I could be wrong here - and I am sure someone will let us know the correct answer if I am.
I am sure that I have read on these boards that you shouldn't do any forced excercise with any dog before they have finished growing - around 1 1/2 - 2 years. Before this and you risk damaging their growth plates(?) If you do a search on the forums you will come up with your answer.
There are plenty of members who do regulary run with their dogs, I run 3 miles a day with Billy and he loves it. In the extreme summer weather I leave him at home as it gets far too hot for him here. Also, build the distance up slowly - we started with the couch-to-5k plan!!!
Sarah & Billy (Floppy/Docked) Brindle,Rescued 8/5/06 born ?/?/04. CGC
Moved from Sunny CA to Beautiful UK.
Loves the open countryside, hates the rain!!
Cruciate Surgery Dec 2011.