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Mechanical Perturbations of the Walking Surface Reveal Unaltered Axial Trunk Stiffness in Chronic Low Back Pain Patients

INTRODUCTION: Patients with chronic low back pain (CLBP) often demonstrate altered timing of thorax rotations in the transverse plane during gait. Increased axial trunk stiffness has been claimed to cause this movement pattern. OBJECTIVES: The objective of this study was to assess whether axial trun...

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Autores principales: Prins, Maarten R., van der Wurff, Peter, Meijer, Onno G., Bruijn, Sjoerd M., van Dieën, Jaap H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4911008/
https://www.ncbi.nlm.nih.gov/pubmed/27310528
http://dx.doi.org/10.1371/journal.pone.0157253
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author Prins, Maarten R.
van der Wurff, Peter
Meijer, Onno G.
Bruijn, Sjoerd M.
van Dieën, Jaap H.
author_facet Prins, Maarten R.
van der Wurff, Peter
Meijer, Onno G.
Bruijn, Sjoerd M.
van Dieën, Jaap H.
author_sort Prins, Maarten R.
collection PubMed
description INTRODUCTION: Patients with chronic low back pain (CLBP) often demonstrate altered timing of thorax rotations in the transverse plane during gait. Increased axial trunk stiffness has been claimed to cause this movement pattern. OBJECTIVES: The objective of this study was to assess whether axial trunk stiffness is increased in gait in CLBP patients. METHODS: 15 CLBP patients and 15 healthy controls walked on a treadmill that imposed rotational perturbations in the transverse plane. The effect of these perturbations on transverse pelvis, thorax and trunk (thorax relative to pelvis) rotations was evaluated in terms of residual rotations, i.e., the deviation of these movements from the unperturbed patterns. In view of the heterogeneity of the CLBP group, we additionally performed a subgroup comparison between seven patients and seven controls with maximal between-group contrast for timing of thorax rotations. RESULTS: Rotations of the walking surface had a clear effect on transverse pelvis, thorax and trunk rotations in all groups. No significant between-group differences on residual transverse pelvis, thorax and trunk rotations were observed. CONCLUSION: Axial trunk stiffness in gait does not appear to be increased in CLBP. Altered timing of thorax rotations in CLBP does not seem to be a result of increased axial trunk stiffness.
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spelling pubmed-49110082016-07-06 Mechanical Perturbations of the Walking Surface Reveal Unaltered Axial Trunk Stiffness in Chronic Low Back Pain Patients Prins, Maarten R. van der Wurff, Peter Meijer, Onno G. Bruijn, Sjoerd M. van Dieën, Jaap H. PLoS One Research Article INTRODUCTION: Patients with chronic low back pain (CLBP) often demonstrate altered timing of thorax rotations in the transverse plane during gait. Increased axial trunk stiffness has been claimed to cause this movement pattern. OBJECTIVES: The objective of this study was to assess whether axial trunk stiffness is increased in gait in CLBP patients. METHODS: 15 CLBP patients and 15 healthy controls walked on a treadmill that imposed rotational perturbations in the transverse plane. The effect of these perturbations on transverse pelvis, thorax and trunk (thorax relative to pelvis) rotations was evaluated in terms of residual rotations, i.e., the deviation of these movements from the unperturbed patterns. In view of the heterogeneity of the CLBP group, we additionally performed a subgroup comparison between seven patients and seven controls with maximal between-group contrast for timing of thorax rotations. RESULTS: Rotations of the walking surface had a clear effect on transverse pelvis, thorax and trunk rotations in all groups. No significant between-group differences on residual transverse pelvis, thorax and trunk rotations were observed. CONCLUSION: Axial trunk stiffness in gait does not appear to be increased in CLBP. Altered timing of thorax rotations in CLBP does not seem to be a result of increased axial trunk stiffness. Public Library of Science 2016-06-16 /pmc/articles/PMC4911008/ /pubmed/27310528 http://dx.doi.org/10.1371/journal.pone.0157253 Text en © 2016 Prins et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Prins, Maarten R.
van der Wurff, Peter
Meijer, Onno G.
Bruijn, Sjoerd M.
van Dieën, Jaap H.
Mechanical Perturbations of the Walking Surface Reveal Unaltered Axial Trunk Stiffness in Chronic Low Back Pain Patients
title Mechanical Perturbations of the Walking Surface Reveal Unaltered Axial Trunk Stiffness in Chronic Low Back Pain Patients
title_full Mechanical Perturbations of the Walking Surface Reveal Unaltered Axial Trunk Stiffness in Chronic Low Back Pain Patients
title_fullStr Mechanical Perturbations of the Walking Surface Reveal Unaltered Axial Trunk Stiffness in Chronic Low Back Pain Patients
title_full_unstemmed Mechanical Perturbations of the Walking Surface Reveal Unaltered Axial Trunk Stiffness in Chronic Low Back Pain Patients
title_short Mechanical Perturbations of the Walking Surface Reveal Unaltered Axial Trunk Stiffness in Chronic Low Back Pain Patients
title_sort mechanical perturbations of the walking surface reveal unaltered axial trunk stiffness in chronic low back pain patients
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4911008/
https://www.ncbi.nlm.nih.gov/pubmed/27310528
http://dx.doi.org/10.1371/journal.pone.0157253
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