Most of us who have worked long hours in the studio know about back and shoulder problems caused by sitting in the same spot while concentrating hard on the task at hand, paying no attention to those annoying little pains.
"I don't have to sit at a desk doing a boring job every day.
We are also now paying more attention to those who insist we get out of the chair (no matter how good it is) and stretch periodically.
Good console ergonomics can also contribute to back and shoulder health, and most console manufacturers take into account the amount and frequency of awkward stretches users might have to endure when they design their control surfaces (although now, with the trend toward small-format, multifunction digital consoles, this is becoming less of an issue).
Two published surveys of working musicians back in the '80s concluded that about 50% of them had some kind of job-related pain, but an occupational therapist I know puts the number today closer to 75%.
Composer and pianist Robert Schumann complained of overuse injuries more than 150 years ago.