Atteintes de la coiffe des rotateurs: déficits moteurs et réadaptation.

Chercheurs boursiers - Junior 1 | Concours 2012-2013

Jean-Sébastien Roy

Centre interdisciplinaire de recherche en réadaptation et intégration sociale de l'IRDPQ (CIRRIS)


Domaine : Appareil locomoteur et arthrite

Shoulder impingement syndrome (SIS) is described as a mechanical compression of the rotator cuff tendons during arm elevation. Movement control deficits have been targeted as one of the main factors explaining the level of shoulder disability in patients with SIS. My research program aims at improving the evaluation and intervention following SIS by gaining a better understanding of movement control deficits associated with SIS. The first project will evaluate the influence of the central nervous system on the movement deficits observed in individuals with SIS. Cortical motor maps of one rotator cuff muscle (infraspinatus) will be acquired using transcranial magnetic stimulation on 20 subjects with and 20 without SIS. Transcranial magnetic stimulation allows the generation of functional brain mapping. It will allow us to determine if the cortical organization is changed in patients with SIS. The second project will determine if an ultrasonographic measure of the distance between two bones of the shoulder (acromiohumeral distance) can be used to predict the effectiveness of rehabilitation. The ultrasonographic measure of the acromiohumeral distance and the level of disability of 66 subjects with SIS will be evaluated before and after a 6-week rehabilitation program. Thereafter, we will determine if the acromiohumeral distance obtained before the rehabilitation program can predict the functional improvement observed following the program. The third project will compare the effectiveness of two rehabilitation programs (movement training and conventional rehabilitation) for improving functional level. Fifty-six subjects with SIS will be assigned to one of the two programs. The level of disability will be evaluated before and after the rehabilitation program. Thereafter, we will conclude on the effectiveness of these programs. We think that these projects will provide a better understanding of the factors explaining the deficits associated with SIS, and lead to the development of more efficient clinical approaches.