ارجنومكس Ergonomics

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ارجنومكس
Ergonomics

ارجنومكس Ergonomics

  1. 1. Ergonomics
  2. 2. What Is Ergonomics * Ergonomics is the science of fitting the job to the worker. When there is a mismatch between the physical requirements of the job and the physical capacity of the worker, work-related musculoskeletal disorders (WMSDs) can result.
  3. 3. Unsafe Situations • • • • • • • Repetitive tasks Improper posture Improper lifting Poor tool design Poor lighting and glare Noise Temperature extremes.
  4. 4. Twelve Principles Of Ergonomics • • • • • • 1- Keep everyting in easy reach 2- Work at proper heights 3- Reduce excessive force 4- Work in good postures 5- Reduce excessive repetition 6- Minimize fatigue
  5. 5. Continued • • • • • • 7- Minimize direct pressure 8- Provide adjustability and change posture 9- Provide clearance and access 10- Maintain a comfortable environment 11- Enhance clarity and understanding 12- Improve work organization
  6. 6. 1- Keep Everything in Easy Reach • Keep products, parts, and tools that are frequently needed within easy reach. • Long reaches often cause you to twist, bend, and strain which in turn makes work more difficult.
  7. 7. Easy Reach
  8. 8. Work At Proper Heights • A common workplace problem is a mismatch in heights between employees and the work that they are doing. • This leads to a poor postures and unnecessary work.
  9. 9. Proper Heights
  10. 10. 3- Reduce Excessive Forces • Excessive forces load the muscles, creating a potential for fatigue and injury. • Power grips are less stressful than pinch grip. • Use tool grips that are neither too wide nor too small.
  11. 11. Reduce Excessive Forces
  12. 12. Reduce Excessive Forces
  13. 13. 4- Work In Good Posture • Use tools, equipment, and workstation layouts that allow you to work in the best possible posture. • Good posture reduces the stress on your body and makes it easier for doing the job.
  14. 14. Work In Good Posture
  15. 15. 5- Reduce Excessive Repetition • Minimizing the number of motions required to do a task reduce the wear and tear on your body. • Allow machines to do repetition for you.
  16. 16. Reduce Excessive Repetition
  17. 17. 6- Minimize Fatigue • Overloading your physical and mental capabilities can contribute to injuries, accidents, poor quality • Good design of your jobs can help prevent undesirable fatigue.
  18. 18. 7- Minimize Direct Pressure • Direct pressure is uncomfortable. • It can inhibit nerve function and blood flow. • It commonly affects : • Palm of the hands • Forearms • Thighs
  19. 19. Minimize Direct Pressure
  20. 20. 8- Provide Adjustability and Change of Posture • Adjustability makes it easier to customize your workstation to fit your needs. • Maintain better heights and reaches and to avoid pressure points and awkward postures.
  21. 21. Continued
  22. 22. 9- Provide Clearance and Access • It is important that you have both adequate workspace and easy access to everything you need. • Clearance is needed for your: Head, Arms, Feet, Knees, Torso.
  23. 23. Clearance and Access
  24. 24. 10- Maintain a Comfortable Environment • Seek to create surrounding conditions that enhance your ability to get the job done. • Appropriate Lighting • Avoid Temperature Extremes • Isolate Vibration
  25. 25. Comfortable Environment
  26. 26. 11- Enhance Clarity and Understanding • Mistakes and errors may result from poor design of the displays and controls you use. • The configuration and layout of these displays and controls can enhance or hinder your performance.
  27. 27. 12- Improve Work Organization • Improvements can be made in the system which your work is organized. • Plan, Be involved, Communicate, Enlarge jobs, Be part of the team, Be considerate.
  28. 28. Cumulative Trauma • One of the important goals of ergonomics is to prevent a type of disorder called “cumulative Trauma” • Wear and tear on the tissue surrounding your joints.
  29. 29. Symptoms of CTD • • • • • • • Limited range of motion Stillness in joints Numbness or tingling sensations Popping and cracking in the joints Redness, swelling, and local skin warmth Weakness and clumsiness “Burning” sensations
  30. 30. Risk Factors • • • • • • Repetition Force Awkward Postures Direct Pressure Vibration Temperature Extremes
  31. 31. Carpal Tunnel Syndrome
  32. 32. Good Posture
  33. 33. Work Station
  34. 34. Erg
  35. 35. erg
  36. 36. Seated – Work Range
  37. 37. When Getting Something From the Ground

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