Article (Scientific journals)
Eccentric training improves tendon biomechanical properties: a rat model
Kaux, Jean-François; Drion, Pierre; Libertiaux, Vincent et al.
2013In Journal of Orthopaedic Research, 31 (1), p. 119-124
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Keywords :
Tendon; eccentric; concentric; rat
Abstract :
[en] Introduction: The treatment of choice for tendinopathies is eccentric reeducation. Although the clinical results appear favourable, the biomechanical changes to the tissue are not yet clear. Even if the mechanotransduction theory is commonly accepted, the physiology of tendons is not clearly understood. We aimed to better define the biomechanical and histological changes that affect healthy tendon after eccentric and concentric training. Materiel and Methods: This study compared the effects of 2 methods of training (eccentric (E) training and concentric (C) training) with untrained (U) rats. The animals were trained over a period of 5 weeks. The tricipital, patellar and Achilles tendons were removed, measured and a tensile test until failure was performed. A histological analysis (hematoxylin and eosin and Masson's trichrome stains) was also realized. Results: There was a significant increase in the rupture force of the patellar and tricipital tendons between the U and E groups. The tricipital tendons in the control group presented a significantly smaller cross-sectional area than the E- and C-trained groups, but none was constated between E and C groups. No significant difference was observed for the mechanical stress between the three groups for all three tendons. Histological studies demonstrated the development of a greater number of blood vessels and a larger quantity of collagen in the E group. Discussion and conclusion: The mechanical properties of tendons in rats improve after specific training, especially following eccentric training. Our results partly explained how mechanical loading, especially in eccentric mode, could improve the healing of tendon.
Disciplines :
Orthopedics, rehabilitation & sports medicine
Author, co-author :
Kaux, Jean-François  ;  Université de Liège - ULiège > Département des sciences de la motricité > Département des sciences de la motricité
Drion, Pierre ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > GIGA-R:Méth. expér.des anim. de labo et éth. en expér. anim.
Libertiaux, Vincent
Colige, Alain ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Laboratoire des tissus conjonctifs
HOFFMANN, Audrey ;  Centre Hospitalier Universitaire de Liège - CHU > Dermatologie
Nusgens, Betty ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Département des sciences biomédicales et précliniques
Forthomme, Bénédicte ;  Université de Liège - ULiège > Département des sciences de la motricité > Rééducation du membre supérieur
Besançon, Benoït
LE GOFF, Caroline  ;  Centre Hospitalier Universitaire de Liège - CHU > Chimie médicale
Franzen, Rachelle  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Neuro-anatomie
Defraigne, Jean-Olivier ;  Université de Liège - ULiège > Département des sciences cliniques > Chirurgie cardio-vasculaire et thoracique
Cescotto, Serge ;  Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Rickert, Markus
Crielaard, Jean-Michel ;  Université de Liège - ULiège > Département des sciences de la motricité > Evaluation et entraînement des aptitudes physiques
Croisier, Jean-Louis ;  Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie générale et réadaptation
More authors (5 more) Less
Language :
English
Title :
Eccentric training improves tendon biomechanical properties: a rat model
Publication date :
January 2013
Journal title :
Journal of Orthopaedic Research
ISSN :
0736-0266
eISSN :
1554-527X
Publisher :
Wiley, Hoboken, United States - New Jersey
Volume :
31
Issue :
1
Pages :
119-124
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 09 July 2012

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