Effect of High-Frequency rTMS combined with bilateral arm training on brain functional network in patients with chronic stroke: An fNIRS study.
Brain Res
; 1809: 148357, 2023 06 15.
Article
de En
| MEDLINE
| ID: mdl-37011721
ABSTRACT
OBJECTIVE:
Neurological evidence for the combinational intervention coupling rTMS with motor training for stroke rehabilitation remains limited. This study aimed to investigate the effects of rTMS combined with bilateral arm training (BAT) on the brain functional reorganization in patients with chronic stroke via functional near-infrared spectroscopy (fNIRS).METHODS:
Fifteen stroke patients and fifteen age-matched healthy participants were enrolled and underwent single BAT session (s-BAT) and BAT immediately after 5-Hz rTMS over the ipsilesional M1 (rTMS-BAT), measured cerebral haemodynamics by fNIRS. Functional connectivity (FC), the clustering coefficient (Ccoef), and local efficiency (Eloc) were applied to evaluate the functional response to the training paradigms.RESULTS:
The differences in FC responses to the two training paradigms were more pronounced in stroke patients than in healthy controls. In the resting state, stroke patients exhibited significantly lower FC than controls in both hemispheres. rTMS-BAT induced no significant difference in FC between groups. Compared to the resting state, rTMS-BAT induced significant decreases in Ccoef and Eloc of the contralesional M1 and significant increases in Eloc of the ipsilesional M1 in stroke patients. Additionally, these above two network metrics of the ipsilesional motor area were significantly positively correlated with the motor function of stroke patients.CONCLUSIONS:
These results suggest that the rTMS-BAT paradigm had additional effects on task-dependent brain functional reorganization. The engagement of the ipsilesional motor area in the functional network was associated with the motor impairment severity of stroke patients. fNIRS-based assessments may provide information about the neural mechanisms underlying combination interventions for stroke rehabilitation.Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Accident vasculaire cérébral
/
Réadaptation après un accident vasculaire cérébral
Limites:
Humans
Langue:
En
Journal:
Brain Res
Année:
2023
Type de document:
Article