The outward bent "knees" they do in that position is the same position Baxters Orthopedic doctor moved his legs to show that it was dislocated. Back when he was a puppy. He bent the leg outward like that, and Baxter winced. During his obstruction surgery, the ER doc put his leg back in the socket. Honestly I have wondered why they lay like that given the hip dysplasia they tend to have. I think the answer is simply this: English Bulldogs have underformed hip joints which *enables* them to lay like this. Its similar to looking "double jointed". Whether it puts strain on the joint or not, I am not sure. But I understand where her thinking is coming from. Its not a natural direction for a dogs leg to bend. I think in the end, just make sure your pup is on a good Glucosamine supplement weekly, and any joint issues will be minimized. Was reading a study a few months ago and they said hip dysplasia in breeds prone to hip dysplasia can be minimized by nearly 65% by simply keeping their body weight down. Weight pressing on the joint is the #1 cause of hip dysplasia in old age.
All three of mine have always laid that way "Super Bulldog". I think it relieves weight from their joints, and as previously stated, helps them keep cool. Bocephus is on his cooleroo right now in that position