LiveZilla Live Chat Software

Constellation, le dépôt institutionnel de l'Université du Québec à Chicoutimi

Effect of pelvic stabilization and hip position on trunk extensor activity during back extension exercises on a roman chair

da Silva Rubens Alexandre, Larivière Christian, Arsenault Bertrand, Nadeau Sylvie et Plamondon André. (2009). Effect of pelvic stabilization and hip position on trunk extensor activity during back extension exercises on a roman chair. Journal of Rehabilitation Medicine, 41, p. 136-142.

[img]
Prévisualisation
PDF - Version publiée
Disponible sous licence Creative Commons Attribution Non-commercial.

619kB

URL officielle: http://dx.doi.org/doi:10.2340/16501977-0305

Résumé

Objective: To assess the effect of pelvic stabilization and hip position on the electromyographic activity of trunk extensors during Roman chair exercise. A secondary objective was to compare genders. Design: Repeated measures. Subjects: Eleven men and 11 women volunteers.

Methods: Five trunk flexion-extension cycles for 3 Roman chair conditions: (i) pelvis unrestrained; (ii) pelvis restrained; and (iii) hip at 40° flexion. Electromyographic signals were recorded on the back muscles, as well as on the gluteus maximus and biceps femoris. The percentage of electro¬myographic amplitude relative to the maximal activity was used to assess the level of muscular activation of each muscle group across the exercises.

Results: For both genders, the Roman chair conditions did not influence the activity of the back and gluteus muscles. The hip-at-40°-flexion condition significantly reduced the activity of the biceps femoris (average of 4–18%) relative to the other 2 conditions. Gender differences were observed on the activity of the biceps femoris in all Roman chair conditions.

Conclusion: The hip-at-40°-flexion condition would allow the Roman chair exercise to train the targeted back muscles more specifically by overloading them over a longer duration in order to induce physiological changes.

Type de document:Article publié dans une revue avec comité d'évaluation
Volume:41
Pages:p. 136-142
Version évaluée par les pairs:Oui
Date:2009
Sujets:Sciences de la santé
Sciences de la santé > Sciences de l'activité physique et réadaptation
Sciences de la santé > Sciences de l'activité physique et réadaptation > Physiothérapie
Département, module, service et unité de recherche:Départements et modules > Département des sciences de la santé > Unité d'enseignement en physiothérapie
Mots-clés:Electromyography, électromyographie, back muscles, muscles du dos, rehabilitation, réadaptation, specificity, spécificité, gender, genre.
Déposé le:02 oct. 2017 19:25
Dernière modification:10 oct. 2017 13:29
Afficher les statistiques de telechargements

Éditer le document (administrateurs uniquement)

Creative Commons LicenseSauf indication contraire, les documents archivés dans Constellation sont rendus disponibles selon les termes de la licence Creative Commons "Paternité, pas d'utilisation commerciale, pas de modification" 2.5 Canada.

Bibliothèque Paul-Émile-Boulet, UQAC
555, boulevard de l'Université
Chicoutimi (Québec)  CANADA G7H 2B1
418 545-5011, poste 5630