
I do hope the hour's exercise is planned for when your dog is an adult & not from the outset.
HD can occur to some degree in nearly every breed & IMHO
ALL breeding dogs should be hip & elbow scored before being bred from. Puppies can be PennHipped from 4 months of age unlike the BVA scheme, which means the health status of puppies can be known before any activities training is started & with
correctly planned exercise the effects of any HD can be minimised.
As for living with cats I have a good few friends who have both living in harmony, it's all down to socialising & training from the outset.
The same goes for recall, good basic training from the moment your puppy comes home to make returning to you exceptionally rewarding, then it will always be there despite the periods when hormones dominate behaviour & you have to go back to basics.
Good luck in your search