I haven't started TurboFire but have been watching the discs (I had some that were scratched). They do have a lower impact modifier that you can follow.
C25K - Running for Beginners -Co-Leader
Jackie Warner Personal Training DVD's- Co-Leader
If you are a runner, it doesn't matter how far or how fast. It doesn't matter if today is your first day or if you've been running for twenty years. There is no test to pass, no license to earn, no membership card to get. You just run." J Bingham
| December Minutes: 1,172