I am getting the fitbit flex. I wanted to ask about something. I have an exercise machine that sits on the floor and you have to sit behind it and strap your feet in to the peddles. This thing is electronic but as the peddles move, you have to keep up with them. You obviously do not move anywhere. You're stuck in one spot. MY question is this. Can I strap the fitbit on my ankle while I am working out, so that the app will record how much I move? Thanks in advance for any help anyone can give me.