Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Ergonomics

3,913 views

Published on

Published in: Health & Medicine, Technology
  • Be the first to comment

Ergonomics

  1. 1. What is Ergonomics?Ergonomics is the science and practice of designing jobs or workplaces to match the capabilities and limitations of the human body.3 Benefits of ergonomics include: – safer jobs with fewer injuries – increased efficiency and productivity – improved quality and fewer errors – improved morale
  2. 2. What is a Muscularskeletal Disorder?An MSD is a disorderof the muscles,nerves, tendons,ligaments, joints,cartilage, bloodvessels or spinal discs.
  3. 3. WHAT IS A WMSD?Workplace MSD’s are caused byexposure to risk factors:RepetitionForceAwkward PosturesContact StressVibration
  4. 4. “Caution Zone” JobsRequire Action Do you have “caution zone” jobs? No Yes Not covered Two requirements: • No requirements • Awareness education • Evaluate “caution zone” jobs for hazards No hazards present Hazards present • No additional Reduce exposure below requirements the hazard level or AnnualAnnual to the degree feasible review review
  5. 5. Caution Zone What is a “Caution Zone” job?
  6. 6. Look for These Indicators: 3 Awkward PosturesCaution 3 High Hand Force Zone 3 Highly Repetitive Motion 3 Repeated Impact 3 Heavy, Frequent or Awkward Lifting 3 Moderate to High Hand-Arm Vibration
  7. 7. Awkward PosturesBeing in these work positions formore than 2 hours total per day – Hands above head – Elbow above shoulder – Back bent forward more than 30 degrees – Neck bent more than 30 degrees – Squatting – Kneeling
  8. 8. Working with theHands OverheadFor more than 2 hours per day
  9. 9. Neck or Back BentForward More than 30ºFor more than 2 hours per day
  10. 10. Squatting or KneelingFor more than 2 hours per day
  11. 11. High Hand Force3 More than 2 hours per day of: Pinching 2 or Gripping 10 or more pounds more pounds weight or 4 or weight or force more pounds force
  12. 12. Highly Repetitive Motion3 Workers repeat same motion every few seconds for more than 2 hours per day with: – neck – shoulders – elbows – wrists – hands
  13. 13. Highly Repetitive Motion3 Intensive keying for more than 4 hours per day
  14. 14. Repeated Impact3 Using hands or knees as a hammer – more than 10 times per hour – more than 2 hours per day
  15. 15. Heavy, Frequent, or Awkward Lifting3 Lifting objects more than: – 75 lbs. once/day – 55 lbs. more than ten times/day – 10 lbs. more than twice/minute for more than 2 hours per day – 25 lbs. above shoulders, below knees, or at arms length for more than 25 times/day
  16. 16. Moderate to HighHand-Arm VibrationModerate Level High Levelmore than More than2 hours/day 30 Min/day
  17. 17. Analyzing Caution ZoneJobs for Hazards3 Use a systematic method to look at: – physical demands – layout of work area – size, shape, and weight of objects handled3 The results will help to determine controls
  18. 18. Hazard Zone (use Appendix B) 3 Risk factors become hazardous when: – there is a longer duration of exposureShoulders Working with the hand(s) above the More than 4 hours head or the elbow(s) above the total per day shoulder(s)
  19. 19. Hazard Zone (use Appendix B) 3 Risk factors become hazardous when: – there is greater intensityBack Working with the back bent forward More than 4 hours more than 30º (without support, or the ability to vary posture) total per day u Working with the back bent forward More than 2 hours more than 45º (without support or the ability to vary posture) total per day u
  20. 20. Hazard Zone (use Appendix B) 3 Risk factors become hazardous when: – there is a combination of risk factorsArms, Gripping an unsupported object(s) Highly repetitive More than 3wrists,hands weighing 10 or more pounds per hand, or motion hours total per day u gripping with a force of 10 pounds or more per hand (comparable to clamping light duty Flexion automotive jumper More than 3 cables onto a battery) Wrists bent in hours total per flexion 30° or day more, or in extension 45° or Extension u more, or in ulnar deviation 30° or more Ulnar deviation
  21. 21. Ergonomic Solutions Using foot controls instead of standard mice controls
  22. 22. Ergonomic Solutions Lift assist device to eliminate heavy, awkward lifts
  23. 23. Ergonomic Solutions Shoulder harness for landscaping tool to reduce hand forces
  24. 24. Ergonomic SolutionsVoice activated software to eliminate keystrokes
  25. 25. If You Have“Caution Zone” Jobs3 Begin an employee awareness education program3 Analyze your workplace for hazards3 Reduce any hazards you find
  26. 26. Ergonomics AwarenessEducation Should:3 Provide information on all “caution zone” risk factors3 Show the types, symptoms and impacts of WMSDs3 Show the importance of early reporting of symptoms3 Identify the hazards and measures to reduce them3 Teach the requirements of the ergonomics rule
  27. 27. Reducing Identified Hazards3 You need to reduce hazards to below hazard level, or to a degree technologically and economically feasible through: – Engineering and administrative controls (preferred) and/or – Individual work practices and PPE3 Employers are not required to reduce employee hours to comply
  28. 28. Job-Specific Training3 Job-specific training is required only if controls change the job or work practices3 Training must include: – hazards of the work activities – safe work practices – proper use and maintenance of control measures
  29. 29. Employee Involvement3 Your safety committee should be involved in selecting the methods of employee participation3 Involve your employees in: – Analyzing “Caution Zone” Jobs – Selecting hazard control methods – Reviewing ergonomics activities annually3 Results should be shared with your safety committee
  30. 30. Remember: “Caution Zone” JobsRequire Action Do you have “caution zone” jobs? No Yes Not covered Two requirements: • No requirements • Awareness education • Evaluate “caution zone” jobs for hazards No hazards present Hazards present • No additional Reduce exposure below requirements the hazard level or AnnualAnnual to the degree feasible review review
  31. 31. It Costs Less to Be SafeAverage cost of Average cost ofcommon WMSDs*: common controls:Low back: $6,000 Hydraulic lift: $600Shoulder: $7,000 Adjustable height workstation: $800Elbow: $4,000 Powered screwdriver: $100Wrist: $5,500 Assembly work positioner: $75* Source: SHARP Report No. 40-4a-2000

×