As I am in the software industry, I am in a higher risk group to develop RSI (Repetitive strain injury), and thus I am taking measures to prevent this from happening. I keep a relatively good measure and a good keyboard, but one thing that I have some questions about is that on several websites, one of the recommendations to prevent RSI is to use keyboard shortcuts more and use the mouse less.
From this it would seem that using the mouse makes the risk of RSI higher than the keyboard does. But is there any evidence backing this up? Is RSI mainly due to mouse usage rather than keyboard usage?