Document Detail


Obstacle avoidance in persons with rheumatoid arthritis walking on a treadmill.
MedLine Citation:
PMID:  19917160     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Patients with rheumatoid arthritis (RA) are at increased risk of falling. In healthy elderly persons with a history of falling, a reduced ability to avoid obstacles while walking has been shown to relate to increased fall risk. The aim of this study was to determine whether this potential risk factor for falls would also be present in persons with RA. METHODS: Twelve RA patients and twelve controls performed an obstacle avoidance task on a treadmill. The obstacle was released during three different phases of the gait cycle (late stance, early swing and mid swing) to create increasing difficulty levels. The primary outcome measure was failure rate. RESULTS: Overall, the RA patients had significantly higher obstacle avoidance failure rates. To avoid an obstacle, a long or a short stride strategy can be used, the choice of which depends on the phase of obstacle release. There were no significant group differences in the distribution of obstacle avoidance strategies. However, the RA patients made significantly more failures when performing a short stride strategy in mid swing obstacle release trials (the condition which gave the patients the least time to react; available response time). In addition, compared to the controls, the RA group approached the obstacle more closely prior to obstacle crossing (shorter toe distance), thereby increasing the risk of stumbling. CONCLUSION: Obstacle avoidance performance in persons with RA is significantly deteriorated compared to age- and gender-matched controls, especially when available response time is low. This deficit may contribute to their higher fall risk.
Authors:
E Smulders; C Schreven; W van Lankveld; J Duysens; V Weerdesteyn
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical and experimental rheumatology     Volume:  27     ISSN:  0392-856X     ISO Abbreviation:  Clin. Exp. Rheumatol.     Publication Date:    2009 Sep-Oct
Date Detail:
Created Date:  2009-11-17     Completed Date:  2010-03-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8308521     Medline TA:  Clin Exp Rheumatol     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  779-85     Citation Subset:  IM    
Affiliation:
Research, Development and Education, Sint Maartenskliniek, Nijmegen, The Netherlands. e.smulders@maartenskliniek.nl
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MeSH Terms
Descriptor/Qualifier:
Accidental Falls / prevention & control
Adult
Aged
Arthritis, Rheumatoid / physiopathology*
Case-Control Studies
Exercise Test
Female
Gait*
Humans
Male
Middle Aged
Motor Skills / physiology*
Walking

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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