Here is a deep backbend.

Start in a supine position and extend your legs out in front with your heals down just like in Bridge posture, make sure to engage your glutes now rotate your hand position and push up onto the top of your head first then rotate your elbows in towards each other and then push up off the ground. For this Yoga posture and for safety don't go too far. If you feel your back starting to compress so much that it hurts in your spine. Stop and ease back into Bridge. Deep back bends are not for every body.

If you have lower back pain do not do this pose. You may try it with your arms supporting your lower back or by laying over the edge of your bed. It is best to have a teacher support you a bit for your first time. As you can see in the picture. I am supporting her just enough to hold the pose but not so much that she is not getting the strength benefits.

This pose is excellent for strengthening the upper back and shoulder and stretching the abdominal region.