Here are a few good options:

* Good Morning Exercise
Keep a bar with some weight on your shoulders. Bend at the waist with your knees bent a little and the back straight till the trunk is parallel to the ground. Relax in the upright position and repeat.

* Hamstring Stretch
Lie on your back and hold on the back of your thigh, lift the knee 90* above the ground and straighten it until it exerts a mild stretch on the back of the thigh. This exercise helps increase the muscle flexibility and reduce the stress on the lower back exerted through the pelvis.

* Piriformis Stretch
Lying on your back, cross the right leg over the left knee, grasp the back of the left thigh and pull the knee close to the chest. This stretch helps in the overall flexibility of the pelvic region.

* Psoas Stretch
Lying on your back, bend the knee close to the chest and clasp it just below the knee.

* Pelvic Stretch
Lying on your back, fold your arms, bend the knees and soles directed to the floor. Without supporting the hands, lift your buttocks off the floor and slowly rest them back.

* Hip Stretch
Lying on your back at the edge of the bed, hold your knees to the chest. Keeping one knee in bending position, lower the other knee till a stretch is felt on the hips.

* Abdominal Curl Ups
Three types of abdominal curls given below can be practiced separately. Lie on your back with knees bend. Lift up your trunk and try to reach below the knees, try reaching the knees with the elbows, and bending forward with the hands folded behind the head.

* Lumbar Extension Stretch
Lie on your abdomen and slowly use your forearms to raise your upper body above the ground, and then lie down again. This back arching is important to help in stabilizing the spine.