The Zero Tension Mouse is an ergonomic pointing device designed to keep your hand in a neutral position as you use your computer.
With an appearance reminiscent of the Quill Aerobic Mouse, Evoluent VerticalMouse, and the 3M Renaissance Mouse, the Zero Tension Mouse is designed to be held with your hand in a vertical position (as if you were shaking hands with someone), with the bottom of your hand resting on the base of the mouse, and your fingers curled around the vertical portion of the device. There are two buttons, one each for your index and middle fingers, which correspond with the left-click and right-click functions of a normal mouse. The top of the Zero Tension Mouse contains a scroll wheel, operated with the thumb, which also acts as a third mouse button.
Unlike a normal, horizontal mouse, the wrist doesn’t move at all. The mouse is positioned by using your entire arm. This will likely require some practice in order to learn the fine mouse control needed for detailed work such as CAD or image manipulation.
According to clinical tests conducted by Active Release Techniques, creators of the device, the Zero Tension Mouse is the only computer mouse that relaxes all 8 muscle groups that cause carpal tunnel syndrome and other overuse injuries. Read more about the medical benefits of this device in the In Depth section of the Zero Tension Mouse web site, which also includes anatomy diagrams and suggested arm, wrist and hand stretches.
The Zero Tension Mouse works with both Windows and Macintosh computers, and requires a USB connection. It comes in three sizes, for right-handed use only. It is available in translucent blue, or black. List price is $79.95.
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