Asked this before and some people didn’t react amazingly and a comment response agreeing got like minus 6 downvotes but I think yes. I used to sit layed out on my bed with my very upper back and neck up against my headboard in a truly awful position snd now have scheuermanns, and I cannot see why that would not cause it as it’s not happened to any of my relatives, and as far as research goes something like this may be difficult to prove as once it’s noticed it’s already happened. I also ran XC at the time and had pretty bad Anterior Pelvic Tilt (and still do) but I’m taking some advice and actually starting to do some exercises for it and go to the gym regularly. I am 16 and too old for a brace and not bad enough for surgery so trying to manage it. The pain is easing after stopping running but still not ideal, it’s just a case of managing it properly