The effect of axial load on the sagittal plane curvature of the upright human spine in vivo

Journal of Biomechanics
Judith R MeakinRichard M Aspden

Abstract

Determining the effect of load carriage on the human spine in vivo is important for determining spinal forces and establishing potential mechanisms of back injury. Previous studies have suggested that the natural curvature of the spine straightens under load, but are based on modelling and external measurements from the surface of the back. In the current study, an upright positional MRI scanner was used to acquire sagittal images of the lumbar and lower thoracic spine of 24 subjects. The subjects were imaged in standing whilst supporting 0, 8 and 16 kg of load which was applied axially across the shoulders using an apron. An active shape model of the vertebral bodies from T10 to S1 was created and used to characterise the effect of load. The results from the shape model showed that the behaviour of the average-shaped spine was to straighten slightly. However, the shape model also showed that the effect of load exhibited systematic variation between individuals. Those who had a smaller than average curvature before loading straightened under load, whereas those who had a greater than average curvature before loading showed an increase in curvature under load. The variation in behaviour of differently shaped spines may have furt...Continue Reading

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Citations

Jan 25, 2012·Computer Methods in Biomechanics and Biomedical Engineering·Ali H A AliJudith R Meakin
Sep 20, 2012·Journal of Strength and Conditioning Research·Renate ListSilvio Lorenzetti
Jan 15, 2014·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Anastasia V PavlovaRichard M Aspden
Dec 29, 2013·Annals of Biomedical Engineering·Craig J SimonsBradley S Davidson
Jan 14, 2016·International Journal of Injury Control and Safety Promotion·Robin Marc OrrRodney Pope
Dec 18, 2010·Medical Engineering & Physics·Kap-Soo HanTae-Hong Lim
May 13, 2009·Journal of Biomechanics·A RohlmannG Bergmann
Jan 10, 2012·Physiotherapy Research International : the Journal for Researchers and Clinicians in Physical Therapy·Diana M PerrimanPaul N Smith
Nov 5, 2011·American Journal of Physical Anthropology·Ella BeenPatricia A Kramer
May 3, 2016·Journal of Physical Therapy Science·Kyoungkyu Jeon, Soonyoung Kim
Jan 24, 2014·International Journal of Cardiology·J Ma'touqM H Tayebjee
Sep 3, 2014·Journal of Occupational Rehabilitation·Robin M OrrRodney Pope
Feb 5, 2015·Journal of Biomechanics·Thomas ZanderAntonius Rohlmann
Sep 14, 2013·International Journal of Injury Control and Safety Promotion·Robin Marc OrrJulia Coyle
May 11, 2016·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Niladri Kumar MahatoBrian Clark
Oct 22, 2009·Journal of Korean Neurosurgical Society·Kyung-Chul ChoiSang-Ho Lee
Mar 26, 2013·Spine·Ana E Rodríguez-SotoSamuel R Ward
Nov 26, 2016·BMC Musculoskeletal Disorders·Robin Marc Orr, Rodney Pope
Jun 14, 2017·Annals of Biomedical Engineering·Farshid GhezelbashMohamad Parnianpour
Feb 15, 2017·American Journal of Physical Anthropology·Eric R CastilloDaniel E Lieberman
Jun 17, 2019·Spine Deformity·Judith R MeakinAndrew Clarke
Jul 6, 2020·BMC Musculoskeletal Disorders·Janet A DeaneAlison H McGregor
Feb 2, 2021·Journal of Back and Musculoskeletal Rehabilitation·Sihwa ParkYong-Seok Jee
Jan 26, 2020·Spine Deformity·Judith R MeakinAndrew Clarke
Apr 25, 2017·Journal of Human Evolution·Asier Gómez-OlivenciaElla Been
May 1, 2021·International Journal of Environmental Research and Public Health·Robin OrrJoseph J Knapik

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