What is the most important ergonomic device?
The trick answer of course is that your body is an ergonomic device, which is the topic above, so let’s say “purchased” device. Considering the body to be a chain with some vulnerable links, it would make sense that the link that needs attention would matter most. For folks who just over-grip a mouse, a touchpad or trackball seems most important. If maniacal overuse simply shifts the wear-and-tear to another link in the chain then purchased equipment is not the full answer. If you in particular are only vulnerable at the elbow as I was, it could still take several corrections, chair height, arm rests, split (wider) keyboard, massage, motion, vertical (up-rotated) mouse. The analogy that is offered most often on Sorehand, perhaps by Penny Kome or Sharon Butler is that your body has a health bank account; one mustn’t withdraw faster than you replenish.
