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The effect of eight weeks of exercise on knee adduction moment in early knee osteoarthritis - a pilot study.

Thorstensson, Carina LU ; Henriksson, M; von Porat, Anette LU ; Sjödahl Hammarlund, Catharina LU and Roos, Ewa LU (2007) In Osteoarthritis and Cartilage 15(10). p.1163-1170
Abstract
Objective: Reduced muscle function, causing greater knee joint load, is a potentially modifiable risk factor of knee osteoarthritis (OA). Exercise is an important treatment of knee CA, but the effect on joint load has not been determined. The aim of this study was to investigate the effect of exercise on knee adduction moment during one-leg rise and gait. Design: Patients below age 65 with early signs of radiographic knee OA, from a population-based cohort on OA development, were invited to participate in the study. They defined their most symptomatic knee as the index knee. Knee adduction moment during one-leg rise from a stool (48 cm), and during gait was assessed using a three-dimensional motion analysis system, before and after eight... (More)
Objective: Reduced muscle function, causing greater knee joint load, is a potentially modifiable risk factor of knee osteoarthritis (OA). Exercise is an important treatment of knee CA, but the effect on joint load has not been determined. The aim of this study was to investigate the effect of exercise on knee adduction moment during one-leg rise and gait. Design: Patients below age 65 with early signs of radiographic knee OA, from a population-based cohort on OA development, were invited to participate in the study. They defined their most symptomatic knee as the index knee. Knee adduction moment during one-leg rise from a stool (48 cm), and during gait was assessed using a three-dimensional motion analysis system, before and after eight weeks of supervised exercise. Results: Thirteen patients, seven women, mean age 54.5, 12/13 with Kellgren and Lawrence grade I or II, took part in the study. Peak knee adduction moment during one-leg rise was reduced by 0.08 (95% CI 0.01;0.16) Nm/kg, or 14%, for the index knee, and 0.05 (95% CI -0.04;0.14), or 8% for the opposite knee after eight weeks. The reductions in peak adduction moment during gait were smaller and not significant. Conclusions: This study indicates that peak knee adduction moment could be reduced by supervised, individualized exercise in middle-aged patients presenting early signs of knee osteoarthritis, suggesting further investigation of this area. Peak adduction moment during one-leg rise seems to be more sensitive to deviations and change than peak adduction moment during gait in this population. (C) 2007 Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
adduction moment, gait, knee osteoarthritis, quadriceps, muscle function, exercise
in
Osteoarthritis and Cartilage
volume
15
issue
10
pages
1163 - 1170
publisher
Elsevier
external identifiers
  • wos:000249983100010
  • scopus:34548588305
ISSN
1063-4584
DOI
10.1016/j.joca.2007.03.012
language
English
LU publication?
yes
id
04805dd5-3651-4e8e-b270-121b3f0099ab (old id 167312)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=17466541&dopt=Abstract
date added to LUP
2007-07-10 14:39:40
date last changed
2017-10-29 03:39:07
@article{04805dd5-3651-4e8e-b270-121b3f0099ab,
  abstract     = {Objective: Reduced muscle function, causing greater knee joint load, is a potentially modifiable risk factor of knee osteoarthritis (OA). Exercise is an important treatment of knee CA, but the effect on joint load has not been determined. The aim of this study was to investigate the effect of exercise on knee adduction moment during one-leg rise and gait. Design: Patients below age 65 with early signs of radiographic knee OA, from a population-based cohort on OA development, were invited to participate in the study. They defined their most symptomatic knee as the index knee. Knee adduction moment during one-leg rise from a stool (48 cm), and during gait was assessed using a three-dimensional motion analysis system, before and after eight weeks of supervised exercise. Results: Thirteen patients, seven women, mean age 54.5, 12/13 with Kellgren and Lawrence grade I or II, took part in the study. Peak knee adduction moment during one-leg rise was reduced by 0.08 (95% CI 0.01;0.16) Nm/kg, or 14%, for the index knee, and 0.05 (95% CI -0.04;0.14), or 8% for the opposite knee after eight weeks. The reductions in peak adduction moment during gait were smaller and not significant. Conclusions: This study indicates that peak knee adduction moment could be reduced by supervised, individualized exercise in middle-aged patients presenting early signs of knee osteoarthritis, suggesting further investigation of this area. Peak adduction moment during one-leg rise seems to be more sensitive to deviations and change than peak adduction moment during gait in this population. (C) 2007 Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved.},
  author       = {Thorstensson, Carina and Henriksson, M and von Porat, Anette and Sjödahl Hammarlund, Catharina and Roos, Ewa},
  issn         = {1063-4584},
  keyword      = {adduction moment,gait,knee osteoarthritis,quadriceps,muscle function,exercise},
  language     = {eng},
  number       = {10},
  pages        = {1163--1170},
  publisher    = {Elsevier},
  series       = {Osteoarthritis and Cartilage},
  title        = {The effect of eight weeks of exercise on knee adduction moment in early knee osteoarthritis - a pilot study.},
  url          = {http://dx.doi.org/10.1016/j.joca.2007.03.012},
  volume       = {15},
  year         = {2007},
}