http://www.youtube.com/watch?v=tELdPRYj62M&feature=related
&
http://www.youtube.com/watch?v=DvhMDzdAFxQ
Lie on your Back,Knees bent shoulder apart,clasp one knee and pull
toward you as far as you can,hold for 30 seconds,lower knee to the
floor,straighten the same leg to relax,move to original position and repeat
with the other leg.
Next, clasp both knees from the same position,bring to your chest,hold
for 30 seconds and release,repeat a few times.
This Exercise releases and relaxes the lowe back.