RSI Can Put You Out of Business

In medical terms, repetitive strain injury (RSI) is a cumulative trauma disorder (CTD) caused by prolonged repetitive, awkward hand movements that damage muscles, tendons, and nerves of the neck, shoulder, forearm, and hand, causing pain, weakness, numbness, or impairment of movement. It can be caused by working long periods at a computer, either in a chair with poor support, no foot rest, and using a square or small keyboard.

Typing and clicking a mouse button can be harmful. Injured muscles contract, decreasing the range of motion. As the typist continues to work, the level of stress increases. At first they suffer wrist pain and head aches, but after a while the pain increases.

Professionals that understand the disease know that slowing down for a month or two out of the year, taking breaks, and listening to their body will keep them working. Those who don't listen or make excuses (I can't afford a secretary's chair or ergonomic/split keyboard) end up with a debilitating chronic disorder that can take several hundreds of dollars and more than six months to correct. In effect - they are out of business.

What Happens with RSI?

The sheaths that cover tendons run out of lubrication because they aren't allowed to rest. The tendon and sheath chafe, causing pain. The tendons become inflamed, and pinch nerves. This causes numbness, tingling, or hypersensitivity to touch.

Poor posture can lead to severe neck and back injuries. Repetitive reaching for a mouse can lead to arm and neck strain as well as spinal strain.

RSI is not a medical diagnosis, but a family of disorders, mistakenly called carpal tunnel syndrome. One recent study even reported that frequent computer users are no more likely to develop CTS than non-computer users.

• poor posture


• poor technique


• Do not use a keyboard designed for computer users


• Use a computer more than two hours a day


• Your job that requires constant computer use,


• Don't take breaks


• Use a manager chair, or don't use a secretary's chair


• Don't exercise


• Have stressful deadlines, work 7 days a week


• Work in a high-pressure environment


• Have arthritis, diabetes, or another serious medical condition


• Have long fingernails


• Have an unhealthy, or sedentary lifestyle


• Are overweight


• Don't believe you are at risk

You are at risk of you experience:

• Fatigue


• Weakness in the hands or forearms


• Tingling, numbness, or loss of sensation


• Heaviness Clumsiness in your hands


• You drop things or lack coordination


• Cold hands?


• Frequent self-massage


• Avoid using one hand


• Use your forearm, feet, or shoulder to open doors?


• Not play sports you once enjoyed?


• Have trouble sleeping
• When typing you notice that you are holding one wrist 'up' off the wrist support, or find yourself reaching for keys that you'd normally touch without moving your wrist.

The first sign is often irritability with family members, being short tempered, or having an emotional outburst while working, but without any apparent cause.

When I find myself strained, I wear a fingerless brace like the one above. It supports my wrist and forces me to move in a different patter, it slows my typing speed down, and gives me a chance to retrain my hands to move properly. That said, I haven't worn my wrist braces since buying an ergonomic keyboard.


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