I am happy to announce the release of my latest update to this site, a Repetitive Strain Injury (RSI) Frequently Ask Questions (FAQ) page along with answers! This is basically a download of information from my head as to my understanding of RSI, along with relevant links and information, and is without doubt the largest [...]

An excellent RSI article has appeared on BBC News technology section title “The mouse is biting some PC users“. The article quite concisely summarises the main issues at hand (no pun intended) with RSI.
The article indicates that RSI is part of an ever increasing phenomena affecting 115,000 workers last year a staggering 34% increase [...]

In an interesting video clip from the BBC’s ‘Click’ programme called ‘Computers Controlled by Gesture’, there is a summary of current developments in the world of human gesture control as an input device. It brings back memories of Tom Cruise in “Minority Report“.
Whether this form of computer input technology will ever see serious light of [...]

When you position your hands at a keyboard as discussed in an earlier article referring to ‘typing with clawed hands’, bad positioning of the wrist can lead to overuse injuries caused by strain in your forearm extensor muscles.
The common position for hands hovering above a keyboard is as shown on the right, which I refer [...]

The following article is a follow-on from RSI – What to do? (Part 1 – RSI Initial Symptoms) and RSI – What to do? (Part 2 – RSI Dealing With Progressive Symptoms) .
OK, so you are experiencing a long term RSI condition, ie it has gradually worsened for more than 2 years. You [...]

RSI symptoms are very often the result of extremely tight (overused) forearm extensor muscles. These muscles are located in the upper forearm region. They are used to raise the wrist and fingers, which is the primary motion involved in unergonomic keyboard and mouse driven activities.
The symptoms have been described by a few physicians to [...]

The act of a human clicking a mouse to control a computer has been around since the inception of window based GUI (Graphical User Interface) systems. Before GUI based systems were around, keyboards were the prominent way of user interaction with a computer. Mouse based systems were a leap forward in terms of [...]

I’ve had a rather unpleasant history with mouse use, culminating in the inability to use a bog standard mouse with either hand for more than 2-3 minutes before the onset of severe pain. This reaction has built up over many years of mouse (ab)usage, and I have a certain loathing for the devices now. [...]

Lateral (Ulnar) wrist deviation
A very common bad ergonomic practice is wrist deviation when using a keyboard. Keyboards have never been the most ergonomically designed devices, and users tend to hold their wrists very central to the keyboard whilst inducing a lateral deviation in their wrist angle.
Lateral (ulnar) deviation can eventually lead to wrist [...]

With any computer input device, it’s how you use it that is important.
The prevalence is for keyboard users to use ‘clawed’ hands when using a keyboard to enter text. By this I mean when a user readies their hand position over the keyboard before they type, or whilst in thought between text entries, the hands [...]