elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Side-to-side differences in bone strength in master jumpers and sprinters

Ireland, Alex und Korhonen, Marko und Heinonen, Ari und Suominen, Harri und Baur, Chris und Stevens, Sarah und Degens, Hans und Rittweger, Jörn (2011) Side-to-side differences in bone strength in master jumpers and sprinters. Journal of Musculoskeletal and Neuronal Interactions, 11 (4), Seiten 298-305. ISSN 1108-7161.

[img] PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
126kB

Kurzfassung

Introduction: This study evaluated side-to-side difference in tibial bone structure, calf muscle cross-sectional area (CSA) and hopping force in master athletes as a result of training for sports with different magnitudes of inter-leg loading difference. Methods: Tibial bone parameters (at 4%, 14%, 38% and 66% tibial length proximal to distal end), muscle CSA (at 66% tibial length) and hopping forces of both legs of 51 master athletes (conditioned jumpers, conditioned triple jumpers, unconditioned jumpers, hurdlers and sprinters) were examined using pQCT. In epiphyseal 4% slice bone CSA (Ar.tot), total BMC (vBMC.tot), trabecular BMC (vBMC.tb) cortical BMC (vBMC.ct), and trabecular BMD (vBMD.tb) were measured. In diaphyseal slices, Ar.tot, vBMC.ct, cortical density (vBMD.ct), cross-sectional moment of inertia (CSMI) and calf muscle CSA (MuscA) were examined. Results: In conditioned jumpers, side-to-side differences in favour of take-off leg were found in 4% slice in vBMC.tb (+4.1%) (P<0.05). A side-to-side difference was found in 66% slice vBMC.ct and CSMI (both P<0.05), with conditioned jumper (+2.8% and 6.6%) and triple jumper (+2.7% and 7.2%) values higher than other groups. Conclusion: The results suggest that regular training in highimpact sports with uneven lower limb loading results in side-to-side differences in skeletal adaptation independent of age and gender, suggesting that high-impact exercise is effective in maintaining bone strength throughout human lifespan.

Dokumentart:Zeitschriftenbeitrag
Titel:Side-to-side differences in bone strength in master jumpers and sprinters
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Ireland, AlexManchester Metropolitan University
Korhonen, MarkoUniversity of Jyväskyä
Heinonen, AriUniversity of Jyväskyä
Suominen, HarriUniversity of Jyväskyä
Baur, ChrisNovotec Medical
Stevens, SarahManchester Metropolitan University
Degens, HansManchester Metropolitan University
Rittweger, Jörnjoern.rittweger@dlr.de
Datum:2011
Erschienen in:Journal of Musculoskeletal and Neuronal Interactions
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:11
Seitenbereich:Seiten 298-305
ISSN:1108-7161
Status:veröffentlicht
Stichwörter:Ageing, Exercise, Loading, pQCT
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W FR - Forschung unter Weltraumbedingungen (alt)
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W FR - Forschung unter Weltraumbedingungen
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Integrative Studien (alt)
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Luft- und Raumfahrtmedizin > Weltraumphysiologie
Hinterlegt von: Jörn Rittweger
Hinterlegt am:06 Dez 2011 12:23
Letzte Änderung:07 Feb 2013 19:27

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.