I have mentioned this in a couple of other forums ( LF.net and SOCNET ) relating to threads discussing weight carried by servicemen in todays conflicts.
I hope I am not breaking any advertisement rules here, but I believe it is a product worthwhile mentioning.
http://www.niqama.com/index.php?100
My understanding of the chair is that instead of the old contraptions that strech your ankles, knees and everything else except your back, this product uses a much lower angle and rollers.
The Niqama chairs are being used by a number of government organisations here, to include the Finnish Air Force F18 squadrons, Army bases, Border Guard and Police units. Of note is that the chair is also in by the Border Guard boat crews.
Numerous civilian instances also have the chair in use, to include hospitals and gyms
And a disclaimer here, it is manufactured by a company located in the same town where I live and there is a member of my family who has been involved in the marketing and selling of the product. My intention is not to market this product, just to let people be aware of it in case they might find it interesting.