Carole Fortin1, Jean-Philippe Pialasse2, Inga Sophia Knoth3, Sarah Lippé4, Cyril Duclos5, Martin Simoneau6. 1. École de réadaptation, Faculté de médecine, Université de Montréal, Montréal, Québec, Canada; Centre de recherche, CHU Sainte-Justine, Montréal, Québec, Canada. Electronic address: carole.fortin@umontreal.ca. 2. École de réadaptation, Faculté de médecine, Université de Montréal, Montréal, Québec, Canada; Centre de recherche, CHU Sainte-Justine, Montréal, Québec, Canada. 3. Centre de recherche, CHU Sainte-Justine, Montréal, Québec, Canada. 4. Centre de recherche, CHU Sainte-Justine, Montréal, Québec, Canada; Département de psychologie, Université de Montréal, Montréal, Québec, Canada. 5. École de réadaptation, Faculté de médecine, Université de Montréal, Montréal, Québec, Canada; Centre de recherche interdisciplinaire en réadaptation du Montréal métropolitain (CRIR), Institut de Réadaptation Gingras-Lindsay-de-Montréal, Montréal, Québec, Canada. 6. Département de kinésiologie, Faculté de médecine, Université Laval, Québec, Québec, Canada; Centre interdisciplinaire de recherche en réadaptation et intégration sociale (CIRRIS), Québec, Québec, Canada.
Abstract
OBJECTIVE: This study aims at examining the cortical dynamics of sensorimotor information processing related to balance control in participants with adolescent idiopathic scoliosis (AIS) and in age-matched controls (CTL). METHODS: Cortical dynamics during standing balance control were assessed in 13 girls with AIS and 13 age-matched controls using electroencephalography. Time-frequency analysis were used to determine frequency power during ankle proprioception alteration (ankle tendons co-vibration interval) or reintegration of ankle proprioception (post-vibration interval) with or without vision. RESULTS: Balance control did not differ between groups. In the co-vibration interval, a significant suppression in alpha (8-12 Hz) and beta (13-30 Hz) band power and a significant increase in theta (4-7 Hz) band power were found respectively in the vision and non-vision condition in the AIS group compared to the CTL group. In the post-vibration interval, significant suppressions in beta (13-30 Hz) and gamma (30-50 Hz) band power were observed in the AIS group in the non-vision condition. CONCLUSION: Participants with AIS showed brain oscillations differences compared to CTL in the sensorimotor cortex while controlling their balance in various sensory conditions. SIGNIFICANCE: Future study using evaluation of cortical dynamics could serve documenting whether rehabilitation programs have an effect on sensorimotor function in AIS.
OBJECTIVE: This study aims at examining the cortical dynamics of sensorimotor information processing related to balance control in participants with adolescent idiopathic scoliosis (AIS) and in age-matched controls (CTL). METHODS: Cortical dynamics during standing balance control were assessed in 13 girls with AIS and 13 age-matched controls using electroencephalography. Time-frequency analysis were used to determine frequency power during ankle proprioception alteration (ankle tendons co-vibration interval) or reintegration of ankle proprioception (post-vibration interval) with or without vision. RESULTS: Balance control did not differ between groups. In the co-vibration interval, a significant suppression in alpha (8-12 Hz) and beta (13-30 Hz) band power and a significant increase in theta (4-7 Hz) band power were found respectively in the vision and non-vision condition in the AIS group compared to the CTL group. In the post-vibration interval, significant suppressions in beta (13-30 Hz) and gamma (30-50 Hz) band power were observed in the AIS group in the non-vision condition. CONCLUSION:Participants with AIS showed brain oscillations differences compared to CTL in the sensorimotor cortex while controlling their balance in various sensory conditions. SIGNIFICANCE: Future study using evaluation of cortical dynamics could serve documenting whether rehabilitation programs have an effect on sensorimotor function in AIS.
Authors: Aneta Dąbrowska; Marzena A Olszewska-Karaban; Anna K Permoda-Białozorczyk; Dominika A Szalewska Journal: Biomed Res Int Date: 2020-07-04 Impact factor: 3.411