Modulating Effects of Whole-body Vibration on Cortical Activity and Gait Function in Chronic Stroke Patients

Abstract

Whole-body vibration exercise (WBVe) can provide proper somatosensory stimulation and
improve muscle strength in stroke patients. This study investigated the effects of WBVe on
gait function and cortical activity in patients with chronic stroke. Thirty stroke patients were
randomly assigned to either the WBVe or the control group. The WBVe group received the
vibration in a half-squat position for 5 minutes at an intensity of 20 Hz. The control group
kept the same posture but did not receive the vibration. Cortical activity was investigated
using functional near-infrared spectroscopy (fNIRS). Gait function was assessed by a 10-m
walk test (10MWT), a timed up and go (TUG) test, a Fugl-Meyer Assessment, and a Tinetti
Performance-Oriented Mobility Assessment (TPOMA). In group analysis of the fNIRS
data, oxygenated hemoglobin concentration was significantly increased in the ipsilesional
supplementary motor area, bilateral sensorimotor cortex, and contralesional prefrontal
cortex in the WBVe group compared to the control group (p < 0.05). Functional assessment demonstrated a significant interaction between time and group for the 10MWT and TUG test, suggesting that the WBVe group demonstrated meaningful improvement after intervention (p < 0.05). These results suggested that WBVe modulated the cerebral cortical activities and resulted in improvement of gait function in chronic stroke patients

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Autor: Ahee Lee, Heegoo Kim, Jinuk Kim, Dong-Sung Choi, Jae Hwan Jung, Jungsoo Lee, Yun-Hee Kim

Organisation: Department of Physical and Rehabilitation Medicine, Center for Prevention and Rehabilitation, Heart Vascular Stroke Institute, Samsung Medical Center

Jahr: 2020

GID: 5521

Erstellt am: 29.07.2021

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