Oz is pretty ripped now from playing frisbee and chuckit a lot. I have a large backyard, so there is plenty of room to chase a chuckit ball, and he goes running about every other day for at least two miles with my SO. The vet tech even noticed how much more muscle he has lately. You just cant see it under his coat. You can definitely FEEL it though, and its noticeable when we are playing frisbee, he doesn't get tired as quickly, or as easily.
What I did in the begining, and gradually upped all the times was,
five minute warm up
ten minute work out
ten minute cool down.
That really works. It takes a bit before you can see results, but Id rather wait than risk injuring my dog.
After about a month or so of doing just that, and gradually increasing the time (and I used a stopwatch so that I knew exactly how long we had been working) Oz and I have a ten minute warm up, mostly obedience recalls, and a bit of light flirt pole work...
we can work out for thirty minutes, (hard running, Chuckit work, frisbee catching, etc..) and then we have our cool down which is a twenty minute jog around the block..
Though when I dont feel like going around the block, or I know certain dogs will be out at the time, I lunge him out. (yes, like a horse,
, he trots in a circle around me. It works!)
So thats what we do. And you can definitely tell.