Back extensions have been shown to be one of the best preventative movements we can do for our low back. It loves it. Why? Our backs love to extend but often in our modern lifestyle we don't give it the opportunity, spending most of our time bent forwards, sitting and lifting. Bending back (or extending) is a rare occurrence but if we do it is linked with significantly lower levels of back pain.
So how do I back bend?
After sitting, bending forwards, or lifting something;
Repeat 1-10x, and multiple times throughout the day.
Let me know how you get on with this in the comments.
p.s. To learn more about the back bend take a look at this article which goes into more detail.