STRETCHING FOR LOWER BACK  

First Method

Stand straight on a flat surface with legs apart. The distance of separation of legs must be slightly higher than the shoulder length. Now, bend your body at your waist and try to keep your head at the gap of the legs. Inhale well when you stand upright and gradually release your breath. Jerks should be very less. This stretching requires minimum space and can serve good for people who work long hours sitting in front of computer and also for people who have a big belly. 

Second Method 

Stand straight with legs held close together. Bend slowly and with your arms, hug your shin region. You would look like a person folded into half. Hold the position for few seconds and then get back to the original position. Avoid bouncing while you are stretching your body.