whiteangel said:Do you find that using a trackball is more comfortable that using a normal mouse? My right arm has gotten so painful, numb and weak that my lecturer asked me to use my left hand to mouse instead, which I am trying now.
I seriously do hope that I am not aggravating the condition by forcing myself to use the trackball. Do you find that your hand gets more tense as you try to control the ball more precisely? Or is it just me doing it wrong?
I liked the large Kensington trackball much better than the small trackball on my old Powerbook Duo. But if I could rip out my iBook trackpad and replace it with the Duo trackball, I would do it. The control was much better.
My problem was wrist tendonitis in my right wrist due to overmousing (?) which was helped by moving to a trackball with my left hand. Arm pain might be a little different problem, also related to sitting position and the position of your arms on the keyboard. I might have been having arm pain when I got the armrests I posted earlier, I don't recall, but I know they really allowed me to work longer.
If your problems continue, you may want to look for webpages about ergonomics.
If you are getting more tense when you are positioning the trackball more precisely, it is probably first due to inexperience. Precise positioning eventually became second nature to me. There should be a setting for the trackball that it is less sensitive (moves less distance for the amount of roll) when it is moved slowly, and more sensitive when it is moved quickly.
I remember trying to set it so that I could position something well in a graphics program when I moved it slowly, but being able to give it a quick spin to move the cursor from corner to corner when necessary.
I seem to recall reading an article somewhere where a reviewer took three days to get used to a trackball.
Good luck and keep us posted