Goosey
.
[ame=http://www.youtube.com/watch?v=1Z-FyeG7pqY&feature=youtube_gdata_player]MedX Lumbar Extension Machine - YouTube[/ame]
This gives you an idea of the bio-mechanics of the spine.
I've used these machines.
It makes you appreciate how the back works when doing a good morning.
I personally would use the stiffy.
This gives you an idea of the bio-mechanics of the spine.
I've used these machines.
It makes you appreciate how the back works when doing a good morning.
I personally would use the stiffy.