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Ergonomics
What is Ergonomics
Ergonomics is the study of
human safety and comfort factors
related to our interaction with, and use of...
The study of ergonomics influences designers to
ensure that designs of
products, process and systems
are comfortable, func...
Good ergonomic design reflects normal
human movement and abilities.
Ergonomic Design
Poor ergonomic design requires people to
adapt to unnatural movement and activity
which may lead to injury.
Ergonomic Desi...
The most common problem of poor ergonomic design in the
workplace is Repetitive Motion Injury (RMI).
Ergonomics and Health...
Ergonomic Design Considerations
Important considerations for ergonomic design include
the following human capabilities:
• ...
Ergonomic Design Considerations
Important considerations for ergonomic design include
the following human capabilities:
Of...
Ergonomic Design and Force
Considerations for ergonomic design:
• Force - The human ability to push, pull and lift
Designe...
• How much do the objects weigh?
• Can heavy loads be made into a few lighter ones?
• Can be safely lifted by one person?
...
General Lifting Principles:
• Lift by bending your legs, not your back.
• Keep the object close to you (close to your cent...
Graphic representation of the correct way to lift a heavy object
Ergonomic Design and Flexibility
Considerations for ergonomic design:
• Flexibility- the human ability to bend, twist and ...
• Select tools that can be used without
bending the wrist.
• Hand tools should allow the operator
to grasp, hold, and use ...
• 5-10 cm below elbow level for precision
work such as reading or writing.
• 10-15 cm below elbow level for light
work suc...
The best ways to prevent an RMI may include:
• Try to use a workstation that is the right height for you.
Working in awkwa...
Summary of rules to prevent
Repetitive Motion Injuries
(RMIs)
Ergonomics and Flexibility
Ergonomic Design Considerations
Considerations for ergonomic design:
• Sight- The human ability and care of sight
Designer...
Sight considerations in ergonomic design include efficiency but are,
above all, required to ensure the safety of a worker’...
Ergonomics and Sight
Ergonomic design for sight in the workplace must include
proper lighting to avoid eye strain over a l...
Ergonomics and Sight
Computer screen glare is a concern for workers working with
computers for many hours each day.
Ergonomics and Sight
Ergonomic design considerations
also focus on line of sight.
Workers must have a clear line of
sight ...
Ergonomic Design Considerations
Important considerations for ergonomic design include
the following human capabilities:
• ...
Ergonomics and Hearing
Ergonomic design considerations include reducing noise in a
work environment. Sound dampening and s...
Ergonomics and Hearing
Ergonomic design of processes must often also
include hearing protection equipment.
Ergonomics and You
Use ergonomic considerations and design in your
daily activities and routines will help prevent RMIs,
l...
Ergonomics and You
Medical terms for Repetitive Motion Injuries (RMIs) that may
result in long term health problems includ...
Ergonomics and You
Always practice good posture.
Ergonomics and You
Always bend your knees and use your legs
to lift heavy objects.
Ergonomics and You
Get up and stretch or move after long periods of
time in a stationary position.
Ergonomics and You
Protect your eyesight and hearing.
Ergonomics and You
Always observe and practice good safety habits and rules.
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ONTAP - Ergonomics

