Just thought I'd share that I found a way to get into position for thoracic bridges that works quite well for me.
On my first couple attempts at this stretch series, I couldn't get into the TB position for the life of me... Just don't have the strength to push myself up.
But using a plastic step ( similar to this: http://www.360conditioning.com/fitness-step.html ) was able to get my body up high enough off the floor that I could push myself into position.
So basically I lie down on the step with my feet up on the wall ( I don't have stall bars), and from there reach my hands back and down to the floor, and from that position I just have just enough strength to push myself up and into position.
Just thought I'd share, as it helped me a great deal, and I would imagine a step is something that is in most gyms.
Cam