Document Detail


Associations of isokinetic knee extensor and flexor strength with steroid use and walking ability in women with rheumatoid arthritis.
MedLine Citation:
PMID:  11434475     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Seventy-five women with rheumatoid arthritis according to the 1987 criteria of the American Rheumatism Association were examined. Mean age was 61.9 +/- 12.5 years, mean disease duration 14 years. Sixty-three were or had been on steroids (median cumulative prednisolone dose 2.5 g). Maximal voluntary knee extensor and flexor strength (Nm) was assessed at 30 degrees/s by an isokinetic dynamometer. Walking ability was expressed as walking and stair-climbing time (s). Markers of disease activity included number of swollen and tender joints, pain as recorded by the patients on a visual analogue scale (VAS), and disability as scored by the Stanford Health Assessment Questionnaire (HAQ). Muscle strength, walking time (50 m) and stair-climbing time were reduced on average by 30%, and increased by 28% and 54% (p<0.0001), respectively, compared to 67 age-, weight- and height-matched healthy women. Associations between muscle strength and cumulative or current steroid dose were not found after correction for age and disease duration. Significant linear correlations were found between knee extensor strength and walking time (r =-0.78, p<0.0001) and stair-climbing time (r = -0.76, p<0.0001). Similar correlations were found for flexor strength. The correlations remained significant (Rpartial ranging from -0.64 to -0.69, p<0.0001) in multiple regression analyses adjusting for age, height, weight, disease duration, number of swollen and tender joints, and VAS and HAQ scores. In conclusion, negative effects of steroids on muscle strength were not demonstrated. Leg muscle strength is an important and independent determinator of walking ability in RA.
Authors:
O R Madsen; C Egsmose
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical rheumatology     Volume:  20     ISSN:  0770-3198     ISO Abbreviation:  Clin. Rheumatol.     Publication Date:  2001  
Date Detail:
Created Date:  2001-07-03     Completed Date:  2001-11-01     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8211469     Medline TA:  Clin Rheumatol     Country:  Belgium    
Other Details:
Languages:  eng     Pagination:  207-12     Citation Subset:  IM    
Affiliation:
Department of Rheumatology, Amager University Hospital, Copenhagen, Denmark. rintek@dadlnet.dk
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MeSH Terms
Descriptor/Qualifier:
Aged
Anti-Inflammatory Agents / therapeutic use*
Arthritis, Rheumatoid / drug therapy*,  physiopathology*
Cross-Sectional Studies
Female
Humans
Kinetics
Knee Joint / physiopathology*
Middle Aged
Prednisolone / therapeutic use
Tensile Strength
Walking*
Chemical
Reg. No./Substance:
0/Anti-Inflammatory Agents; 50-24-8/Prednisolone

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


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