Gregg writes "Most of the time these mice are marketed towards people suffering from RSI, however anyone feeling discomfort using a regular mouse should be able to switch to any of these pointing devices that were created with ergonomics, and only ergonomics in mind. TechSpot's comparison includes three products: the Perific Wireless Dual Mouse, 3M Ergonomic 'Renaissance' Mouse, and Evoluent's VerticalMouse 2." From the article: "People are sometimes under the impression that only those who work at a computer all day are at risk of repetitive stress injuries (RSI). Unfortunately that is not true and even people spending an hour or two per day using a computer are now suffering from RSI. Even if you aren't going to purchase ergonomic products for your everyday use, there are still some very helpful tips on how to lower the risk of someday suffering from RSI. Many specialists recommend taking short breaks after long periods of computer use to reduce risk. It is also a good idea to do a few quick and simple hand/wrist stretches that will help make sure you are doing your best to try and stay healthy."
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.