Good Habits in using Computer

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Good Habits in using Computer
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Introduction

• Although computers increase our productivity,
  prolonged use of computer cause many health
  problems.
• What would you feel after spending a entire day
  in front of a computer?

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Physical Health Problems

• Physical health problems include
• Painful shoulders
• Eyestrain (Tired eyes)
• Muscle fatigues
• Backs Pain
• Neck Pain
• Repetitive Strain Injury (RSI)

Why do we have physical health problems?
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Eyestrain and headaches

• Cause
• Focusing our eyes at a short distance for a long
  time
• How to avoid?
• Take a 15-minutes break every hour or two.
• Keep the screen brighter than room light.
• Minimize any reflected glare on the screen
• Clean the screen of dust.

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Back and Neck Pain

• Cause
• Bad Posture (Bending Backbone or raising head) in
  operating the computer
• How to avoid?
• Use a chair that is adjustable and has a good
  back support.
• Use a table that is adjustable.
• Use a monitor that is adjustable and keep at, or
  slightly below eye level.

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Repetitive Strain injury (RSI)

• Cause
• Injuries resulting from quick and repetitive work
  (example Typing)
• Result
• Damage to nerves and tendons in the hands
• Pain may be so intense that they cannot open door
  or shake hands.
• May require corrective surgery.

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Repetitive Strain injury (RSI)

• How to avoid?
• Frequently but short rest breaks are needed
• During typing, we should avoid bending of and
  restricting movement of our wrist.

Right
Wrong
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Eye Exercise
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Neck Exercise

• Turn your head slowly to the left for 5
  seconds

• then to the right for 5 seconds.

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Mental Health Problems

• Mental health problems include
• Boredom
• Higher tension
• Extreme anxiety
• Depression
• Anger

Why do we have mental health problems?
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Mental Health Problems

• Tireless of computers
• Human cannot work non-stop like computers
• Stress created
• Computer Monitoring
• Computers are used to monitor the performances of
  computer operators in which computer continuously
  gather and assimilate data on job activities
• Constantly supervised by the boss --gt Stress
  resulted

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Mental Health Problems

• Noise irritants
• Voice input and output
• Impact Printers
• High-frequency squeals produced by cooling fans
  and vibrating parts of the system unit

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Ergonomics

• Ergonomics concerns with the design of machines
  and working environments that are safe,
  comfortable and efficient to use by human.
• Fitting Work to People

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Ergonomic Products
Ergonomic keyboards
Ergonomic mouse
Handrests
Ergonomic computer chairs
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How can ergonomic products help us?

• Ergonomic products consider how our body adapt to
  the working condition and its design tries to fit
  our body well.
• Ergonomic computer products enable us to use the
  computer without fatigue in the long run.
• Ergonomic products are also claimed to minimize
  errors.

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We use it in this way...
Try to guess whats this...
Lets look at another example...
Thats the concept of ergonomics!!
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Workspace design
A good workspace should have

• Comfortable sitting position
• Armrest to provide support
• Chair providing back support
• Clean monitor
• Moderate lighting

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Chair

• support for your lower back
• Your feet rest flat on the floor ? a footrest
• A arm rests chair
• Moving area

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Monitor

• minimize glare and reflections
• slightly below eye level
• brightness of the screen
• cleaning

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Monitor

• Anti-glare screen
• Adjustable monitor stand

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References

• http//www.alphaa.com.tw/products/ergoview/body.ht
  ml
• http//www.pc.ibm.com/ww/healthycomputing/index.ht
  ml
• http//www.distrib.com/ergonomics/tutorial/
• http//www.orosha.org/cergos/
• http//www.geocities.com/athens/Cyprus/2668/Lectur
  e9/Page4.html