Institut Régional de Formation aux Métiers de Rééducation et de Réadaptation des Pays de la Loire.
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Auteur Marie-Hélène Milot
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Changes in transcranial magnetic stimulation outcome measures in response to upper-limb physical training in stroke: A systematic review of randomized controlled trials / Louis-David Beaulieu in Annals of physical and rehabilitation medicine, Vol. 61 n° 4 (July 2018)
[article] Changes in transcranial magnetic stimulation outcome measures in response to upper-limb physical training in stroke: A systematic review of randomized controlled trials [texte imprimé] / Louis-David Beaulieu, Auteur ; Marie-Hélène Milot, Auteur . - 2018 . - p. 224-234.
Langues : Anglais (eng) Français (fre)
in Annals of physical and rehabilitation medicine > Vol. 61 n° 4 (July 2018) . - p. 224-234
Catégories : PATHOLOGIE
INFORMATION & COMMUNICATION
Revue de littérature
Tags : Transcranial magnetic stimulation Stroke Upper-limb physical training Systematic review Brain plasticity Clinical outcome Résumé : Background: Physical training is known to be an effective intervention to improve sensorimotor impairments after stroke. However, the link between brain plastic changes, assessed by transcranial magnetic stimulation (TMS), and sensorimotor recovery in response to physical training is still misunderstood. We systematically reviewed reports of randomized controlled trials (RCTs) involving the use of TMS over the primary motor cortex (M1) to probe brain plasticity after upper-limb physical training interventions in people with stroke.
Methods: We searched 5 databases for articles published up to October 2016, with additional studies identified by hand-searching. RCTs had to investigate pre/post-intervention changes in at least one TMS outcome measure. Two independent raters assessed the eligibility of potential studies and reviewed the selected articles quality by using 2 critical appraisal scales.
Results: In total, 14 reports of RCTs (pooled participants=358; mean 26±12 per study) met the selection criteria. Overall, 11 studies detected plastic changes with TMS in the presence of clinical improvements after training, and these changes were more often detected in the affected hemisphere by using map area and motor evoked potential (MEP) latency outcome measures. Plastic changes mostly pointed to increased M1/corticospinal excitability and potential interhemispheric rebalancing of M1 excitability, despite sometimes controversial results among studies. Also, the strength of the review observations was affected by heterogeneous TMS methods and upper-limb interventions across studies as well as several sources of bias within the selected studies.
Conclusions: The current evidence encourages the use of TMS outcome measures, especially MEP latency and map area to investigate plastic changes in the brain after upper-limb physical training post-stroke. However, more studies involving rigorous and standardized TMS procedures are needed to validate these observations.
En ligne : http://www.em-consulte.com/produit/rehab Permalink : [article]Pourquoi les personnes hémiparétiques présentent-elles de l'asymétrie lors de l'exécution de tâches fonctionnelles ? / Sylvie Nadeau in Kinésithérapie, la revue, N° 109-110 janvier-février 2011 (janvier-février 2011)
[article] Pourquoi les personnes hémiparétiques présentent-elles de l'asymétrie lors de l'exécution de tâches fonctionnelles ? [texte imprimé] / Sylvie Nadeau, Auteur ; Marie-Hélène Milot, Auteur ; Anabèle Brière, Auteur . - 2011 . - p. 53-54.
Langues : Français (fre)
in Kinésithérapie, la revue > N° 109-110 janvier-février 2011 (janvier-février 2011) . - p. 53-54
Catégories : PATHOLOGIE
Note de contenu : JFK 2011 En ligne : http://www.em-consulte.com/produit/kine Permalink : [article]Transcranial direct current stimulation over multiple days enhances motor performance of a grip task / Julie Fan in Annals of physical and rehabilitation medicine, Vol. 60 n° 5 (September 2017)
[article] Transcranial direct current stimulation over multiple days enhances motor performance of a grip task [texte imprimé] / Julie Fan, Auteur ; Julien Voisin, Auteur ; Marie-Hélène Milot, Auteur . - 2017 . - p. 329-333.
Langues : Anglais (eng) Français (fre)
in Annals of physical and rehabilitation medicine > Vol. 60 n° 5 (September 2017) . - p. 329-333
Catégories : MOTS OUTILS
Performance , Stimulation
Thesaurus Santé Publique
Tags : Motor performance Neurostimulation Primary motor cortex Grip control Neurorehabilitation Résumé : Background: Recovery of handgrip is critical after stroke since it is positively related to upper limb function. To boost motor recovery, transcranial direct current stimulation (tDCS) is a promising, non-invasive brain stimulation technique for the rehabilitation of persons with stroke. When applied over the primary motor cortex (M1), tDCS has been shown to modulate neural processes involved in motor learning. However, no studies have looked at the impact of tDCS on the learning of a grip task in both stroke and healthy individuals.
Objective: To assess the use of tDCS over multiple days to promote motor learning of a grip task using a learning paradigm involving a speed-accuracy tradeoff in healthy individuals.
Methods: In a double-blinded experiment, 30 right-handed subjects (mean age: 22.1±3.3 years) participated in the study and were randomly assigned to an anodal (n =15) or sham (n =15) stimulation group. First, subjects performed the grip task with their dominant hand while following the pace of a metronome. Afterwards, subjects trained on the task, at their own pace, over 5 consecutive days while receiving sham or anodal tDCS over M1. After training, subjects performed de novo the metronome-assisted task. The change in performance between the pre and post metronome-assisted task was used to assess the impact of the grip task and tDCS on learning.
Results: Anodal tDCS over M1 had a significant effect on the speed-accuracy tradeoff function. The anodal tDCS group showed significantly greater improvement in performance (39.28±15.92%) than the sham tDCS group (24.06±16.35%) on the metronome-assisted task, t (28)=2.583, P =0.015 (effect size d =0.94).
Conclusions: Anodal tDCS is effective in promoting grip motor learning in healthy individuals. Further studies are warranted to test its potential use for the rehabilitation of fine motor skills in stroke patients.
En ligne : http://www.em-consulte.com/produit/rehab Permalink : [article]