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Brain Neurorehabil., 2020; 13(2: e12

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

Year: 2020

Ahee Lee, Heegoo Kim, Jinuk Kim, Dong-Sung Choi, Jae Hwan Jung, Jungsoo Lee, Yun-Hee Kim
Department of Physical and Rehabilitation Medicine, Center for Prevention and Rehabilitation, Heart Vascular Stroke Institute, Samsung Medical Center


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

GID: 5521; Last update: 29.07.2021
More information: Original Article