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Additional factors

D1. Breaks

Determine the maximum amount of time that workers perform the repetitive task without a break. This information should have been recorded on the task description form and drawing a timeline can sometimes help.

Breaks are significant changes or pauses in arm or hand activity (eg of at least 5 – 10 minutes). They include:

  • Structured breaks, such as meal breaks or other official breaks
  • Pauses in production, such as during a product change over
  • Time spent performing other tasks that do not involve repetitive arm movements (eg a visual inspection task or administration task).

Then select the most appropriate category.

The worker performs the task continuously, without a break, for:

D1. Breaks score table

The score of Green is also appropriate where frequent short breaks are designed into the task (eg there is at least 10 seconds of break every few minutes during the whole work period).

D2. Work pace

Speak to the workers about any difficulties they might have keeping up with the work. Select the most appropriate category.

D2. Work pace score table

If the score is Amber or Red, ask workers for more information about this aspect of the work. When do they find it difficult to keep up? Why do they find it difficult to keep up with the work? How could the task be improved?

This is often a good opportunity to speak to workers about how they perceive other aspects of the work, such as other psychosocial factors (see D5).

D3. Other factors

The following factors are defined as 'other factors', because they may not be relevant to every repetitive task. However, if present, these factors are important to identify, as they can present workers with significant problems. For example:

  • Gloves affect gripping and make the handling task more difficult
  • A tool (eg hammer, pick) is used to strike two or more times per minute
  • The hand is used as a tool (eg hammer) and struck ten or more times per hour
  • The tools, work piece or workstation cause compressions of the skin
  • The tools or work piece cause discomfort or cramping of the hand or fingers
  • The hand / arm is exposed to vibration
  • Task requires fine precise movements of the hand or fingers
  • Operators are exposed to cold or draughts or grip cold tools
  • Lighting levels are inadequate

For 'Other Factors' it is simply a case of counting how many are present and scoring appropriately:

Select the most appropriate category. Assess both the left (L) and the right (R) arm.

D3. Other factors score table

D4. Duration

Determine the amount of time that a worker performs the repetitive task in a typical day or shift (excluding breaks). This information should have been recorded on the task description form.

Then select the most appropriate category.

D4. Duration score table

Where workers do not work a fixed shift, they may not know exactly how long they perform the task in a day. However, they should be able to provide enough information to select a category.

D5. Psychosocial factors

Psychosocial factors are not given a score. However, they should be considered and, if present in the workplace, recorded on the score sheet. Psychosocial factors include things such as:

  • Little control over how the work is done
  • Incentives to skip breaks or finish early
  • Monotonous work
  • High levels of attention and concentration
  • Frequent tight deadlines
  • Lack of support from supervisors or co-workers
  • Excessive work demands
  • Insufficient training to do the job successfully

