Biomechanics of Trailing Leg Response to Slipping – Evidence of Interlimb and Intralimb Coordination

Details

• Personal Author:
  Cham R ; Moyer BE ; Redfern MS
• Description:
  This gait study characterizes the trailing leg's biomechanical response to slips. Twenty-eight healthy participants divided into two age groups (20-33 years and 55-67 years) were asked to walk in two conditions: a known dry floor and a glycerol-contaminated floor expected to be dry, inducing an unexpected slip of the leading foot at heel contact. Four slip-related trailing leg response strategies were identified, ranging from a minimal disruption of the swing phase to a premature (approximately 50ms after toe off) interruption of the swing phase. Aging effects were minimal. The response of the leading/slipping leg preceded that of the trailing limb. The magnitude of the trailing leg's response was associated with that of the knee in the leading/slipping leg, suggesting interlimb coordination. The corrective moment at the knee of the trailing leg was also correlated with that measured at the hip in the same leg, suggesting intralimb coordination. The specific trailing leg's strategy used in a slip is partially determined by pre-slip walking patterns and early stance slip dynamics. [Description provided by NIOSH]
• Subjects:
  Accidental Falls Accidents Accidents, Occupational Aging Biomechanical Phenomena Environmental Health Ergonomics Occupational Health Occupational Injuries Safety
• Keywords:
  Accident-analysis Age-groups Author Keywords: Slips Biomechanics Coordination Environmental-factors Fall-protection Falls Floors Gait Hind Leg Injuries Occupational-accidents Occupational-health Physical-reactions Physiological-measurements Physiological-response Stepping Surface-properties Trailing Leg Walking-surfaces

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• ISSN:
  0966-6362
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  29
• Issue:
  4
• NIOSHTIC Number:
  nn:20035718
• Citation:
  Gait Posture 2009 Jun; 29(4):565-570
• Contact Point Address:
  R. Cham, Department of Bioengineering, University of Pittsburgh, 3700 O'Hara Street, 740 Benedum Hall, Pittsburgh, PA 15261
• Email:
  chamr@upmc.edu
• Federal Fiscal Year:
  2009
• NORA Priority Area:
  Work Environment and Workforce: Special Populations ; Mining: Oil and Gas Extraction ; Services: Public Safety
• Performing Organization:
  University of Pittsburgh
• Peer Reviewed:
  True
• Start Date:
  20020801
• Source Full Name:
  Gait and Posture
• End Date:
  20110831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:84a0c690b018c3efef04f7e2fa35f5d34d41a1ae5e68f7a2c98c2add699edb4a4e988a64b68cccfb1b5ebd67c5b3be958d239adff955e0945a724eb1f7201cd5
• Download URL:
  https://stacks.cdc.gov/view/cdc/187487/cdc_187487_DS1.pdf
• File Type:
  [PDF - 360.11 KB ]