I'm in my early-mid 50s, I've been programming for over 40 years and like you I have experienced more cramps and discomfort from Ctrl/Shift + WASD while gaming than any programming I have done.
I am a rock climber, however, so I have some significant muscular development in my forearms. And the thought of that reminds me that from time to time I have had problems with my knees, which started when I was a child. My knees become painful and collapse under me. And the solution has been to do weighted leg extensions to strengthen the push/kick muscles.
So I wonder whether these wrist problems can be overcome by strengthening exercises.
EDIT: and then I scroll down and see that Fabien is a climber. So I guess that refutes my theory.
What immediately comes to mind for me is: how much are you holding down? Compare gaming and programming and it's pretty obvious which one is going to be the killer.
I am a rock climber, however, so I have some significant muscular development in my forearms. And the thought of that reminds me that from time to time I have had problems with my knees, which started when I was a child. My knees become painful and collapse under me. And the solution has been to do weighted leg extensions to strengthen the push/kick muscles.
So I wonder whether these wrist problems can be overcome by strengthening exercises.
EDIT: and then I scroll down and see that Fabien is a climber. So I guess that refutes my theory.