So, I'm going to try and rephrase a question I have from Anna's post... and one you never answered on the forum thread you posted...

My previous dalmatian had excellent definition in her hind quarters... they have very strong legs, hence why they can run for miles. She acquired these amazing muscles (because she didn't have them when I had her) by running her with me on my bike every day for a very long time.

Yes, genetics has something to do with it... but...

I know that you cannot get a dog that looks like that from genetics. How, exactly, do you get your dogs in amazing shape for showing them?