I'm a time-triallist and runner, and I'm having an operation in a few days to remove a bunion and straighten my toes. I'm going to be off my feet for quite a few weeks.

I'm wondering what I can do to maintain my fitness, or at least stop it from completely declining. Any ideas?

I do have a weak upper body, but that has never bothered me. Always thought that muscles up top were just luggage when racing.

Although I'm pretty light (63kg/174cm), I reckon I could loose a bit of flab; is now a good opportunity?