Why it Hurts
How Far Do You Have to Go?
Approx. 2 inches
That is 4,000,000 inches, which is 333,333 feet or (@5280 feet to a mile) 63.13 miles or 101 Kilometers a year. So you are walking on your hands for over a mile a week! Doesn't using you larger upper arms muscles make more sense now?
Typists using mechanical typewriters were thought not to suffer RSI so much simply because the mechanical mechanism took a short period of time to move the key to the paper and then return to rest. Another key couldn't be used during this period so, even though small, a Nano-Break, in which the finger muscles got a short rest interval, was always had. Additionally and differently those typist's hands and arms were always moving in 3 dimensions and not just two as with the now flat computer keyboard, so promoting circulation.
They never had to contend with mousing and considering that most people suffer in there mousing limb, it is seemingly the most culpable in causing premature limb wear due to Static Limb Posture.
Gripped Mice and Trackballs:
We can therefore only recommend the use of other computer mouse devices to those who can hold their breath under water for longer than 10 minutes, because they are the only people who overcome the biomechanics and biochemistry that make side effects from mousing with any other devices, almost inevitable. See the American Journal Of Industrial Medicine Article on the Clinical References Page. So the rest of us must mouse within the confines that nature has prescribed for us and use the tools that work with us or suffer the consequences.
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The AirO2bic Mouse design has been granted a U.S. Patent.
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