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New media technologies are constantly evolving in the aim of providing a better societal lifestyle. However, studies have indicated that excessive use of new media, best exemplified by computers and video games, contains a possible risk of gaining various negative impacts on health.

Contents

Repetitive Strain Injury (RSI)


RSI is caused by the degenerative action of reusing the same muscles in similar movements repetitively. One of the most common examples of the causes of RSI is through the excessive punching of the keys on computer keyboards, which causes damage to tendons, nerves and muscles in the fingers, thumbs, wrists, hands, upper arms, elbows, forearms, neck, shoulders, and upper back.

“Warning signs of RSI can appear in the symptoms listed below:

  • Weakness
  • Fatigue
  • Lack of endurance
  • Tingling, numbness or loss of sensation
  • A feeling of heaviness
  • Clumsiness
  • Difficulty opening and closing hands
  • Stiffness
  • Difficulty using hands (turning pages of books or magazines, turning doorknobs or faucets, holding a coffee mug)
  • Reluctance to shake hands
  • Difficulty carrying things or holding bus or subway poles
  • Hands fall asleep
  • Waking up with wrist pain or numb hands, especially during early morning hours
  • Lack of control or co-ordination
  • Cold hands
  • Frequent self-massage
  • Difficulty buttoning clothing or putting on jewelry
  • Tremors
  • Avoidance of activities or sports that were once enjoyable
  • Pain or soreness (RSI is not always painful, though)�?

(Levine, 2005).


“Listed below are the ten ways to prevent RSI:

  1. Cut down on computer use: leave voicemail instead of sending e-mail. Go for a walk or see a movie instead of playing video games. Look something up in a book instead of searching the Web. You are in the danger zone for injury if you use a computer for as little as two hours a day.
  2. Adjust your workstation properly. Make sure your monitor is directly in front of you, with the top of the screen at eye level. Be sure your keyboard and mouse are low enough to allow you to relax your shoulders.
  3. Sit up straight. Make sure your chair supports your spine in an erect position.
  4. Practice proper technique: never rest your wrists on the desk, wrist pad or armrests while you are typing or using a mouse or trackball.
  5. Pace yourself. Take a 5-to-10 minute break every 20 minutes and limit your overall time at the computer.
  6. Get regular cardiovascular exercise.
  7. Do appropriate upper-body strengthening and stretching exercises.
  8. Stretch frequently while at the computer.
  9. Do not work at the computer or other hand-intensive activities if you are experiencing pain, fatigue or soreness.
  10. Avoid using the mouse and trackball whenever possible. Use keystrokes instead�?

(Quilter, 1998).

Glaucoma


Studies have shown that over 50 percent of heavy computer users experience eyestrain, blurred and/or double vision, amongst other visual symptoms. This, in turn, has the potential to lead to a possible risk of glaucoma. Glaucoma is a type of eye disease that causes damage to the optic nerve and could lead to blindness if not treated (Grossman, 2005).

Preventions and Treatments

The risk of gaining glaucoma can be reduced through correcting the conditions of workplace, remaining in proper posture, attaching stress-relieving lenses or special anti-glare screens prescribed for computer operation, adjusting nutritional supplementation and conducting eye exercises (Grossman, 2005).

Epileptic Seizures


Epileptic Seizures are primarily caused by a specific form of epilepsy, photosensitive epilepsy, when the child is oversensitive to flickering lights. This can be triggered by the bright lights of computers and the flashing of computer games. Symptoms vary but can include headaches and changes in the field of vision, dizziness, confusion, reduced awareness, and seizures. Symptoms disappear as soon as child ceases using the computer (Valkenburg, 2004).

Obesity


Children who spend an excessive amount of time in front of computers are likely to be displacing activities required for healthy development (such as organised sport) and increasing their risk of Obesity (Shields & Behrman, 2000). In the United States, 25% of children are overweight or obese (Subrahmanyam, Kraut, Greenfield & Gross, 2000). It is believed that increasing amounts of time in front of screens (television and computers) is a key factor in causing this.

Further Information


See Also

References

Calvert, S., Jordan, A., & Cocking, R. (2002). Children in the Digital Age: Influences of Electronic Media on Development. Westport: Praeger Publishers, ISBN 0275976521

Grossman, M. (2005). "Computer Eye Strain: How to Relieve it," Vision Work retrieved August 7, 2005, from http://www.visionworksusa.com/computereyestrain.htm#work

Levine, J. (2005). "Computer-Related Health Problems," AskMen.com retrieved August 6, 2005, from http://www.askmen.com/sports/health/36_mens_health.html

Quitter, D. (1998). “TEN WAYS TO PREVENT REPETITIVE STRAIN INJURY,�? Deborah Quilter’s www.RSIHelp.com retrieved October 2, 2005, from http://www.rsihelp.com/tips.shtml

Shields, M., & Behrman, R. (2000). Children and Computer Technology: Analysis and Recommendations. The Future of Children Children and Computer Technology, 10 (2). Retrieved September 8, 2004, from http://www.futureofchildren.org/usr_doc/vol10no2Art1.pdf

Subrahmanyam, K., Kraut, R., Greenfield, P., & Gross, E. (2000). The Impact of Home Computer Use on Children’s Activities and Development. The Future of Children Children and Computer Technology, 10 (2). Retrieved September 8, 2004, from http://www.futureofchildren.org/usr_doc/vol10no2Art6.pdf

Valkenburg, P. (2004). Children’s Responses to the Screen: A Media Psychological Approach. New Jersey: Lawrence Erlbaum Associates, ISBN 0805847642

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Contributors

Kelly Mothershaw 16:16, 28 Oct 2004 (EST)
Ryuya Kina 16:29, 26 Oct 2005 (EST)

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