Foam roller: Lower back release

The Foam roller: Lower back release will improve the mobility in your lower back and improve both your running posture and your technique.

Technique
Lie on the floor and place the foam roller in the small of your back.
Cross your hands over your chest.

Use your legs to roll the foam roller up to the middle of your spine.

Roll it back down.

If you find a section which is tighter than the rest of your spine, spend more time rolling up and down over this section.

Be safe
Always use slow, controlled movements.