Here is an exercise machine made for those recovering from injuries. The Monark AB 881E Rehab Trainer is an arm or leg ergometer. Its crank arms can be adjusted vertically and horizontally. It has a display to show RPM, pedal revolutions, and time.
The Monark AB 881E has accessory handles for hands and pedals for feet. It measures 18.5 x 21.6 x 21.2 inches (W x H x D). You can find out more about it here.