I'm looking for ways to help build muscle in my dogs hindquarters. She is a very active dog loves to run and play with the other dogs. She loves to work and is just over a year old. Sadly she does has a mild case of hip dysplasia. I really want to build up her leg muscle to help prolong the inevitable and keep her happy. Is there anything else specifically I can do to help her gain more muscle in the rear. I'm thinking a wobble board? We do have a good size pond on our property but have yet to be able to get her to swim. Some times she does follow another dog out but is mostly content to just splash around about knee deep. She knows how to play fetch but gets board within about 3 retrieves. She pretty much just loves to play with her fellow doggy friends. Any ideas or exercises to help gain muscle in this area?