Found an article with an in-depth analysis of the neanderthal Skeletal structure…
To quote from the article:
Neanderthals walked upright, had spines straighter than those of modern man, would have been strong and sturdy, and breathed deeply from their bell-, not barrel-shaped ribcages, according to a recently published article written by an international team of scientists.
Busting open the myth of the arm-dragging, hunched-over caveman, the scientists, based at universities in Israel, Spain, and the United States, drew their conclusions from a recently completed 3D virtual reconstruction of the ribcage of the Kebara 2 skeleton — aka “Moshe” — the headless but almost complete Neanderthal remains unearthed in 1983 in a northern Israel cave.
The link to the original paper published after peer review in nature communications is below -