DrGonzo wrote:
also i guess the angle of arms to the desk is important, as you need to keep your wrists straight and your arms completely relaxed!
Which is where the keyboard comes in. I don't want to take issue with professional advice - I'm no physio - but I do have a problem with what is now called "mouse elbow" and I do find that that the keyboard and mouse make a big difference. To the point where I've bought my own Natural 4000 for use at work.
They feel odd at first, but you get used to them pretty quickly.
Lap top machines are especially bad - worse than a normal stand alone keyboard because they force your wrists into such cramped positions.
Here's a thought: Get the keyboard first and train yourself to use the mouse with the other hand. That's not a lot of money to spend. I switch the mouse to suit now. If my right elbow starts feeling a little off I switch the mouse to my left hand and vice versa.