Vibration, Oculomanual Coordination & Traumatic Injuries

Details

• Personal Author:
  Armstrong TJ ; Martin, Bernard J.
• Description:
  The overall objective of this study was to emphasize the often ignored or neglected role of movement errors in accidents occurring in vibratory environments. The general hypothesis is that vibration-induced modification of sensory messages, used by the central nervous system to control and regulate sensorimotor activities, contribute to the alteration of both movement accuracy and oculo-manual coordination. The following hypotheses were tested: 1) Involuntary motor activities, such as reflexes, are significantly affected during vibration; 2) Vibration-induced alterations of reflex responses varies with vibration frequency; 3) Involuntary muscle contraction induced by vibration exposure contribute to muscle fatigue; 4) Sensory perception is significantly affected by vibration; 5) Oculo-manual coordination is significantly affected during vibration; 6) Vibration-induced alterations persist after exposure and vary with intensity; 7) Permanent visual control of the upper limbs should compensate to some extent vibration-induced affection of other sensory modalities and contribute to performance improvement; 8) Vibration displacement amplitude should exhibit a high correlation with performance decrement over the 80-200 Hz frequency range, and; 9) Sensorimotor performance should be less affected by high frequency vibration (>200Hz). Withdrawal reflex, tonic vibration reflex, manual reflex, and oculo-manual coordination were studied. Overall, vibration displacement amplitude as low as 0.2mm can produce strong alteration of sensorimotor performances; frequencies about 100 Hz produce the largest effects. Furthermore, visual control of the hand appears to be a necessary condition to limit the vibration-induced degradation of manual tasks but this condition is not sufficient. Finally, dissociation between perception and motor responses suggest that subjective evaluation of vibration-induced discomfort, risk or self assessment of performance during and immediately after vibration exposure should be carefully scrutinized. [Description provided by NIOSH]
• Subjects:
  Eye Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety Sense Organs Vibration
• Keywords:
  Hand-injuries Muscle-tension Musculoskeletal-system Musculoskeletal-system-disorders Reflexes Sensory-motor-system Sensory-perceptual-disorders Sensory-perceptual-processes Traumatic-injuries Vibration-disease Vibration-effects Visual-motor-performance Work-performance Workers

  More +
• Series:
  Grant Final Reports
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Final Grant Report
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OEP - Office of Extramural Programs
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-67
• NIOSHTIC Number:
  nn:20000985
• NTIS Accession Number:
  PB2012-105518
• 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, R01-OH-002967, 1994 Aug; :1-67
• Contact Point Address:
  Center for Ergonomics, Department of Industrial Operations Engineering, The University of Michigan, Ann Arbor, MI 48109-2117
• Federal Fiscal Year:
  1994
• Performing Organization:
  University of Michigan at Ann Arbor, Ann Arbor, MI
• Peer Reviewed:
  False
• Start Date:
  19920501
• Source Full Name:
  National Institute for Occupational Safety and Health
• End Date:
  19941231
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:cbe60de0c3aafb7f1f3513083785b3dbca5946d084633306d4286753d40b4921819bb8612478fd8b6e53845393f3a534089bc09bc41274e4c953009ffb8606d5
• Download URL:
  https://stacks.cdc.gov/view/cdc/217972/cdc_217972_DS1.pdf
• File Type:
  [PDF - 3.46 MB ]