All the Amish here in my rural Pa. area use these and they do about 5 sequences on each foot and then switch off. Some call them scooters and us English call them push bikes. I actually saw one of these ridden by a Danish or foreign guy on one of the Colorado tours. He rode it the entire tour and they actually race them overseas somewhere just like our crit races here. BTW The Amish and Mennonite ride different colored buggies one is black and one is grey. I think the Amish are the black ones.

Zman