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ONTAP - Ergonomics

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ONTAP - Ergonomics

  1. 1. Ergonomics
  2. 2. What is Ergonomics Ergonomics is the study of human safety and comfort factors related to our interaction with, and use of, products, processes and systems.
  3. 3. The study of ergonomics influences designers to ensure that designs of products, process and systems are comfortable, functional, safe and user friendly. Ergonomic Design
  4. 4. Good ergonomic design reflects normal human movement and abilities. Ergonomic Design
  5. 5. Poor ergonomic design requires people to adapt to unnatural movement and activity which may lead to injury. Ergonomic Design
  6. 6. The most common problem of poor ergonomic design in the workplace is Repetitive Motion Injury (RMI). Ergonomics and Health & Safety. RMIs are injuries are often in aching muscles and joints that can result in long term health problems.
  7. 7. Ergonomic Design Considerations Important considerations for ergonomic design include the following human capabilities: • Force - The human ability to push, pull and lift • Sight- The human ability and care of sight • Hearing- The human ability and care of hearing • Flexibility- the human ability to bend, twist and turn
  8. 8. Ergonomic Design Considerations Important considerations for ergonomic design include the following human capabilities: Of the 4 design considerations, force, flexibility, sight and hearing, force and flexibility are the main focus of ergonomic design as these considerations lead to the most common workplace injuries called Repetitive Motion Injuries (RMIs).
  9. 9. Ergonomic Design and Force Considerations for ergonomic design: • Force - The human ability to push, pull and lift Designers must consider the following workplace demands: • What must be pushed, pulled or lifted, how much will it weigh and how is it to be pushed, pulled or lifted.
  10. 10. • How much do the objects weigh? • Can heavy loads be made into a few lighter ones? • Can be safely lifted by one person? • Is the object too awkward to be lifted and carried alone? • Is there a way to minimize the amount of lifting and carrying (i.e. – is there a device, such as a wheeled cart, to use to carry the object)? Ergonomics and Force The first step in ergonomic design and force is assessing the objects to be lifted: Attempting to lift a heavy object all at once may result in back injury.
  11. 11. General Lifting Principles: • Lift by bending your legs, not your back. • Keep the object close to you (close to your centre of gravity). • Use handles if possible (to get a better grip on the object). • Get assistance if the object is large or awkward (even if it is light). Ergonomics and Force Lifting Heavy Weights
  12. 12. Graphic representation of the correct way to lift a heavy object
  13. 13. Ergonomic Design and Flexibility Considerations for ergonomic design: • Flexibility- the human ability to bend, twist and turn Designers must consider the following workplace demands: • How much bending, twisting and turning is required
  14. 14. • Select tools that can be used without bending the wrist. • Hand tools should allow the operator to grasp, hold, and use the tool with the wrist held straight. Ergonomics and Flexibility Hand tool use can often result in Repetitive Motion Injuries (RMIs) The following rules should be applied to hand tool usage:
  15. 15. • 5-10 cm below elbow level for precision work such as reading or writing. • 10-15 cm below elbow level for light work such as working at a kitchen counter. • 15-40 cm below elbow level for work requiring downward force such as cutting or drilling. Workstations for working in a standing position should be adjusted as follows to avoid RMIs: Ergonomics and Flexibility
  16. 16. The best ways to prevent an RMI may include: • Try to use a workstation that is the right height for you. Working in awkward postures for long periods of time can lead to RMIs. • Try to stretch or go for a walk. Working in the same posture for a long time can also lead to RMIs. • Try to vary the types of movements you do. Use a variety of muscle groups. • Try to use only the amount of force necessary. Applying excessive force repetitively and for long periods of time can cause injury. • Pace your work. Working at a fast pace for a short amount of time may be worse than a slower pace for a longer period of time. • Make sure your body has time to recuperate. Working long hours without taking time to recuperate (rest breaks) can also lead to injury. Ergonomics and Flexibility
  17. 17. Summary of rules to prevent Repetitive Motion Injuries (RMIs) Ergonomics and Flexibility
  18. 18. Ergonomic Design Considerations Considerations for ergonomic design: • Sight- The human ability and care of sight Designers must consider the following workplace demands: • What must be clearly seen, what is the required field of vison and how much light will be required for clear vision.
  19. 19. Sight considerations in ergonomic design include efficiency but are, above all, required to ensure the safety of a worker’s eye sight and the worker’s ability to see and recognize potential safety hazards. Ergonomics and Sight
  20. 20. Ergonomics and Sight Ergonomic design for sight in the workplace must include proper lighting to avoid eye strain over a long period.
  21. 21. Ergonomics and Sight Computer screen glare is a concern for workers working with computers for many hours each day.
  22. 22. Ergonomics and Sight Ergonomic design considerations also focus on line of sight. Workers must have a clear line of sight for safety and efficiency.
  23. 23. Ergonomic Design Considerations Important considerations for ergonomic design include the following human capabilities: • Hearing- The human ability and care of hearing Designers must also consider the following common workplace demands: • What sounds must be heard and what noise must be limited
  24. 24. Ergonomics and Hearing Ergonomic design considerations include reducing noise in a work environment. Sound dampening and sound reducing products may include: • Acoustic ceiling tiles • Carpeted floors • Wall mounted sound absorbing systems
  25. 25. Ergonomics and Hearing Ergonomic design of processes must often also include hearing protection equipment.
  26. 26. Ergonomics and You Use ergonomic considerations and design in your daily activities and routines will help prevent RMIs, long term injury or health problems.
  27. 27. Ergonomics and You Medical terms for Repetitive Motion Injuries (RMIs) that may result in long term health problems include: • Cumulative Trauma Disorders (CTDs) • Carpal tunnel syndrome – injury in the wrist • Bursitis – injury in the “bursa” – a part of the joints • Tendonitis – injury in the tendons These health problems are preventable with good ergonomic practices.
  28. 28. Ergonomics and You Always practice good posture.
  29. 29. Ergonomics and You Always bend your knees and use your legs to lift heavy objects.
  30. 30. Ergonomics and You Get up and stretch or move after long periods of time in a stationary position.
  31. 31. Ergonomics and You Protect your eyesight and hearing.
  32. 32. Ergonomics and You Always observe and practice good safety habits and rules.

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