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Torsion and Antero-Posterior Bending in the In Vivo Human Tibia Loading Regimes during Walking and Running

Yang, Pengfei and Sanno, Maximilian and Ganse, Bergita and Koy, Timmo and Brüggemann, Gert-Peter and Müller, Lars Peter and Rittweger, Jörn (2014) Torsion and Antero-Posterior Bending in the In Vivo Human Tibia Loading Regimes during Walking and Running. PLoS One, 9 (4), pp. 1-12. DOI: 10.1371/journal.pone.0094525. ISSN 1932-6203.

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Abstract

Bending, in addition to compression, is recognized to be a common loading pattern in long bones in animals. However, due to the technical difficulty of measuring bone deformation in humans, our current understanding of bone loading patterns in humans is very limited. In the present study, we hypothesized that bending and torsion are important loading regimes in the human tibia. In vivo tibia segment deformation in humans was assessed during walking and running utilizing a novel optical approach. Results suggest that the proximal tibia primarily bends to the posterior (bending angle: 0.15°–1.30°) and medial aspect (bending angle: 0.38°–0.90°) and that it twists externally (torsion angle: 0.67°–1.66°) in relation to the distal tibia during the stance phase of overground walking at a speed between 2.5 and 6.1 km/h. Peak posterior bending and peak torsion occurred during the first and second half of stance phase, respectively. The peak-to-peak antero-posterior (AP) bending angles increased linearly with vertical ground reaction force and speed. Similarly, peak-to-peak torsion angles increased with the vertical free moment in four of the five test subjects and with the speed in three of the test subjects. There was no correlation between peak-to-peak medio-lateral (ML) bending angles and ground reaction force or speed. On the treadmill, peak-to-peak AP bending angles increased with walking and running speed, but peak-to-peak torsion angles and peak-to-peak ML bending angles remained constant during walking. Peak-to-peak AP bending angle during treadmill running was speed-dependent and larger than that observed during walking. In contrast, peak-to-peak tibia torsion angle was smaller during treadmill running than during walking. To conclude, bending and torsion of substantial magnitude were observed in the human tibia during walking and running. A systematic distribution of peak amplitude was found during the first and second parts of the stance phase.

Document Type:Article
Title:Torsion and Antero-Posterior Bending in the In Vivo Human Tibia Loading Regimes during Walking and Running
Authors:
AuthorsInstitution or Email of Authors
Yang, Pengfeiyangpf@nwpu.edu.cn
Sanno, MaximilianInstitute of Biomechanics and Orthopaedics, German Sport University Cologne, Cologne, Germany
Ganse, Bergitabergita.ganse@dlr.de
Koy, Timmotimmo.koy@uk-koeln.de
Brüggemann, Gert-PeterInstitute of Biomechanics and Orthopaedics, German Sport University Cologne, Cologne, Germany
Müller, Lars Peterlars.mueller@uk-koeln.de
Rittweger, Jörnjoern.rittweger@dlr.de
Date:14 April 2014
Journal or Publication Title:PLoS One
Refereed publication:Yes
In Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:9
DOI:10.1371/journal.pone.0094525
Page Range:pp. 1-12
Editors:
EditorsEmail
Carrier, DavidUniversity of Utah
ISSN:1932-6203
Status:Published
Keywords:Torsion, Antero-Posterior, Bending, Tibia, Loading
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignement
DLR - Research theme (Project):R -- no assignement
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Space Physiology
Deposited By: Christine Becker
Deposited On:29 Apr 2014 11:15
Last Modified:29 Apr 2014 11:15

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