Age-Related Joint Moment Characteristics During Normal Gait and Successful Reactive-Recovery from Unexpected Slip Perturbations

Details

• Personal Author:
  Liu J ; Lockhart TE ; Liu J ; Lockhart TE
• Description:
  The objective of the current study was to investigate the effects of aging on 3D lower extremity joint moments during successful reactive-recovery from unexpected slips. Unexpected slips were induced by having participants walk over a slippery floor surface. Successful reactive-recovery trials from nine young and nine elderly participants were identified and analyzed. Three-dimensional inverse dynamics were implemented to calculate reactive joint moments at the ankle, knee, and hip joints. Peak joint moment magnitude and the speed of peak joint moment generation were used to describe the balance recovery strategies from unexpected slips. Results indicated significantly higher peak joint moments in recovery than in normal walking for both the young and elderly. Meanwhile, during reactive-recovery, the elderly were found to utilize both frontal and sagittal joint moments while the younger adults relied primarily on sagittal joint moment. It was concluded that the ankle and knee joints were critical in controlling sagittal plane motion disturbance, while the hip joint was mainly responsible for stabilizing upper body balance in the frontal plane. This study confirmed age-related differences in joint moment generation during unexpected slips. Additionally, implementing 3D analysis is recommended in future slips and falls research. [Description provided by NIOSH]
• Subjects:
  Accidental Falls Accidents Age Factors Aging Biomechanical Phenomena Ergonomics Musculoskeletal System Occupational Health Safety
• Keywords:
  Age-factors Age-groups Author Keywords: Slips And Falls Biomechanics Falls Inverse Dynamics Joint Moment Kinetics Locomotion Models Motion-studies Musculoskeletal-system Physiology Posture

  More +
• ISSN:
  0966-6362
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article ; Journal Article
• Place as Subject:
  OSHA Region 3 ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH) ; National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health ; Workplace Safety & Health
• Location:
  North America ; North America
• Pages in Document:
  276-281
• Volume:
  30
• Issue:
  3
• NIOSHTIC Number:
  nn:20036247
• Citation:
  Gait Posture 2009 Oct; 30(3):276-281
• Contact Point Address:
  Thurmon E. Lockhart, Locomotion Research Laboratory, Grado Department of Industrial and Systems Engineering, Virginia Polytechnic Institute and State University, 250 Durham Hall, Blacksburg, VA, United States
• Email:
  lockhart@vt.edu
• Federal Fiscal Year:
  2010
• NORA Priority Area:
  Work Environment and Workforce: Special Populations ; Work Environment and Workforce: Special Populations
• Performing Organization:
  Virginia Polytechnic Institute and State University
• Peer Reviewed:
  True
• Start Date:
  20010701
• Source Full Name:
  Gait and Posture
• End Date:
  20040630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:e8ba4ffab6d8624964438d144904205f5975fbc16767d0562319d0f11e530b46028a50cedc1dfc51fffa56b51e035b04cf911415c9291ea045527709db8f1768
• Download URL:
  https://stacks.cdc.gov/view/cdc/187739/cdc_187739_DS1.pdf
• File Type:
  [PDF - 425.97 KB ]