[geoelectric]

I think the idea for these tends to be more like having the little cycle thing under your desk. You don't use them to exercise at full tilt or pull sprints, more like you spend an hour or two doing whatever while keeping your legs moving on something with just enough resistance to maybe matter.

I briefly used a FitDesk (which is an exercise cycle with a lap-desk-quality platform rather than handlebars) and the cycling motions really weren't an issue for typing. But they did make the monitor bounce a lot. That was way more of a problem.