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.
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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 |
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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 |
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Dernière modification: | 10 oct. 2017 13:29 |
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