A Novel Kinematic Gait Parameter-Based Vibrotactile Cue for Freezing of Gait Mitigation among Parkinson's Patients: A Pilot Study.

IF 2.4 3区计算机科学 Q2 COMPUTER SCIENCE, CYBERNETICS IEEE Transactions on Haptics Pub Date : 2024-03-25 DOI:10.1109/TOH.2024.3378917

Rohan Khatavkar, Ashutosh Tiwari, Priyanka Bhat, Achal Kumar Srivastava, S Senthil Kumaran, Deepak Joshi

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Abstract

Auditory and visual cues have been efficacious in laboratory-based freezing of gait (FoG) mitigation in Parkinson's disease (PD). However, real-life applications of these cues are restricted due to inconvenience to the users. Closed-loop vibrotactile cues based on temporal gait events have overcome the shortcomings of auditory and visual cueing. However, kinematic gait parameter-driven vibrotactile cueing has not been explored yet. Kinematic gait parameter-driven cueing is more effective than temporal cueing, according to FoG pathophysiology studies. Therefore, we developed and pilot-tested a novel cueing scheme in which the foot-to-ground angle at heel strike (FGA_HS) is estimated using indigenous instrumented shoes to drive vibrotactile cueing. Ten PD freezers underwent a 6-meter timed walk test in the off-medication state with and without the cue and after medication without the cue. The proposed system potentially mitigated FoG, quantified by a reduction in the ratio of time spent freezing to the total walking time and the number of FoGs. The FoG mitigation potential of the cue was further supported by increased anteroposterior center of pressure progression and FGA_HS. With a future comprehensive validation in a larger number of participants, the novel cue could likely be used in practice and commercialized.

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基于运动步态参数的新型振动触觉线索用于缓解帕金森患者的步态冻结：一项试点研究

在基于实验室的帕金森病（PD）步态冻结（FoG）缓解中，听觉和视觉提示非常有效。然而，由于给使用者带来不便，这些提示在现实生活中的应用受到了限制。基于时间步态事件的闭环振动触觉线索克服了听觉和视觉线索的缺点。然而，运动步态参数驱动的振动触觉提示尚未得到探索。根据 FoG 病理生理学研究，运动步态参数驱动的提示比时间提示更有效。因此，我们开发并试点测试了一种新颖的提示方案，即使用本土仪器鞋估算脚跟着地时的脚与地夹角（FGA_HS）来驱动振动触觉提示。十名患有帕金森氏症的冷冻患者在未服药状态下接受了 6 米定时步行测试，在服药后有无提示，以及服药后有无提示。所提议的系统可减轻 FoG，具体表现为减少冻结时间与总步行时间的比率以及 FoG 的次数。前胸中心压力进展和 FGA_HS 的增加进一步证明了该提示系统具有减轻 FoG 的潜力。如果将来在更多参与者中进行全面验证，这种新型提示很可能会被用于实践并实现商业化。

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来源期刊

IEEE Transactions on Haptics COMPUTER SCIENCE, CYBERNETICS-

CiteScore

5.90

自引率

13.80%

发文量

109

审稿时长

>12 weeks

期刊介绍： IEEE Transactions on Haptics (ToH) is a scholarly archival journal that addresses the science, technology, and applications associated with information acquisition and object manipulation through touch. Haptic interactions relevant to this journal include all aspects of manual exploration and manipulation of objects by humans, machines and interactions between the two, performed in real, virtual, teleoperated or networked environments. Research areas of relevance to this publication include, but are not limited to, the following topics: Human haptic and multi-sensory perception and action, Aspects of motor control that explicitly pertain to human haptics, Haptic interactions via passive or active tools and machines, Devices that sense, enable, or create haptic interactions locally or at a distance, Haptic rendering and its association with graphic and auditory rendering in virtual reality, Algorithms, controls, and dynamics of haptic devices, users, and interactions between the two, Human-machine performance and safety with haptic feedback, Haptics in the context of human-computer interactions, Systems and networks using haptic devices and interactions, including multi-modal feedback, Application of the above, for example in areas such as education, rehabilitation, medicine, computer-aided design, skills training, computer games, driver controls, simulation, and visualization.