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Ergonomic Solution for musculoskeletal problems By Ahmed El- Nahry Phd,Cairo university

Ergonomic Solution for musculoskeletal problems By Ahmed El- Nahry Phd,Cairo university Physiotherapy Researcher NRC. ( لَقَدْ خَلَقْنَا الْإِنسَانَ فِي أَحْسَنِ تَقْوِيمٍ). اذا اشتكي منه عضو تداع ى له سائر الجسد بالسهر والحمي. Objectives. Define ergonomics and MSD.

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Ergonomic Solution for musculoskeletal problems By Ahmed El- Nahry Phd,Cairo university

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  1. Ergonomic Solution for musculoskeletal problems By Ahmed El-Nahry Phd,Cairo university Physiotherapy Researcher NRC

  2. ( لَقَدْ خَلَقْنَا الْإِنسَانَ فِي أَحْسَنِ تَقْوِيمٍ)

  3. اذا اشتكي منه عضو تداعىله سائر الجسد بالسهر والحمي

  4. Objectives • Define ergonomics and MSD. • Identify ergonomic risk factors. • Recognize MSD symptoms. • Set up your workstation to minimize stress and strain. • Perform tasks safely and avoid musculoskeletal injuries and illness.

  5. Shoulder crossed syndrome

  6. Componat of assessment

  7. cogwheel postural mechanism

  8. Examples • Spine –Phrenic nerve--Vagus

  9. Effect of forward head posture

  10. Intradiscalpressure with the different positions of the body:

  11. ERGONOMICS Ergos = work Nomos = laws Ergonomics = the laws of work

  12. نحن نشكل مساكننا ثم تشكلنامساكننا ونستون تشرشل

  13. What Does Ergonomics Mean? • Designingjobs, equipment, and work tasks to fit human physical characteristics and energy limitations • “Make the work fit the person, not the person fit the work”

  14. WHY USE ERGONOMICS? • Lack of consideration of Ergonomics in the design of workplaces and jobs can result in: • injuries and illness. • fatigue and discomfort. • inefficient working practices. • poor quality of work and errors. • equipment which is awkward and uncomfortable to use. • lost time and poor morale. • All of the above have a direct effect on the cost of doing business.

  15. Health and Safety Executive

  16. Prevention better than cure • قاعدة الجهد الذي نبذله في تأمين احتياجاتنا يوفر لنا نوعا من الحماية ضد التأكل الداخلي

  17. Benefits of Ergonomics Include: • Safer jobs with fewer injuries • Increased efficiency and productivity • Improved quality and fewer errors • Improved morale

  18. Ergonomic Goals: • Finding ways to make strenuous, often repetitive work, less likely to cause muscle and joint injuries -- and still get the job done.

  19. Keeping young bodies from wearing out prematurely, and mature bodies from givingout early.

  20. Working posture Poor working posture is a common ergonomic hazard in workplaces.

  21. Examples of poor working posture include: • Stooping • Reaching / outstretched arms • Twisting • Fixed / static postures in situations where the individual has little or no opportunity to influence or vary their posture

  22. Stooping bending down over work bench work surface being too low

  23. Head bowed down & neck flexed

  24. Neck Bent Forward More than 30º For more than 2 hours per day

  25. Reaching Outstretched arms

  26. Lack of legroom Sit away from the bench and reach forward

  27. Twisting The hips and shoulders are out of line with each other and the spine is rotated.

  28. Fixed/static postures Little opportunity to influence or vary working posture

  29. Highly Repetitive Motion Intensive keying for more than 4 hours per day

  30. JOB ANALYSIS Crawded

  31. تشير الدراسات ان الاهتمام بالبيئة المحيطة بالانسان يشعره بالطمأنينة والارتياح ويزيد من انتاجيته

  32. Working with the Hands Above Head For more than 2 hours per day

  33. Spinal overloading and lower limb overstretched

  34. Sonography procedures and the range of awkward postures involved.

  35. Biosafety Cabinets Cryostats Microscopy Micro- manipulation Eye Strain OTHER ERGONOMIC RISKS INTHE LABORATORY

  36. Working posture - When is there a risk? • Repetition • Duration • Force

  37. CUMULATIVE TRAUMA DISORDERS (CTDs) Synonymous Terms Work-related Musculoskeletal Disorders (WRMSD) Repetitive Motion Injuries (RMI) Repetitive Strain Injury (RSI) • Injuries that occur over a period of time • Disorders of the muscle-tendon, nerves or vascular system

  38. ERGONOMICS What Are Examples of WMSDs?

  39. SYMPTOMS OF CTDs • Tingling sensation • Decreased mobility of Joint (ROM) • Decreased hand strength • Dull, aching discomfort or pain

  40. CTD RISK FACTORS • Poor condition • Improper placement • Incorrect use • Incorrectly installed/sized/adjusted • Manual rather than powered equipment for large tasks

  41. Repetition - Repeated performance of tasks in a time period that not allowing for full physical recovery. Examples: • Pipetting • Microscopy • Cryostat

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