So I've just started having the time to walk/run with my dogs. Especially Banjo who is maybe not high energy, but easily excitable. She runs out of energy fast when you walk/run with her, but when she hasn't had anything to do all day she is all over the place. My question is, is a run of the same distance, but less time worth the same as a walk that is more time but again, the same distance? And how much should we wear her down? My boyfriend can literally outrun her distance and speed, but when should we call it quits for her?