Biodynamic Response of Human Fingers in a Power Grip Subjected to a Random Vibration

Details

• Personal Author:
  Dong, Ren G. ; McDowell, Thomas W. ; Welcome DE ; Wu, John Z.
• Description:
  Knowledge of the biodynamic response (BR) of the human hand-arm system is an important part of the foundation for the measurement and assessment of hand-transmitted vibration exposure. This study investigated the BR of human fingers in a power grip subjected to a random vibration. Ten male subjects were used in the experiment. Each subject applied three coupling actions to a simulated tool handle at three different finger grip force levels. The BR is practically independent of the hand coupling actions for frequencies at or above 100 Hz. Above 50 Hz, the BR is correlated to finger and hand sizes. Increasing the finger coupling force significantly increases the BR. Therefore, hand forces should be measured and used when assessing hand-transmitted vibration exposure. The results also show that under a constant-velocity vibration, the finger vibration power absorption at frequencies above 200 Hz is approximately twice that at frequencies below 100 Hz. This suggests that the frequency weighting specified in the current ISO 5349-1 (2001) may underestimate the high frequency effect on vibration-induced finger disorders. [Description provided by NIOSH]
• Subjects:
  Demography Environmental Monitoring Musculoskeletal System Occupational Health Safety Sex Characteristics Vibration
• Keywords:
  Biodynamics Demographic-characteristics Exposure-assessment Hand-injuries Hand-tools Sex-factors Vibration-effects Vibration-exposure
• ISSN:
  0148-0731
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  447-457
• Volume:
  126
• Issue:
  4
• NIOSHTIC Number:
  nn:20025538
• Citation:
  J Biomech Eng 2004 Aug; 126(4):447-457
• Contact Point Address:
  E&CTB/HELD/NIOSH/CDC, 1095 Willowdale Road, MS 2201, Morgantown, WV 26505, USA
• Email:
  rkd6@cdc.gov
• Federal Fiscal Year:
  2004
• NORA Priority Area:
  Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Biomechanical Engineering
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1dd7ad6d6517fe1002092b5c30bef39a0bbfb9a718ec8daf46d5c0cbd006da0abd4727f6e8ce207e1c5209a96f639483ebc5252ba68f9aa315c10b8ef4fe3c93
• Download URL:
  https://stacks.cdc.gov/view/cdc/196861/cdc_196861_DS1.pdf
• File Type:
  [PDF - 1.65 MB ]