Working in Comfort B
Infiniium Z-Series Oscilloscopes User’s Guide 67
Mice and Other Input Devices
Various aspects of using mice and other input devices may increase your risk of
discomfort or injury. Observing the following recommendations may reduce that
risk.
• Try to keep your hand, wrist, and forearm in a neutral position while using your
mouse or other input device.
• If you use your thumb to rotate the ball on a trackball or spaceball, keep it in a
relaxed, natural shape, and maintain a neutral posture in your hand, wrist, and
forearm.
• Hold the mouse gently by draping your fingers over it. Keep your hand relaxed
and fingers loose. Do not grip the mouse tightly.
• It takes very little pressure or force from your fingers to activate the buttons or
scroll wheel on your mouse, scrolling mouse, trackball, or other input device.
Using too much force can place unnecessary stress on the tendons and
muscles in your hands, wrists, and forearms.
• If you are using a scrolling mouse, be sure to keep your fingers and hand in a
relaxed, neutral position when activating the scroll wheel. Also, this type of
mouse features software that can minimize the number of mouse movements or
button clicks.
• When using a mouse, trackball, or other input device, position it as close to the
keyboard as possible, and keep it at the same level so you do not have to
stretch while using it.
• Be sure to keep your mouse and trackball clean. Regular removal of
accumulated dust and dirt helps ensure proper tracking and reduces
unnecessary hand and wrist motions.
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