Icyclist: you are doing the right thing--although it is not the time to fall (as if there is a good time!)

My surgeon who fixed my hip told me the sooner you get back on the bike the sooner you will heal after insertion of a Zickel Nail:

http://www.jaaos.org/content/8/1/56/...c-18.large.jpg

You need blood circulation to promote healing, so a week after the surgery was on a wind trainer and still had the staples!
(I did wait a month to ride on the road!)

Although sweating in a cast is no fun, because afterward you need a coat hanger to relieve the itch under the cast!