PMID- 16147420
OWN - NLM
STAT- MEDLINE
DCOM- 20051101
LR  - 20220317
IS  - 0014-0139 (Print)
IS  - 0014-0139 (Linking)
VI  - 48
IP  - 8
DP  - 2005 Jun 22
TI  - A comparison of foot/ground interaction during stair negotiation and level 
      walking in young and older women.
PG  - 1047-56
AB  - Stair design and environmental conditions may play a role in slip accidents on 
      stairs in the workplace, but little is known about the slip resistance 
      requirements on stairs compared to level walking. Older adults have an increased 
      risk of falling compared to younger adults and may be at greater risk during 
      stair negotiation. The purpose of this study was to determine whether the ground 
      reaction force profiles and peak required coefficient of friction (RCOF) differed 
      between young and elderly women or between stair ascent, stair descent and 
      overground walking. While there was a trend towards less risky stair descent 
      behaviour in the older women in terms of their peak RCOF values during stair 
      descent, the increased vertical loading rate in the older women may imply reduced 
      dynamic balance control. The largest mean RCOF peaks occurred during stair ascent 
      in both young and older women, but there were several overground walking trials 
      in both groups and a few stair descent trials of the young women, which resulted 
      in RCOF peaks greater than 0.5. These results should be considered when choosing 
      stair surface materials, particularly in occupational and outdoor settings where 
      the tread surfaces may become wet or contaminated.
FAU - Hamel, Kathryn A
AU  - Hamel KA
AD  - The Department of Physical Therapy and Rehabilitation Science, University of 
      California San Francisco, 94143, USA. hamelk@ptrehab.ucsf.edu
FAU - Okita, Noriaki
AU  - Okita N
FAU - Bus, Sicco A
AU  - Bus SA
FAU - Cavanagh, Peter R
AU  - Cavanagh PR
LA  - eng
GR  - R01 AG140703/AG/NIA NIH HHS/United States
GR  - T32 AG00048/AG/NIA NIH HHS/United States
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Research Support, U.S. Gov't, P.H.S.
PL  - England
TA  - Ergonomics
JT  - Ergonomics
JID - 0373220
SB  - IM
MH  - *Accidental Falls
MH  - Adult
MH  - Age Factors
MH  - Aged
MH  - Aging/*physiology
MH  - Environment Design
MH  - Female
MH  - *Foot
MH  - *Friction
MH  - Humans
MH  - Postural Balance/*physiology
MH  - Risk Factors
MH  - Walking/*physiology
EDAT- 2005/09/09 09:00
MHDA- 2005/11/03 09:00
CRDT- 2005/09/09 09:00
PHST- 2005/09/09 09:00 [pubmed]
PHST- 2005/11/03 09:00 [medline]
PHST- 2005/09/09 09:00 [entrez]
AID - XW0351W7U75055V0 [pii]
AID - 10.1080/00140130500193665 [doi]
PST - ppublish
SO  - Ergonomics. 2005 Jun 22;48(8):1047-56. doi: 10.1080/00140130500193665.