Well I think going for a walk would be considered "forced" exercise because they are on a leash. Not that she acts like she's forced or anything, she's the one howling her head off the minute she sees the leash and wanting to drag me down the road. I make sure I don't feed them right before or after exercising (I wait at least 30 minutes, is that long enough?). I don't encourage jumping, but she jumps a lot when playing with Nebo. I just worry about any joint damage (yes, I'm paranoid).