No, those don't fit the bill, for a couple reasons:
*The electronic triggering was an afterthought, so you're relying on on vibration to be carried through plastic
, down to the trigger. That means you have to be annoyingly deliberate and energy-wasting. Granted, I haven't tried them myself, though, so I suppose that analysis is just theoretical – maybe it actually works in practice – but from that review (about picking up floor vibrations), it doesn't sound promising.
*You can't use your heel for anything. When I had my aforementioned canvases set up (also with a Trigger|iO), I placed some at my heel, and others near the ball of my foot. Now, a single solid Zendrum wouldn't likely work, for this, either, because of the variety of foot sizes that exist, as the feet can't adapt to different shapes of instruments the way hands can. However, using two Zen-foot-drums should solve that. They'd just be lines of triggers, and you'd attach them to some kind of board, parallel to each other, with the space in between dictated by what is comfortable for you.
(Imagine this, only with the possibility of the front and back triggering different sounds.)