I'd like to start running with my lab cross - and also do some agility with her if she gets into it. She is a year old this month, medium size (smaller than a typical lab). She has some spaniel in her too, but given that labs are prone to hip problems would I be better to leave it until she is 18 months before I start running with her? She has loads of energy but is a lazy bones around the house. Outside on off-lead walks she loves to run.
My aim would be to run with her off lead. There is a big disused air field near us that we do a lot of walks, so it is about a mile round on a tarmac path on a grass field. I imagine that at first I'd be a bit (ahem) slow, as while I do a lot of walking I havent run for about a year (since we got mop dog in fact!). So its not like I'd be sprinting around or anything.
What do you think - start slowly or err on the side of caution and wait. If there were any hip problems when would they start to show themselves?