Originally Posted by
Szczuldo
http://www.youtube.com/watch?v=g34iDuZBqto
if you are going to crash, do it like that.
I'd be riding the trainer a day or so after I get the cast and squeeze a ball whenever you are sitting around to reduce atrophy.
Careful with the squeeze a ball thing.
If it's the navicular, they are notoriously hard to heal, and any usage of the wrist or hand may be detrimental.
If it's the navicular, check with your doctor and get explicit clearance / directions for ANYTHING you might think of doing. He'll probably even tell you to switch hands for your personal time too.
If it's not the navicular, then the risks of non healing are significantly reduced. But you should still clear your plans with your doctor.