If anyone is unaware, this is not how fat naturally distributes on a naturally active person. Those who focus more on running long distances will become very lean, but not get the definition like this. And people who are focused on more stationary heavy labor (moving boxes, blacksmithing, etc) end up stocky with what we in the fat-obsessed west would call “a gut”. Look up pictures of people competing in strongman competitions. They are some of strongest people in the world, but a lot of them would be described as “chubby” by western beauty standards.

Body builders, meanwhile, call it “sculpting” for a reason. They are on some level trading off strength for definition, to make it more aesthetically pleasing by our beauty standards. I don’t know much about the personal training regiments that blockbuster movie productions employ, but I would guess they make similar tradeoffs despite not needing to get actors near the size of those who compete in worldwide competitions

More here (from the discourse on whether or not Maui from Moana was fat): https://rosworms.tumblr.com/post/153927433968/maui-is-not-obese