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Symptoms & Solutions
> Neck tension, tightness in upper back and shoulder.
> Hand, wrist and lower arm discomfort.
> Buttock discomfort.
> Thigh discomfort.
> Lower leg/foot discomfort.
> Lower back pain/discomfort.
> Eye Strain.


Neck tension, tightness in upper back and shoulder.

Probable Cause

Solution

Head is too far forward (down) during reading, writing or viewing the VDT screen.

Elevate worksurface, reading materials, and VDT screen so as to keep the head and trunk relationship more vertical.

Hands and arms not supported while typing, inputting data or writing.

Use arm rest, palm rest or worksurface to counter-balance and support the weight of the hands and arms.

Head is bent too far back during reading, writing or viewing the VDT screen.

Tilt the seat and backrest forward so as to keep the head and trunk relationship more vertical. Lower the monitor. For bifocal lens users, consider computer glasses.

Monitor is too far away. Leaning forward to view the screen.

Move the monitor closer. Use larger font size. Check vision prescription.Banana Board, 2180S

The monitor is not inline with the keyboard and your body. Neck is twisted to view the monitor

Reposition the monitor. The monitor and keyboard should be inline with your body.

Head and neck are tilted in a lateral direction. Holding the telephone between the shoulder and ear. Telephone is not inline with your body.

Use a headset or speakerphone. Make sure you face the speakerphone and you are close enough to the phone that you do not lean forward or twist your neck while using the speakerphone.

Raised/hunched shoulders. Desk/keyboard is too high. Armrests are too high

Lower the work surface or raise the chair. Keyboard should be lower than the elbow height. Lower the chair armrests. Raise the chair if foot contact with the floor can be maintained or use footrest.

Mouse/phone/keyboard too far away

Move the mouse closer to the keyboard to maintain a neutral arm posture. Move the phone closer. Sit closer to the keyboard and the mouse

Maintain a static posture for a prolonged period

Frequent short breaks and stretch exercises. Change work activities.


Hand, wrist and lower arm discomfort.

Probable Cause

Solution

Wrists bent to the sides when using side keys.

Change work habits, move your arms and hands when keying of mousing not your wrists. Consider split keyboard.

Wrist bent backward or forward for prolonged periods.

Change work habits. Lower, raise or change slope of the keyboard. Use a wrist rest.

Wrist bent back while mousing.

Change work habits. Consider other input devices. Alternate the use of the mouse and shortcut keys.

Tight grip on pen and heavy writing.

Move the monitor closer. Use larger font size. Check vision prescription.Banana Board, 2180S

Excessive application of force to keys.

Reduce excessive force through training and practice.

Elbows/wrists bent while sleeping.

Change sleeping posture. Check with your doctor about using a wrist or elbow splint during sleeping.

Elbow rests on hard work surface or chair armrests for a prolonged period.

Pad the surface and armrests. Change work habits. Use telephone headset.

Prolonged bent elbow while holding the phone.

Use headset or speakerphone.

Maintain static posture for a prolonged period.

Change posture frequently. Relax your hand on your lap when not mousing or keying. Stretch and flex exercises


Buttock discomfort.

Probable Cause

Solution

Sitting too far forward in the seat pan and not using the backrest.

Sit deeper in the chair. Adjust the seat pan depth. The seat pan should support the thighs.

Increased pressure on the buttocks. Knee is higher than the hip.

Raise the chair. Raise work surface. Knee height should be below the hip.


Thigh discomfort.

Probable Cause

Solution

Too much pressure on the thigh because chair is too high and legs are dangling.

Lower chair. Lower work surface. Adjust the seat pan to forward tilt. Use footrest.

Too much pressure on soft tissue behind the knee from the seat pan.

Raise the chair. Raise work surface. Knee height should be below the hip.


Lower leg/foot discomfort.

Probable Cause

Solution

Circulation is restricted to lower leg and feet, putting pressure on the nerves to the lower legs and feet.

Sit with legs forward, the leg and knee angle should be over 90 degrees. Adjust the chair height.

Feet not supported on floor.

Lower chair and/or work surface. Use a footrest.


Lower back pain/discomfort.

Probable Cause

Solution

Lumbar curvature is not being maintained and supported.

Adjust the backrest to support the natural inward curve of the lower back. Backrest should be placed just slightly above the pelvis and provide support in the lumbar region (lower back).

Major thigh muscle is pulling on the spine because feet are dangling or unsupported.

Lower chair and/or use a foot rest.

Increased disc pressure because of vertebrae not having equal disc spacing. This results in stretching of the muscle, tendon and ligament system.

Open up trunk/thigh angle towards the neutral posture position. Adjust the seat pan to forward tilt or sit with the back slightly reclined. The angle between the trunk and the thigh should be over 90 degrees (~100-110 degrees). If you are sitting in a reclined position, make sure your neck is not sticking out.

Prolonged seated position.

Change position frequently. Alternate between sitting and standing. Take small walking breaks.


Eye Strain.

Probable Cause

Solution

Glare

Reposition the monitor: the monitor should be parallel to the light source (window, overhead lighting). Decrease overall background lighting. Use an antiglare screen. Tilt the monitor. Change the color of the monitor screen: usually it is easier for your eyes with dark text on light background.

Monitor image poor. Screen flickering.

Adjust the monitor brightness and contrast settings to display characters clearly. Check the refresh rate (Following the manufacturer's guideline, usually it should be 75 Hz or greater).

Cannot see clearly, font size too small

Increase the font size. Move monitor closer. Consider larger monitor.

Eyeglass prescription too weak or too strong

Change eyeglass prescription. Eyes should be examined annually.

Prolonged viewing of short distances

Look at far distances (>20 feet) every 20 minutes to relax the eyes.



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