Human Response to Single and Combined Sinusoidal Vertical Vibration – Revisited

Details

• Personal Author:
  Gant LC ; Wasserman DE ; Wilder DG
• Description:
  In a 1977 study, task performance was shown to decline with exposure to combined vertical vibration, as opposed to single sinusoidal vibration. In the current study, electromyography was used to capture muscle activity of the back during single and combined whole-body vertical vibration to explore this phenomenon. Fourteen, right-handed males were exposed to four vertical vibration conditions (no vibration, 2.5 Hz, 5.0 Hz, and vibration combining 2.5 Hz with 5.0 Hz ) while sitting upright. Subjects performed a four-limb task during testing. The participants were able to respond cyclically to the 2.5 Hz and 5 Hz vibration conditions when encountered independently, but only responded to the 2.5 Hz component of the combined vibration condition. Responding only at 2.5 Hz to a combined signal would allow the energy at 5.0 Hz to be dissipated elsewhere in the body, possibly explaining the performance decrement noted previously. This study has revealed a significant musculoskeletal control system limitation. [Description provided by NIOSH]
• Subjects:
  Men Musculoskeletal System Occupational Health Safety Vibration
• Keywords:
  Author Keywords: Whole-body Vibration Back Pain Body Regions Complex Vibration Electromyography Humans Low Back Pain Muscle Function Musculoskeletal System Performance Physiological Response Task Performance Vibration Effects Vibration Exposure Whole Body Vibration

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• ISSN:
  1461-3484
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Iowa ; Maryland ; OSHA Region 3 ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  21-28
• Volume:
  31
• Issue:
  1
• NIOSHTIC Number:
  nn:20062091
• Citation:
  J Low Freq Noise, Vib Active Control 2012 Mar; 31(1):21-28
• Contact Point Address:
  Donald E. Wasserman, D.E. Wasserman, Inc., 3017 Stoners Ford Way, Frederick, MD 21701
• Email:
  dewasserman@juno.com
• Federal Fiscal Year:
  2012
• Performing Organization:
  University of Iowa
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Journal of Low Frequency Noise, Vibration and Active Control
• End Date:
  20290630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:9a6f7ba893e05e3bc1a9bb426357f390278bb5fc7a154dc5d31b90f6ad234cdf590494b82d74628d96728b9068207681af7483db32e02703a043b597b9350762
• Download URL:
  https://stacks.cdc.gov/view/cdc/225405/cdc_225405_DS1.pdf
• File Type:
  [PDF - 429.45 KB ]