The Ground Force 360 is the latest addition to Cooper’s arsenal. It is the authority in ground based core training. The GF360 was designed by Scott Douglas of Clearwater, Florida (www.rotationalexercise.com). Check out the video to see it in action! The GF360 has the ability to deliver concentric contraction in both direction as seen in the video as well as concentric/ eccentric loading with eccentric overloading available at a ratio of 1:2. It also can train with concentric only with no eccetric load.