Development of a Wearable Wireless Sensing Device for Characterization of Hand Tremors Through Vibration Frequency Analysis

Abstract Purpose To monitor the progression of diseases such as Parkinson’s disease (PD) or essential tremor (ET), there is a growing interest in understanding their side effects and continuously monitoring deterioration progress patients’ health conditions. The objective this study was to investigate feasibility wearable device constructed from compact MEMS for robust detection upper limb using three different storage techniques. Method Four subjects (2 PD 2 ET) with varying stages treatment willingly provided offline, online, live modes data low-cost, miniaturized accelerometer microelectromechanical device. Results results demonstrated differences voluntary non-voluntary characteristics various activities distinct separation between them vibration spectrum at limit Hz. Online best alternatives continuous in-home tracking combined extensive post-processing techniques detect segments. findings also highlighted emergence noticeable peaks, range 3 8 Hz, PD’s frequency response, compared ET case, where broadband behavior dominates. Conclusion possibility dynamic tuned mass damper dominant peaks be canceled opens opportunities passive suppression.