Isometric exercise is a fundamental part of Martial Art training. this device is the ultimate isometric trainer for the whole body... http://www.bullworker.ws
Pah, for wannabe can't be bothered to sweat, pencil neck know nothings.....and as for martial arts, this is not a truly isometric exercise and in many cases the angle by which you would nead to use the damn thing can corrupt your line and decrease your explosive capacity.......I don't think you were being serious though so....LOL