The camel pose can be modified to relieve pressure on the back, according to the Yoga Journal. Kneel with knees hip-distance apart. Slowly bend backward, leaning hands on lower back for support. Hold this pose for 30 seconds to one minute, or if comfortable, reach back and hold onto the back of your ankles or your heels. To release, place hands on lower back, push hips down toward floor, and slowly lift torso. Modify this by tucking your toes under or squeezing a block between your upper thighs to help relieve back pressure.