Axial pelvis range of motion affects thorax-pelvis timing during gait

Luca E Cornelisse; Onno G Meijer; Peter van der Wurff; Sjoerd M Bruijn; Jaap H van Dieën

doi:10.1016/j.jbiomech.2019.08.002

Axial pelvis range of motion affects thorax-pelvis timing during gait

Luca E Cornelisse, Onno G Meijer, Peter van der Wurff, Sjoerd M Bruijn, Jaap H van Dieën

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Abstract

During gait, patients with pelvic girdle pain and low back pain demonstrate an altered phase relationship between axial thorax and pelvis rotations (thorax-pelvis relative phase). This could be the result of an increase in axial pelvis range of motion (ROM) which has been observed in these patients as well. To establish this relationship, we investigated if altered axial pelvis ROM during gait affects thorax-pelvis relative phase in 12 healthy subjects. These subjects walked on a treadmill and received real-time feedback on axial pelvis rotations. Subjects were asked to (1) walk normal, and walk with (2) decreased and (3) increased pelvis ROM. Gait speed and stride frequency were matched between trials. Subjects were able to increase pelvis ROM to a large extent, but the reduction in pelvis ROM was relatively small. Walking with large pelvis ROM resulted in a change in thorax-pelvis relative phase similar to that in pelvic girdle pain and low back pain. A forward dynamic model was used to predict the effect of manipulation of pelvis ROM on timing of thorax rotations independent of apparent axial trunk stiffness and arm swing amplitude (which can both affect thorax-pelvis relative phase). The model predicted a similar, even larger, effect of large axial pelvis ROM on thorax-pelvis relative phase, as observed experimentally. We conclude that walking with actively increased ROM of axial pelvis rotations in healthy subjects is associated with a shift in thorax-pelvis relative phase, similar to observations in patients with pelvic girdle pain and low back pain.

Original language	English
Article number	109308
Pages (from-to)	1-9
Number of pages	9
Journal	Journal of Biomechanics
Volume	95
Early online date	8 Aug 2019
DOIs	https://doi.org/10.1016/j.jbiomech.2019.08.002
Publication status	Published - 11 Oct 2019

Bibliographical note

Funding

The authors would like to thank Quirien Welmer for her help in subject recruitment and in performing measurements. MRP co-designed the study, carried out the measurements and data analysis, was involved in the interpretation of data, and drafted the manuscript; LEC was involved in the data analysis, the interpretation of data and drafting the manuscript; OGM was involved in the interpretation of data and drafting of the manuscript; PvdW was involved in the interpretation of data and drafting of the manuscript; SMB co-designed the study, was involved in the data analysis, the interpretation of data and drafting of the manuscript; JHvD co-designed the study, was involved in the interpretation of data and drafting of the manuscript. All authors gave final approval for publication. SMB was funded by a VIDI grant (016.Vidi.178.014) from the Dutch Organisation for Scientific Research (NWO). The authors declare no competing financial and personal relationships with other people or organizations.

Funders	Funder number
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

Keywords

Coordination
Gait
Pelvis
Range of motion
Relative phase
Thorax

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10.1016/j.jbiomech.2019.08.002

Axial pelvis range of motion affects thorax-pelvis timing during gaitFinal published version, 1.38 MBLicence: Article 25fa Dutch Copyright Act

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abstract = "During gait, patients with pelvic girdle pain and low back pain demonstrate an altered phase relationship between axial thorax and pelvis rotations (thorax-pelvis relative phase). This could be the result of an increase in axial pelvis range of motion (ROM) which has been observed in these patients as well. To establish this relationship, we investigated if altered axial pelvis ROM during gait affects thorax-pelvis relative phase in 12 healthy subjects. These subjects walked on a treadmill and received real-time feedback on axial pelvis rotations. Subjects were asked to (1) walk normal, and walk with (2) decreased and (3) increased pelvis ROM. Gait speed and stride frequency were matched between trials. Subjects were able to increase pelvis ROM to a large extent, but the reduction in pelvis ROM was relatively small. Walking with large pelvis ROM resulted in a change in thorax-pelvis relative phase similar to that in pelvic girdle pain and low back pain. A forward dynamic model was used to predict the effect of manipulation of pelvis ROM on timing of thorax rotations independent of apparent axial trunk stiffness and arm swing amplitude (which can both affect thorax-pelvis relative phase). The model predicted a similar, even larger, effect of large axial pelvis ROM on thorax-pelvis relative phase, as observed experimentally. We conclude that walking with actively increased ROM of axial pelvis rotations in healthy subjects is associated with a shift in thorax-pelvis relative phase, similar to observations in patients with pelvic girdle pain and low back pain.",

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Axial pelvis range of motion affects thorax-pelvis timing during gait

Abstract

Bibliographical note

Funding

Keywords

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