I'd imagine that wearing a sword on your hip for most of your life would affect your body somehow.
Not to detract from any more answers that might come your way but a relevant answer from a prior question may be helpful. It's a bit more specific to archers though.
Credit goes to u/jschooltiger who had a great response there and a bit below it I kicked in a meager contribution with what I could from my own background medical knowledge.
Hope that helps!