The skeleton of an archer recovered from the Mary Rose was affected by a lifetime drawing a heavy bow.

https://www.google.ca/search?q=archer+mary+rose&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjw85LtoYDiAhVCHqwKHayuBPsQ_AUIDigB&biw=1366&bih=625#imgrc=yEcaonvuNWudYM:

I wonder what effect (if any) a lifetime of slinging would have on the skeleton.

  Interesting question.  I have no idea.  Perhaps a member who is a medical professional can answer it. 

not an expert. :P
slingers would have what baseball pitchers have, maybe to a lesser degree since we use slings. throwing side has more degrees of external rotation than internal rotation, this becomes obvious in most throwers when stretching. this is not only just a muscle flexibility thing , throwing changes bones .

from a quick search https://treadathletics.com/external-rotation-throw-harder/

Quote:

A long history of throwing (humeral retroversion – the actual warping of the humeral head itself, was shown to account for about 10.6 degrees of increased external rotation motion in pro pitchers who have been throwing since childhood)

The shoulders would probably become arthritic from use.

I was a professional tennis player. I cross trained with slinging all through my teenage years.

My right arm is 1 inch longer than my left measuring from elbow to finger tips. Much more if you measure from shoulder to finger tips.

What Sorach mentioned above also applies.

I think if I trained as hard in slinging as I did with tennis, the result would be similar.

I remember C_A saying something about luis' elbow

only that he buggered it up in israel.
Hasn't been 100% since.

hello,
It's the first time I see this photo with the skeleton.
The diference of the arms is very impressive.
I enjoy to see it.
Thanks