Effect of computer mouse design on risk factors for cumulative trauma disorder and on patterns of motor coordination of the forearm and wrist in skilled and novice users.

Details

• Personal Author:
  Barr AE
• Description:
  The common, forearm pronated (FP) computer mouse was compared with a new forearm neutral (FN) computer mouse designed to reduce the risk of cumulative trauma disorders (CTD). Twenty experienced mouse users and 20 novice mouse users participated in evaluations of the two mouse types. Use of the FP mouse was associated with mean forearm pronation up to maximum, high mean wrist ulnar deviation, motions of wrist radial ulnar deviation with intermittent occurrence of maximum ulnar deviation angles, and activation of the pronators and the wrist extensors at intensities between 8% maximum voluntary contraction (MVC) and 35% MVC at least 40% of the time. The FN mouse eliminated the postural and joint motion risk factors and reduced some muscular demands associated with postural risks. The FN mouse did not reduce mean wrist extension and it increased extensors carpi radialis activation to higher intensity levels. The highest speed of performance was attained with the FN mouse. Novice users demonstrated a similar rate of improvement in speed of performance with both mouse designs. Skilled users demonstrated a remarkable degree of skill transfer. The study showed that risk factors for forearm and wrist CTD can be attributed to mouse operation as such. [Description provided by NIOSH]
• Content Notes:
  in NTRL, no pdf
• Subjects:
  Cumulative Trauma Disorders Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  NIOSH-Grant; Musculoskeletal-system-disorders; Humans; Cumulative-trauma-disorders; Muscle-stress; Muscle-function; Task-performance; Repetitive-work
• Series:
  Grant Final Reports
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Final Grant Report
• Place as Subject:
  New York ; OSHA Region 2
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OEP - Office of Extramural Programs
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:00238183
• NTIS Accession Number:
  PB97207153
• Citation:
  Atlanta, GA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, R03-OH-003260, 1997 Jan; :1-359
• Contact Point Address:
  Occ & Industrial Orth Center Hosp for Joint Diseases/oioc 63 Downing Street New York, NY 10014
• Federal Fiscal Year:
  1997
• NORA Priority Area:
  Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
• Performing Organization:
  Hospital for Joint Diseases Ortho Inst, New York, New York
• Peer Reviewed:
  False
• Start Date:
  19940930
• Source Full Name:
  National Institute for Occupational Safety and Health
• End Date:
  19960929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/246335/cdc_246335_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]