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American Journal of Physical Medicine & Rehabilitation:
doi: 10.1097/PHM.0000000000000042
Original Research Articles

Acute Effects of Whole-Body Vibration on the Motor Function of Patients with Stroke: A Randomized Clinical Trial

Silva, Adriana Teresa MSc; Dias, Miqueline Pivoto Faria PT; Calixto, Ruanito Jr PT; Carone, Antonio Luis MSc; Martinez, Beatriz Bertolaccini PhD; Silva, Andreia Maria PhD; Honorato, Donizeti Cesar PhD

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Objective: The aim of this study was to investigate the acute effects of whole-body vibration on the motor function of patients with stroke.

Design: The present investigation was a randomized clinical trial studying 43 individuals with hemiparesis after stroke, with 33 subjects allocated to the intervention group and 10 subjects allocated to the control group. The intervention group was subjected to one session of vibration therapy (frequency of 50 Hz and amplitude of 2 mm) comprising four 1-min series with 1-min rest intervals between series in three body positions: bipedal stances with the knees flexed to 30 degrees and 90 degrees and a unipedal stance on the paretic limb. The analytical tests were as follows: simultaneous electromyography of the affected and unaffected tibialis anterior and rectus femoris muscles bilaterally in voluntary isometric contraction; the Six-Minute Walk Test; the Stair-Climb Test; and the Timed Get-Up-and-Go Test. The data were analyzed by independent and paired t tests and by analysis of covariance.

Results: There was no evidence of effects on the group and time interaction relative to variables affected side rectus femoris, unaffected side rectus femoris, affected side tibialis anterior, unaffected side tibialis anterior, and the Stair-Climb Test (P > 0.05). There was evidence of effects on the group interaction relative to variables Six-Minute Walk Test and Timed Get-Up-and-Go Test (P < 0.05).

Conclusions: Whole-body vibration contributed little to improve the functional levels of stroke patients.

© 2014 by Lippincott Williams & Wilkins


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