Link URLs in this page

  1. MSDshttps://www.hse.gov.uk/MSd/msds.htm
  2. Back painhttps://www.hse.gov.uk/MSd/backpain/index.htm
  3. Upper limb disordershttps://www.hse.gov.uk/MSd/uld/index.htm
  4. Lower limb disorders https://www.hse.gov.uk/MSd/lld/index.htm
  5. Display screen equipment (DSE)https://www.hse.gov.uk/MSd/dse/index.htm
  6. Manual handling at workhttps://www.hse.gov.uk/MSd/manual-handling/index.htm
  7. Overview - MSD toolkithttps://www.hse.gov.uk/MSd/toolkit.htm
  8. Overview - MAC toolhttps://www.hse.gov.uk/MSd/mac/index.htm
  9. Introduction to MAChttps://www.hse.gov.uk/MSd/mac/introduction.htm
  10. Developmenthttps://www.hse.gov.uk/MSd/mac/development.htm
  11. Score sheethttps://www.hse.gov.uk/MSd/mac/scoresheet.htm
  12. Overview - Liftinghttps://www.hse.gov.uk/MSd/mac/liftintro.htm
  13. Lifting from pallet videohttps://www.hse.gov.uk/MSd/mac/liftvid1.htm
  14. Lifting creels of wire videohttps://www.hse.gov.uk/MSd/mac/liftvid2.htm
  15. Lifting control measureshttps://www.hse.gov.uk/MSd/mac/guidance01a.htm
  16. Overview - Carryinghttps://www.hse.gov.uk/MSd/mac/carryintro.htm
  17. Carrying from conveyor videohttps://www.hse.gov.uk/MSd/mac/carryvid1.htm
  18. Carrying task in pastry factory videohttps://www.hse.gov.uk/MSd/mac/carryvid2.htm
  19. Carrying control measureshttps://www.hse.gov.uk/MSd/mac/guidance02a.htm
  20. Overview - Team handlinghttps://www.hse.gov.uk/MSd/mac/teamintro.htm
  21. Team handling pallet videohttps://www.hse.gov.uk/MSd/mac/teamvid1.htm
  22. Team handling container videohttps://www.hse.gov.uk/MSd/mac/teamvid2.htm
  23. Team handling control measureshttps://www.hse.gov.uk/MSd/mac/guidance03a.htm
  24. Psychosocial risk factorshttps://www.hse.gov.uk/MSd/mac/psychosocial.htm
  25. Individual differenceshttps://www.hse.gov.uk/MSd/mac/individuals.htm
  26. MAC assessment tipshttps://www.hse.gov.uk/MSd/mac/tips.htm
  27. MAC FAQhttps://www.hse.gov.uk/MSd/mac/faq.htm
  28. Overview - V-MAChttps://www.hse.gov.uk/MSd/mac/vmac/index.htm
  29. Advantages and limitationshttps://www.hse.gov.uk/MSd/mac/vmac/1-advantages-limitations.htm
  30. What you need to knowhttps://www.hse.gov.uk/MSd/mac/vmac/2-what-you-need-to-know-before.htm
  31. How to use the V-MAChttps://www.hse.gov.uk/MSd/mac/vmac/3-how-to-use.htm
  32. Which jobs and workers to assesshttps://www.hse.gov.uk/MSd/mac/vmac/4-which-jobs-workers-to-assess.htm
  33. Entering datahttps://www.hse.gov.uk/MSd/mac/vmac/5-entering-data.htm
  34. What does the V-MAC tell you?https://www.hse.gov.uk/MSd/mac/vmac/6-what-does-vmac-tell-you.htm
  35. Values in the summary tablehttps://www.hse.gov.uk/MSd/mac/vmac/7-summary-tables.htm
  36. Recording and usinghttps://www.hse.gov.uk/MSd/mac/vmac/8-recording-and-using.htm
  37. Worked exampleshttps://www.hse.gov.uk/MSd/mac/vmac/9-worked-examples.htm
  38. V-MAC FAQshttps://www.hse.gov.uk/MSd/mac/vmac/10-faqs.htm
  39. Overview - ART toolhttps://www.hse.gov.uk/MSd/uld/art/index.htm
  40. What is the ART toolhttps://www.hse.gov.uk/MSd/uld/art/whatis.htm
  41. Overview - Learning to use the ART toolhttps://www.hse.gov.uk/MSd/uld/art/learning.htm
  42. Preparationhttps://www.hse.gov.uk/MSd/uld/art/preparation.htm
  43. Risk factorshttps://www.hse.gov.uk/MSd/uld/art/riskfactors.htm
  44. Observationhttps://www.hse.gov.uk/MSd/uld/art/observation.htm
  45. Overview - Making an assessmenthttps://www.hse.gov.uk/MSd/uld/art/assessment.htm
  46. Task descriptionshttps://www.hse.gov.uk/MSd/uld/art/task.htm
  47. Overview - Assessment guidehttps://www.hse.gov.uk/MSd/uld/art/assessguide.htm
  48. A. Frequency and repetition of movementshttps://www.hse.gov.uk/MSd/uld/art/freqrep.htm
  49. B. Forcehttps://www.hse.gov.uk/MSd/uld/art/forceassessment.htm
  50. C. Awkward postureshttps://www.hse.gov.uk/MSd/uld/art/awkpostures.htm
  51. D. Additional factorshttps://www.hse.gov.uk/MSd/uld/art/addfactors.htm
  52. Score sheethttps://www.hse.gov.uk/MSd/uld/art/score.htm
  53. A walkthroughhttps://www.hse.gov.uk/MSd/uld/art/walkthrough.htm
  54. Overview - Try it outhttps://www.hse.gov.uk/MSd/uld/art/try.htm
  55. Book bindinghttps://www.hse.gov.uk/MSd/uld/art/bookbinding.htm
  56. Jogging sheetshttps://www.hse.gov.uk/MSd/uld/art/jogging.htm
  57. Collating papershttps://www.hse.gov.uk/MSd/uld/art/papers.htm
  58. Whisky carton assemblyhttps://www.hse.gov.uk/MSd/uld/art/cartonassembly.htm
  59. Croissant curlinghttps://www.hse.gov.uk/MSd/uld/art/croissant.htm
  60. Overview - Analysis and actionshttps://www.hse.gov.uk/MSd/uld/art/analysis.htm
  61. What the scores meanhttps://www.hse.gov.uk/MSd/uld/art/scoresmean.htm
  62. Analysing task rotationhttps://www.hse.gov.uk/MSd/uld/art/rotation.htm
  63. Overview - Taking actionhttps://www.hse.gov.uk/MSd/uld/art/action.htm
  64. Repetitionhttps://www.hse.gov.uk/MSd/uld/art/repetition.htm
  65. Forcehttps://www.hse.gov.uk/MSd/uld/art/force.htm
  66. Posturehttps://www.hse.gov.uk/MSd/uld/art/posture.htm
  67. Durationhttps://www.hse.gov.uk/MSd/uld/art/duration.htm
  68. Physical environmenthttps://www.hse.gov.uk/MSd/uld/art/environment.htm
  69. Psychosocial issueshttps://www.hse.gov.uk/MSd/uld/art/psychosocial.htm
  70. Art Tool Resourceshttps://www.hse.gov.uk/MSd/uld/art/resources.htm
  71. Frequently asked questionshttps://www.hse.gov.uk/MSd/uld/art/faq.htm
  72. Overview - RAPP toolhttps://www.hse.gov.uk/MSd/pushpull/index.htm
  73. Push/pull riskshttps://www.hse.gov.uk/MSd/pushpull/risks.htm
  74. Push/pull risk assessmenthttps://www.hse.gov.uk/MSd/pushpull/assessment.htm
  75. The lawhttps://www.hse.gov.uk/MSd/legislation.htm
  76. Health monitoringhttps://www.hse.gov.uk/MSd/health-monitoring.htm
  77. Workershttps://www.hse.gov.uk/MSd/workers-msds.htm
  78. Resourceshttps://www.hse.gov.uk/MSd/resources.htm
  79. Upper limb disorders in the workplace https://www.hse.gov.uk/pubns/books/hsg60.htm
  80. Chartered Institute of Ergonomics and Human Factorshttp://www.ergonomics.org.uk/

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Updated: 2021-10-11