Aqua jogging is a great substitute. It might be the best substitute actually...
besides not getting used to the pounding. If you are a bouyant body (like I
am), and you keep your turnover high, you might be able to get used to not
having a belt. When I had IT & patella tendon issues, aqua jogging helped me--
but I wasn't training for a marathon... There might be limits to how far you
can effectively train using aqua jogging.

Good luck!

Zach

--- In RASAC@yahoogroups.com, "mathew.carrico" <mcarrico@...> wrote:
>
> I recently found out that I fractured the carliage in my knee (not running of
course...lol) and I'm on the shelf for about 8 weeks. I'm still planning for a
fall marathon and I'm looking for anyone who has done aqua running. Is it
sufficiant to keep me on pace and where can I find the proper floatation device
to use? I've been to a few places and struck out so far. Any thoughts and
suggestions for my training over the next 8 weeks would be helpful from anyone.
>
> Happy Trails.
>
> Matt
>