Sagittal plane rotation center of lower lumbar spine during a dynamic weight-lifting activity

Journal of Biomechanics
Zhan LiuGuoan Li

Abstract

This study investigated the center of rotation (COR) of the intervertebral segments of the lower lumbar spine (L4-L5 and L5-S1 segments) in sagittal plane during a weight-lifting (3.6 kg in each hand) extension activity performed with the pelvis constrained. Seven healthy subjects were studied using a dual fluoroscopic imaging technique. Using the non-weightbearing, supine position during MRI scan as a reference, the average intervertebral flexion angles of the L4-L5 and L5-S1 were 6.6° and 5.3° at flexion position of the body, respectively, and were -1.8° and -3.5° at extension position of the body, respectively. The CORs of the lower lumbar spine were found segment-dependent and changed with the body postures. The CORs of the L4-L5 segment were at the location about 75% posterior from the anterior edge of the disc at flexion positions of the body, and moved to about 92% of the posterior portion of the disc at extension positions of the body. The CORs of the L5-S1 segment were at 95% posterior portion of the disc at flexion positions of the body, and moved outside of the posterior edge of the disc by about 12% of the disc length at extension positions of the body. These results could help understand the physiological motion ch...Continue Reading

References

Apr 23, 2003·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Avinash G PatwardhanOdysseas Paxinos
Dec 16, 2004·Journal of Biomechanics·Douglas A DennisWilliam Hoff
Sep 22, 2005·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·Marc-Antoine RousseauJeffery C Lotz
May 3, 2006·The Spine Journal : Official Journal of the North American Spine Society·Marc-Antoine RousseauJeffery C Lotz
May 3, 2006·The Journal of Bone and Joint Surgery. American Volume·Harry N Herkowitz
Jul 25, 2006·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·Brian J C Freeman, James Davenport
Apr 7, 2007·Spine·Christoph J SiepeAndreas Korge
Nov 7, 2007·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Taka-aki Moro-okaScott A Banks
Sep 24, 2008·The Spine Journal : Official Journal of the North American Spine Society·Michael X RohanRalph F Rashbaum
May 1, 2009·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·Riccardo SinigagliaDaniele A Fabris Monterumici
Feb 6, 2010·Journal of Spinal Disorders & Techniques·Tosan Okoro, Phillip Sell
Jun 15, 2010·Journal of Biomechanics·Marcel DreischarfAntonius Rohlmann
Apr 2, 2011·Journal of Biomechanics·Kyungsoo KimSuKyoung Lee
Feb 1, 1992·Clinical Biomechanics·J J CriscoT R Oxland
Apr 30, 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·Minfei WuGuoan Li
Feb 3, 2015·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Yong FengGuoan Li
Mar 25, 2015·Journal of Biomechanics·David LaiGary D Smith
Jun 6, 2015·Journal of Neurosurgery. Spine·Emma M SimGregory M Malham
Sep 1, 2015·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·Y YanJ Y Lee

❮ Previous
Next ❯

Citations

May 2, 2019·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Chaochao Zhou, Ryan Willing
Sep 29, 2020·Frontiers in Physiology·Jaap SwanenburgPetra Schweinhardt
Nov 17, 2016·Computer Methods in Biomechanics and Biomedical Engineering·Sadegh Naserkhaki, Marwan El-Rich
Aug 20, 2020·JBI Evidence Synthesis·Martha FunabashiGregory Kawchuk

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

The Spine Journal : Official Journal of the North American Spine Society
Weiye ZhongGuoan Li
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
Minfei WuGuoan Li
© 2021 Meta ULC. All rights reserved