In my book, I refer to an “FES bike”. This is a notoriously clever device.
It stands for Functional Electrical Stimulation, which means the pads I wear are programmed to provide electrical pulses to my muscles at the precise time my muscles need to be stimulated during revolutions of my ride. Super clever, huh?
This is what it looks like (that’s part of the tilt table behind it):
My book, if you’re interested, is available on Amazon here.