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Background: Self-reported walking difficulty is a problem among patients with knee osteoarthritis (OA), however, these patients have never been studied as a subgroup population.
Objective: The purpose of this study is to examine known knee OA gait mechanics among those with knee OA, with (Diff) and without (NoDiff) self-reported walking difficulty, as compared to age-and sex-matched controls without knee OA.
Methods: A total of 39 subjects in three groups of 13 individuals walked at a controlled gait speed during instrumented gait analysis. Gait mechanics were compared between a priori determined groups using the independent t-test.
Results: The results of the study found that among those with knee OA, knee excursion angles were not significantly different between the Diff and NoDiff groups. Whereas, external knee moments were significantly different between the Diff and NoDiff groups but not between the NoDiff and the control groups. The lack of difference between the NoDiff and control groups were especially interesting because of the moderate to severe OA in the NoDiff group. Therefore, the findings of this study suggest the importance of considering self-reported walking difficulty among those with knee OA. Perhaps patients with knee OA-related walking difficulties use alternative gait parameters that may need to be clinically addressed. Strengths of the study included a matched design and controlled walking speed, whereas limitations were the small sample size and cross-sectional design.
Conclusions: Given the relationships found among self-reported walking difficulty, OA presence, and gait parameters, addressing gait parameters specifically related to walking difficulty may be indicated in this subgroup knee OA population.
Influences of knee osteoarthritis and walking difficulty on knee kinematics and kinetics
Creators
Annalisa Na - The University of Texas Medical Branch at Galveston
Sara R. Piva - University of Pittsburgh
Thomas S. Buchanan - University of Delaware
Publication Details
Gait & posture, v 61, pp 439-444
Publisher
Elsevier
Number of pages
6
Grant note
Orthopaedic Section of the American Physical Therapy Association
U54GM104941 / NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of General Medical Sciences (NIGMS)
Resource Type
Journal article
Language
English
Academic Unit
Physical Therapy (and Rehabilitation Sciences)
Web of Science ID
WOS:000428028400065
Scopus ID
2-s2.0-85042390990
Other Identifier
991021867023904721
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Collaboration types
Domestic collaboration
Web of Science research areas
Neurosciences
Orthopedics
Sport Sciences
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