Analysis and Suppression of Tremor During Grasp Using Ultrasound Imaging and Electrical Stimulation

Completed · Not applicable

Conditions studied: Parkinson Disease, Essential Tremor

In brief

Individuals experiencing tremors face difficulty performing activities of daily living caused by involuntary oscillation of the muscles in the hands and arms. Current solutions to help suppress tremors include medication, surgery, assistive devices and lifestyle change. However, each of these has a drawback of its own including cost and unwanted side effects. Aside from the solutions listed, it has been shown that functional electrical stimulation (FES) is a possible solution to help suppress tremor. Additionally, FES can be combined with different technologies including accelerometers, gyroscopes and motion capture to develop a closed loop system for tremor suppression. However, this has drawbacks including signal interference and the need for multiple sensor to fully classify the tremor. Ultrasound imaging solves some of these issues because it can provide a direct visualization of hand muscles that contribute to tremor. This study will focus on detecting characterizing and differentiating tremors from voluntary hand motion using ultrasound imaging. The results obtained from this study will help design FES-based tremor-suppression techniques in the future. This study will target both subjects with different tremor disorders and able bodied subjects.

Key facts

Study ID
NCT05308368
Run by
North Carolina State University
People needed
12
Starts
2021-04-11
Expected to finish
2025-07-31
Last updated by the study team
2025-10-27

Who can join

Age: 18 and older, up to 90. Sex: any. Healthy volunteers: accepted.

Where it is running

Full record on ClinicalTrials.gov

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