Originally posted by ParNone
Hiya calpitgal!

Not too long ago, I started jogging around the neighborhood
with my Collie, to get in shape for agility (that is for me to get
in shape, not him). The pounding on the cement was making
my joints hurt, so we stopped. I figure if it's hurting me,
it can't be good for my dog either. We stick to grass and sand
now for jogging and running and only use cement for walking.

Par...
hmmm.. he never limps or acts sore. it is making him big in the chest. Thanks.