I'm Shimmy, almost 30ish, Male, 6', 158 lbs.
I'm a heavy computer user and sit in front of my homedesk for long intervals (5-18h daily).
I use the computer mostly for working with text (software development), selecting text, accessing menus, drag-drop etc.
In seasons, depending on how heavily I'm sitting at my desk, I suffer from right hand strain and pain.
It might be due the wrong chair height or desk setup, wrong sitting, hand rest or whatever. Please help me find out what's causing the problem, what does this kind of pain signal, and what can I do to avoid it and any related injury.
I suspect it might be because of the hand-rest, is it related? If yes, should I rest/unrest my hand on it? Should I completely remove it? Should I lift my chair a bit? Any other mouse set ups and other alternatives to consider?
In the preceding figure, I tried to mark on this picture the channels I feel pain, but the most of it is either at the wrist knuckle (between arm and hand), and at my hand top.
I use the Tzora Rialto chair, not that I believe anyone knows, but it's a pretty customizable chair, I just don't know to choose the right setup (you can see the available customizations in their website, see the middle tab on the bottom):
Here're some pictures of my desk setup and my hand as I normally sit on it: