In many cases symptoms experienced in the fingers are actully the result of problems in other areas of the body, such as the neck, shoulder, elbow or wrist. Problems in these areas, most notably problems that affect the nerves that run through these areas, can cause significant discomfort in the hand and fingers.
While finger pain and discomfort is frequently a sign of a problem, other symptoms may also appear. Carpal tunnel syndrome, perhaps the best-known repetitive strain syndrome, frequently displays the following symptoms:
- Fingers feel numb
- Fingers tingle or have a "burning" sensation
- Fingers feel "swollen" even though they do not appear swollen
- Fingers have trouble picking up or holding small objects
The following factors may contribute to finger pain and discomfort:
- Repetitive movements of the fingers (such as in keyboarding).
- Prolonged holding and clicking of the mouse.
- Keyboarding habits. Those who have a habit of striking the keyboard hard will have a greater tendency towards finger pain.
- Positioning of your arms while keyboarding.
Vigorous striking of the keys can contribute to finger pain.
Trigger finger, and thumb, is a condition affecting the movement of the tendons as they bend the fingers (flexion) or thumb toward the palm of the hand. The tendons that move the fingers are held in place on the bones by a series of ligaments called pulleys. These ligaments form an arch on top of the bone that creates a sort of tunnel for the tendon to run in along the bone.
To keep the tendons moving smoothly under the ligaments, the tendons are wrapped in a slippery coating called tenosynovium. The tenosynovium reduces the friction and allows the flexor tendons to glide through the tunnel formed by the pulleys as the hand is used to grasp objects.
Causes of Trigger Finger:
- Trigger Finger is usually the result of a thickening in the tendon; this creates a nodule. There may also be thickening of the pulley ligament as well.
- The constant irritation from tendon repeatedly sliding through the pulley causes the tendon to swell in this area and create the nodule.
- Rheumatoid arthritis, partial tendon lacerations, repeated trauma from pistol gripped power tools, or long hours grasping a steering wheel can cause Trigger Finger.
- Infection or damage to the synovium also causes a rounded swelling (nodule) to form in the tendon.
Trigger Finger Symptoms:
- The symptoms of Trigger Finger or thumb include pain and a funny clicking sensation when the finger or thumb is bent. The clicking sensation occurs when the nodule moves through the tunnel formed by the pulley ligaments.
- Pain usually occurs when the finger or thumb is bent and straightened.
- Tenderness usually occurs over the area of the nodule - at the bottom of the finger or thumb.
- The finger can getted locked in the flexed "trigger" position (the nodule is too large to pass under the ligament).
Solutions to Consider
Before proceding to change your keyboard and mouse, consider your posture. Making improvements in posture can help you deal with problems in other areas, such as your fingers.
- How are you sitting; what is the height of your desk?
- Do you have to perch on the edge of your chair, or are you slouching?
- Are you twisting your neck to read a document?
- Are you twising your neck to hold the telephone while you type?
- Are you leaning on your desk while you type?
These and other issues should be considered when addressing finger problems.
- Change the hand you are using to operate the mouse, or alternate between hands.
- Contoured or vertical mice do not require you to hold your wrist in full pronation. Both reduce the amount of pronation (although to different degrees). Generally speaking, contoured and vertical mice require less finger strength to grip than a standard mouse.
Hippus Handshoe Mouse Evoluent Vertical Mouse
- The middle finger (third digit) incurs prolonged stress when holding a standard mouse (the mouse is usually held between the thumb and third digit). This stress may aggravate trigger finger or other finger problems. Stationary mice (something you donít have to hold while operating) such as Roller-style mice, trackballs, touchpads, or MouseTrapper mice (which use a "steering" pad operated by a finger) can reduce the stress on the thumb and third finger.
If you are considering a trackball, avoid models that force you to use the thumb to move the ball. Choose a trackball that has the ball centrally located so that it can be manupulated with your fingers or palm. Also consider positioning the mouse in a central location so that it can be operated with either hand.
Contour Design RollerMouse Kensington Orbit Mouse Cirque Smart Cat MouseTrapper
- A mouse operated by a different part of your body, such as a head-operated mouse, may work, although head-operated mice are not for everybody.
- Try to change your typing style to one of light touching. Most keyboards require very little force to activate the keys. If your keyboard requires you to push very hard to actuate a key, the keyboard may need cleaning or it may be time to consider replacing the keyboard.
- Adjustable keyboards that can be separated into two discrete segments allow you to move the two halves of the keyboard to get the optimum pain-free position. How you hold your wrists and forearms can contribute to finger discomfort. Adjustable keyboards provide the flexibility needed to find the most comfortable typing position.
Kinesis Freestyle Kinesis Freestyle + Kensington Slimblade