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ID 30898
file
creator
Kito, Nobuhiro
Yamasaki, Takahiro
Kanemura, Naohiko
Okanishi, Natsuko
Ozawa, Junya
Moriyama, Hideki
subject
Knee osteoarthritis
Knee adduction moment impulse
Gait analysis
Pain
Physical function
NDC
Medical sciences
abstract
Background: An increase in the knee adduction moment is one of the risk factors of medial knee osteoarthritis. This study examined the relationship between knee adduction moment and self-reported pain and disability. We also investigated the influence of pain on the relationships between knee adduction moment and gait performance and disability. Methods: Thirty-eight Japanese women with medial knee osteoarthritis participated in this study (6637 years (41-79 years)). Gait analysis involved the measurement of the external knee adduction moment impulse in the stance duration and during 3 subdivisions of stance. The total, pain and stiffness, and physical function Japanese Knee Osteoarthritis Measure scores were determined. Findings: The pain and stiffness, physical function, and total scores were positively correlated with the knee adduction moment impulses in the stance duration, and initial and second double support interval, and single limb support interval. The knee adduction moment impulse during the stance duration was related to the pain and stiffness subscale and gait velocity. The pain and stiffness subscale was related to the physical function subscale. Interpretation: Our results suggest that increasing in the knee adduction moment impulse, a proxy for loading on the medial compartment of the knee, is related to increased pain during weight-bearing activities such as walking, thereby restricting walking performance and causing disability by reducing gait velocity. Thus, the reduction in the knee adduction moment impulse during gait may result in pain relief and may serve as a conservative treatment option with disease-modifying potential. (C) 2010 Elsevier Ltd. All rights reserved.
journal title
Clinical Biomechanics
volume
Volume 25
issue
Issue 9
start page
914
end page
919
date of issued
2010-11
publisher
Elsevier Science Ltd.
issn
0268-0033
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2010 Elsevier Ltd
relation url
department
Graduate School of Health Science