you like, cover them with a sticky mat to keep the hands or feet from slipping.
Deepen the pose:
Once in the pose, lift your heels away from the floor and press your tailbone toward the ceiling. Walk the feet a little closer to the hands. Then, from the height of the tailbone, press the heels into the floor again. This will increase the depth of the backbend.
Partnering:
A partner can help you learn about the work in the shoulders in this pose. Have your partner stand at your head, facing you. Perform the pose. Your partner can bring his/her hands around the sides of your torso so that his/her palms cover the shoulder blades and encourage them to widen away from the spine.
Info
urdhva = upward
dhanu = bow
Benefits:
Stretches the chest and lungs
Strengthens the arms and wrists, legs, buttocks, abdomen, and spine
Stimulates the thyroid and pituitary
Increases energy and counteracts depression
Therapeutic for asthma, back pain, infertility, and osteoporosis