Among the products that are touted to help reduce pain and injury are wrist rests, negative tilting keyboards, sliding mouse trays and an array of ergonomically correct keyboards that keep hands and wrists from contorting during typing. The trouble is that there has been little research and virtually no data to suggest that any of the devices soothe damaged tendons and muscles or prevent future injury. There has been little actual scientific study. To make matters more confusing, experts find that what may help ease one person's pain can worsen another's. These devices have to be looked at on an individual basis.
Most sufferers find relief only through a lengthy process of trial and error.
Next, he looked into high-tech speech recognition systems that would allow him to dictate rather than type. And you can't dictate to the computer and talk to patients at the same time. He then bought a three-piece keyboard that was designed to take some of the strain off his hands, wrists and arms. But when they still ached, Eliasson turned to a futuristic-looking keyboard device that cradles each hand and allows fingers to type with minimal movement. Any time there are a lot of purported solutions in medicine, it means that nobody really knows the answer.