NOTES:   Difficulty Rating: 25%

Push gently down with one of your hands and twist your hips towards the other side, lowering your knees. As your body twists, turn your head (but not too far) to look in the opposite direction of where your knees have moved.  Relax and feel the pull for a few seconds, then reverse the entire motion, allowing your knees and head to turn in different directions. 

This exercise would be on my top 5 list of best exercises for people suffering from lower back issues.  It is easy to learn and easy to perform.  And from this same lying position, you can quickly move into other exercises that help the lower back.  This one cannot be left out, but it should be done in conjunction with different exercises.