lifestyle misalignments
 

Here is an abridged extract from Henry Cotton’s book This Game of Golf that may be relevant.

Towards the middle of 1933, after ten years of professional golf, I noticed my spine bent over to the right and tilted forward owing to hours and hours of golf practice and no contra movements whatsoever; in fact, I only had to try to stand still for an instant for my right side to slump down, as can be seen in the photo taken with Walter Hagen that year. Once I realized how deformed I had become, a sort of deformation de métier* as the French say, I began to do corrective exercises.

I had my measurements taken, and started in earnest to get back to the normal position I had so long lost. This meant building up my muscles to hold the tilting spine. I worked hard at my exercises all through the winter of 1933-34, and, by the spring of 1934, I was already much better, I continued with exercises regularly until the war, doing contra movements to build up the muscles which were stretched on one side only.

*Deformation caused by one’s line of work.