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The keyboard and mouse should be located slightly below elbow level and close to the body.
Is the concern with placing the mouse to the side and back of the computer table.How can this position be made more comfortable?
Repetitive mouse use involves activating the same small muscles over and over again.These small muscles can become tired and overworked, resulting in pain, nodules and ganglion cysts around joints and tendons as well as numbness and tingling in the thumb and index finger. Numbness and tingling can
develop into carpal tunnel syndrome over time.
Usually, you use a mouse operate a keyboard as well. Because the keyboard is located in front of the worker and because many workstations have limited space, the mouse is often placed to the side and back of the table. To use the mouse in this location, the worker must extend her arm and hold it there. This position can cause injuries. Using the mouse in this position can be made more comfortable by using a narrower keyboard, enabling the mouse to be close to the keyboard.
Alternative Mouse Positions Another possible position for the mouse is between the user and the keyboard. This can be accomplished by using a keyboard with a touch pad or by placing a separate mouse between the user and the keyboard. A touch pad is a small rectangular pad at the front of the keyboard that works like a mouse. It allows the user to move their finger as though
it was a cursor. While it is not as precise as a mouse, some people find it more comfortable because it reduces the reach necessary to
activate it. Locating a separate mouse between the operator and the keyboard eliminates reaching to the side and allows the worker to adopt a more balanced, centered posture. This can reduce muscle fatigue, discomfort and injuries.
To use the mouse in a neutral position, the keyboard or chair may need to be adjusted. The keyboard should be angled so the wrists remain naturally straight. This may involve moving the keyboard/mouse tray if it is adjustable. If not, then the height of the chair should be adjusted so the keyboard and mouse are slightly below elbow level.
A mouse pad helps to keep the underside of the mouse clean and provides a smooth surface on which it can slide.
Conventional keyboards that slant up force the wrists to flex upward. Adjusting the keyboard tray slightly downward with a negative slope can take pressure off the wrist. A wrist pad made of pressure-absorbent material located just below the keyboard and at the same angle, can help to support the wrists.
the tasks to be performed;
the arrangement of the workstation.
Many chairs are described as “ergonomic” by their
manufacturers, but a chair can be considered ergonomic only
when it suits the worker’s size, the tasks she will perform and
For each major joint (e.g. hips, knees and elbows), there are ranges that each person will
controls are easy to operate from a sitting position;
swivel mechanism and wheels or casters (appropriate to
type of flooring);
stable five-point base;
breathable, non slippery fabric.
wide and long enough to be comfortable (seat
does not put pressure on thighs or knees);
adjustable in angle (to allow forward sloping);
front edge of seat curves toward the floor.
height adjustable (separate from scat pan);
adjustable angle with locking mechanism;
wide enough and high enough to fit back comfortably
curved to fit the shape of your back (some chairs also
have additional lower lumbar – support features).
allow chair to slide under work surface (should be short
enough to allow workers to move their chairs close to the
workstation or easily moved to the side if in the way);
ideally height and width adjustable (should be adjusted to
approximately elbow height to allow arms to rest
comfortably, taking the load off shoulders and neck).
Hello, I am a Toronto-based writer who will be joining Katia’s Creative Studio as a co-author, blogger and editor. I am interested and hope to write about various topics including politics, municipal affairs, transportation issues, education, music, photography, travel, sports, show business and entertainment – including film, television, theatre and comedy. After studying political science and English at Carleton University, I took a two-year journalism program at Algonquin and Sheridan colleges. I have since worked in the journalism field writing and editing for several community newspapers.