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Step time variability and pelvis acceleration patterns in younger and older adults: effects of footwear and surface conditions

Journal Article


Abstract


  • This study investigated the effects of various shoe features and surfaces on step time variability and pelvis accelerations (RMS) during walking in six younger and 22 older adults. Participants walked at a self-selected speed in five shoe conditions (standard, elevated heel, soft sole, hard sole, and high collar) on two surfaces: level and irregular. Results showed an age-related reduction in step time variability on the irregular surface and increased medio-lateral (ML) acceleration RMS in older people walking on the

    irregular versus the level surface. When wearing the elevated heel shoes, both young and old participants displayed significant reductions in pelvis ML accelerations, suggesting a compensatory strategy to counteract for lateral instability resulting from heel elevation. Overall, the findings demonstrate that older people are less able than younger ones to meet the stepping adaptability required for negotiating an irregular surface and, as a possible consequence, have more difficulty maintaining frontal plane stability on such a surface.

Authors


  •   Menant, Jasmine C.. (external author)
  •   Steele, Julie R.
  •   Menz, Hylton B.. (external author)
  •   Munro, Bridget J. (external author)
  •   Lord, Stephen R. (external author)

Publication Date


  • 2011

Citation


  • Menant, J. C.., Steele, J. R., Menz, H. B.., Munro, B. J. & Lord, S. R. (2011). Step time variability and pelvis acceleration patterns in younger and older adults: effects of footwear and surface conditions. Research in Sports Medicine, 19 (1), 28-41.

Scopus Eid


  • 2-s2.0-79251476874

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3481

Number Of Pages


  • 13

Start Page


  • 28

End Page


  • 41

Volume


  • 19

Issue


  • 1

Place Of Publication


  • http://pdfserve.informaworld.com/117069_751316856_932526226.pdf

Abstract


  • This study investigated the effects of various shoe features and surfaces on step time variability and pelvis accelerations (RMS) during walking in six younger and 22 older adults. Participants walked at a self-selected speed in five shoe conditions (standard, elevated heel, soft sole, hard sole, and high collar) on two surfaces: level and irregular. Results showed an age-related reduction in step time variability on the irregular surface and increased medio-lateral (ML) acceleration RMS in older people walking on the

    irregular versus the level surface. When wearing the elevated heel shoes, both young and old participants displayed significant reductions in pelvis ML accelerations, suggesting a compensatory strategy to counteract for lateral instability resulting from heel elevation. Overall, the findings demonstrate that older people are less able than younger ones to meet the stepping adaptability required for negotiating an irregular surface and, as a possible consequence, have more difficulty maintaining frontal plane stability on such a surface.

Authors


  •   Menant, Jasmine C.. (external author)
  •   Steele, Julie R.
  •   Menz, Hylton B.. (external author)
  •   Munro, Bridget J. (external author)
  •   Lord, Stephen R. (external author)

Publication Date


  • 2011

Citation


  • Menant, J. C.., Steele, J. R., Menz, H. B.., Munro, B. J. & Lord, S. R. (2011). Step time variability and pelvis acceleration patterns in younger and older adults: effects of footwear and surface conditions. Research in Sports Medicine, 19 (1), 28-41.

Scopus Eid


  • 2-s2.0-79251476874

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3481

Number Of Pages


  • 13

Start Page


  • 28

End Page


  • 41

Volume


  • 19

Issue


  • 1

Place Of Publication


  • http://pdfserve.informaworld.com/117069_751316856_932526226.pdf