Discussion: Arm Bike?

Can you show me what this looks like? I wonder if the grounded Goose could use it?

Looks something like this.

http://www.gymcor.com/ubeflupboer.html

I figure it's as close to paddle training as one can get at the gym, since they don't have your machine there. :)
Also least likely to hurt my back, which I figured a rowing machine might have.

back probs again...bummer.