Avaliação da satisfação de indivíduos com e sem doença de Parkinson em relação a um sistema de biofeedback vibratório

Abstract

Introduction: Parkinson's Disease (PD) is a progressive neurological condition, and its motor manifestations—such as bradykinesia, resting tremor, muscular rigidity, and postural instability—directly compromise functional capacity and independence, thereby increasing the risk of falls. Technological advancements may contribute both to the early diagnosis of PD and to continuous monitoring, aiming to enable increasingly personalized and optimized treatment strategies. Among the various technological approaches, Vibratory Biofeedback Systems (VBS) have shown promise in enhancing gait and postural performance. Objective: The objective of this study was to evaluate the satisfaction of individuals with and without Parkinson’s Disease (PD) regarding the use of a Vibratory Biofeedback System (VBS). Materials and Methods: This was a cross-sectional, comparative observational study with matched controls, aimed at testing a device consisting of insoles equipped with plantar pressure (PP) sensors and vibratory actuators (VBS). The system was developed to provide tactile feedback based on the magnitude of plantar pressure, thereby contributing to postural control. Testing was conducted with participants both with and without PD (control group) at the Edmond and Lily Safra International Institute of Neurosciences (IIN-ELS). Usability, assessed in terms of user satisfaction with the device, was measured using a modified version of the Quebec User Evaluation of Satisfaction with Assistive Technology (B-QUEST), which addressed aspects such as dimensions, comfort, safety, durability, and ease of use. Results: A total of five female participants, three with PD and two controls, aged between 42 and 62 years, took part in the study. The results of the modified Quebec User Evaluation of Satisfaction with Assistive Technology (B-QUEST) revealed high levels of satisfaction with the use of the device across both groups, with particular emphasis on comfort, safety, and effectiveness, indicating a favorable acceptance of the system among users. Conclusion: The positive user perception in terms of satisfaction highlights the potential of the VBS as a complementary assistive technology for individuals with PD, representing a promising tool for both clinical and home-based applications. Nevertheless, further studies with larger sample sizes are recommended to validate these findings