Last updated: Jan-01-09
Added: Oct 7, 2014 Hi Allen W,
Having done some research, their website states what the product is University tested, and proves increased levels of muscle activation.
Here is the link, http://www.pflexx.com/the-technology
Posted: Oct 20, 2014
I'm in my 70s and had knee fused 3 years ago. I find a light weight camping tripod stool ideal for retaurants and waiting rooms (Campmore). For the elevated toilet seat I use an adjustable tub stool ...
Dr. Robert Klapper: