Clicking Buttons.

• 10,000 mouse clicks a day is 2,000,000, TWO MILLION a year.
• Based on a 222 working days (44 weeks) (excluding keyboards clicks)

• Say you move your mouse just 2 inches between each click.
• That is 4,000,000 inches or 333,333 feet, some 63.13 miles a year
• In metric units that is 101 Kilometers a year.
• You walk on your hands for over a mile, nearly 2 kilometers, per week!
• Doesn't using you larger upper arms muscles make more sense now?

• Mechanical typewriters were thought not to inflict RSI so much
• The mechanical mechanism meant a wait each time a key was hit
• Though small, a Nano-Break, finger muscles got a rest each time
• Hands and arms were moved not held flat, promoting circulation
• The Computer mouse had not been invented!

• (Mechanical) Typists did not rest their wrists on hard surfaces
• The weight of hands and forearms not pressing on the carpal tunnel
• Blood vessels at the wrist are closest to the surface
• Wrist rests, gel or otherwise, act as a partial tourniquet for the wrist
• They cause the circulation to be physically constricted even more.
• Do not use them we say and also say
• The American Association of Orthopaedic Surgeons

• Trackballs require finger activity with no arm movement at all
• Manipulation of the trackball applies a static load on fingers and thumb
• 1oz of force at thumb tip produces 10 oz on the thumb / palm joint
• 10 oz of force a second for a total of 3 hours a day, equals 6,750 lbs
• 3.38 tons of grip per day or 750+ tons in a 222 working day year
• We are capable of remarkable things, but not indefinitely.

For this page in more depth, click here or find out What to Expect