U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Relationship Between Age-Related Gait Adaptations and Required Coefficient of Friction



Details

  • Personal Author:
  • Description:
    A laboratory study was conducted to evaluate if age-related gait adaptations in walking velocity, step length and heel contact velocity could adversely influence friction demand characteristics (i.e. RCOF) and the likelihood of slip initiation. Additionally, relationship between transitional acceleration of the whole body center-of-mass (COM) and friction demand was assessed between young and older participants. Fourteen younger (7 females and 7 males, 18-30 years old) and 14 older (7 females and 7 males, over 65 years old) adults participated in the study. While wearing a safety harness, all participants walked at their preferred gait speed for approximately 20 min on the linear walking track, and synchronized ground reaction forces and posture data were captured using the force plates and six infrared cameras, respectively. The results indicated that older adults walked slower with slower heel contact velocity, and produced lower friction demand (i.e. RCOF) in comparison to younger adults. However, ANCOVA indicated that the differences in heel contact velocity between the two age groups were due to effects of walking velocity. The multiple regression and bivariate regression analyses suggested that, for older adults, heel contact velocity was a predictor for the RCOF, whereas, for younger adults, walking velocity, step length and transitional acceleration of the whole body COM were the factors contributing to the RCOF. In conclusion, the present study suggested that gait adaptations among the elderly must be considered when predicting the likelihood of slip initiation [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • ISSN:
    0925-7535
  • Document Type:
    Text
  • Funding:
    Grant
  • Genre:
    Journal Article
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    425-436
  • Volume:
    43
  • Issue:
    7
  • NIOSHTIC Number:
    nn:20031237
  • Citation:
    Saf Sci 2005 Aug; 43(7):425-436
  • Email:
    lockhart@vt.edu
  • Federal Fiscal Year:
    2005
  • Performing Organization:
    Virginia Polytechnic Institute and State University, Blacksburg
  • Peer Reviewed:
    True
  • Start Date:
    20010701
  • Source Full Name:
    Safety Science
  • End Date:
    20260630
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:5d0c3c7db66216f013a4503322c427e569e31cc4e14d21d43e24fc44f560b6e997c9fb2b5054f192cd211d63bb67f18b3ae005509b36c1dd855175887c8e7bfb
  • Download URL:
  • File Type:
    Filetype[PDF - 201.17 KB ]
PREVIOUS
ON THIS PAGE
Details
CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.

As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP