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Greater tibial bone strength in tennis players than controls in the absence of greater muscle output.

Ireland, Alex and Degens, Hans and Ganse, Bergita and Maden-Wilkinson, Thomas Mark and Wilks, Désirée Christin and Rittweger, Jörn (2015) Greater tibial bone strength in tennis players than controls in the absence of greater muscle output. Journal of Orthopaedic Translation, 3 (3), pp. 142-151. Elsevier. DOI: 10.1016/j.jot.2015.04.001 ISSN 2214-031X

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Official URL: http://dx.doi.org/10.1016/j.jot.2015.04.001

Abstract

Background/Objective: The greatest forces experienced by bones result from muscular contractionsdmuscles produce most force in high-velocity eccentric contractions. Bouncing movements, e.g., sprinting or hoppingdwhere such contractions occurdare highly beneficial for lower limb bones. However, there is a growing body of evidence that torsional stresses are highly osteogenic. Sports in which frequent quick turning occursdhence large torsional stresses can be expectedde.g., tennis, may also improve bone strength even in the absence of large ground reaction and muscle forces. Methods: To investigate the relative effects of bouncing and turning movements on bones, we recruited 47 older men (mean age 62.4 ± 12.9 years). They were competitive sprinters (representing exposure to bouncing movement), competitive tennis players (turning movements), and inactive controls. Peripheral quantitative computed tomography scans of tibial diaphysis at 66% distaleproximal length were taken; muscle sizes from peripheral quantitative computed tomography and countermovement jump performance were also examined. Results: Bone strength of tennis players was clearly greater than that of controls (23% greater bone mass; p < 0.001) and similar to that in sprinters. Tennis players’ jump relative power and height were 15% and 25% lower than those of sprinters (p < 0.05) and similar to control values, being 2% greater and 6% lower, respectively (p > 0.5). Material eccentricity analysis suggests that torsional stresses may be a significant adaptive stimulus to tibial bone.

Item URL in elib:https://elib.dlr.de/98327/
Document Type:Article
Title:Greater tibial bone strength in tennis players than controls in the absence of greater muscle output.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ireland, AlexSchool of Healthcare Science, Manchester Metropolitan University, Manchester, UKUNSPECIFIED
Degens, HansSchool of Healthcare Science, Manchester Metropolitan University, Manchester, UKUNSPECIFIED
Ganse, BergitaDivision Space Physiology, Institute of Aerospace Medicine, German Aerospace Center, Cologne; bergita.ganse (at) dlr.deUNSPECIFIED
Maden-Wilkinson, Thomas MarkSchool of Sport, Exercise and Health Sciences, University of Loughborough, Loughborough, UKUNSPECIFIED
Wilks, Désirée ChristinDepartment of Prevention, Rehabilitation and Sports Medicine, Technische Universitaet Muenchen, Munich, GermanyUNSPECIFIED
Rittweger, JörnInstitute of Aerospace Medicine, German Aerospace Center, DLR e.V., Cologne, Germany and Medical Faculty, University of Cologne, Cologne, Germany; joern.rittweger (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:Journal of Orthopaedic Translation
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:3
DOI :10.1016/j.jot.2015.04.001
Page Range:pp. 142-151
Publisher:Elsevier
ISSN:2214-031X
Status:Published
Keywords:exercise; master athlete; muscle; peripheral quantitative computed tomography
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Integrative Studien (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Space Physiology
Deposited By: Becker, Christine
Deposited On:29 Sep 2015 11:34
Last Modified:13 Jun 2018 14:19

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