In an article in The Union, a newspaper in Nevada County, CA, Dave Moller writes about workstation setup and computer ergonomics. The article discusses how best to arrange your workstation, and the importance of exercises and taking breaks. This is all pretty standard advice, and something you’ve probably heard a dozen times before, but a reminder now and then doesn’t hurt.
One thing that caught my attention was a short section on “reducing lever arm forces” by moving things such as “coffee cup, pens and telephone to within 10 inches of your body”.
I think this is actually pretty important. Well, not those items, at least not for me. But one of the things I did in the past that I believe caused me a lot of pain was when I had my mouse located far to the right of my keyboard. Since I was centered over the letter keys, every time I used the mouse, I had to reach way over and try to perform precise movements with my arm partly extended. This requires more muscular control than you might realize, and over time it fatigued the smaller muscles of the arm and hand, which caused me to rest my arm on the table or chair arm, which caused me to sort of lean to one side, which made my posture even worse than it normally is.
Currently I’m mousing with my left hand, which works out pretty well. The mouse is to the immediate left of my keyboard, and the keyboard and numpad is to the immediate right of the letter keys. This setup feels pretty well balanced. Of course, for a right-handed person, this means getting used to mousing with your left hand, and using a mouse that works left-handed. It took me a few weeks to acclimate to the new setup, but I think it’s better for me long-term.