IIRC I've always been old that I should move my whole arm with the mouse. The idea being that it's a small movement for your elbow/shoulder but a much larger movement for you wrist so you can avoid wrist injuries by moving your whole arm.
Ideally you move your fingers, not your arm or wrist. Realistically though, nobody is playing games by moving their arm, even if that is perhaps what you are suppose to do.
I mean, those same ergonomics guides also tell you to keep your back straight and your feet flat on the floor in front of you. How many people do that?
well, I don't move the wrist as well - the idea is that you rest your wrist in a comfortable position, and move it with your fingers, the full range of motion needed is less than an inch.
If your arm is up in the air so that it can move the mouse, then it will get tired after a few hours, won't it?
IIRC I've always been old that I should move my whole arm with the mouse. The idea being that it's a small movement for your elbow/shoulder but a much larger movement for you wrist so you can avoid wrist injuries by moving your whole arm.