Originally Posted by
caloso
On a freewheel bike if your foot comes off, you can just stop the cranks and put the foot back on the pedal. On a FG, the pedals keep going around. If this happens during a sprint, I think most riders will simply crash. No wait, I take that back. First they'll be flung hard forward, their reproductive bits onto the top tube and their teeth on to the handlebars, and then they'll crash.
As I've said above, if your foot comes off a flat pedal in a sprint, the result would be exactly the same on either type of bike. Sprints aren't usually made from a seated position and if you lose contact with the pedal, the dangly bits aren't going to like it.