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Auditory Cues on Postural Control in Parkinson's Disease: A Pilot Study

Conference: The 19th International Congress of Parkinson’s Disease and Movement Disorders
Abstract: Objective: To evaluate the effect of auditory cues toward postural control in patients with Parkinson's disease (PD). Background: Auditory cues have been proved to be one of rehabilitation strategies for PD [1]. Most of Parkinson's Disease patients present postural instabilities regarding the severity of the disease [2, 3]. Rhythmic Auditory Stimulation (RAS) has been justified to be a standardized neurological motor therapy (NMTs) in PD, which cue-ing benefits may be associated with the activation of cerebellum-thalamic-cortical circuitry [4]. A potential method to stimulate the putamen that might help regulate PD brain's circuits could be providing music as a rhythmical cue [4]. A distinct manifestation in PD is also the arm swing reduction [5] which limits the capability of maintaining balance. It is rare to explore the static standing balance in Parkinson's Disease. Methods: 5 idiopathic PD patients (5 female) aged 72.6 ± 2.51 years, duration of the disease 15 ± 1.22 years (mean ± SD), H&Y 2.5-3 participated in this study. They were recruited from Yawata Medical Center, Ishikawa, Japan in June and November, 2014. The subjects were instructed to stand on the balance platform (Nintendo Wii Fit) and swing arm; Alternation (Alt) and Synchronization (Syn) in 3 scenarios; with no auditory cues (AC), with AC 5% increased and with AC 5 % decreased. The data were analyzed by Wilcoxon Signed Ranks Test and the dimensional clustering method [6] on MATLAB. Results: Tempo at 95% improved area, RMS and Min ML in Alternation, and decreased the path length in rest 2. Tempo at 105% decreased area and RMS in rest 2 statistically significant. A case with H&Y stage 3 showed poorer postural control in both Antero-Posterior (AP) and Medio-Lateral (ML) directions. Most cases presented the higher Center of Pressure (CoP) displacement in ML direction. AC with arm swing regulated the pattern of CoP trajectories. Conclusions: Auditory cues with arm swing - Alternation improved postural control in the PD patients. This concept might be considered clinically to be a rehabilitation program for Parkinson's disease (PD) to improve standing balance. It is a need to enlarge the sample size and develop more rehabilitation programs for improving balance in PD.
Listed In: Physical Therapy, Posturography,
Tagged In: Arm Swing, Auditory Cues, Parkinson's Disease, Postural control, Rehabilitation

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