Fig. 1: Flow chart illustrating the hierarchical approach for detection and assessment of resting tremor and hand bradykinesia using accelerometer data from a wrist-worn device. | npj Digital Medicine

Fig. 1: Flow chart illustrating the hierarchical approach for detection and assessment of resting tremor and hand bradykinesia using accelerometer data from a wrist-worn device.

From: Development of digital biomarkers for resting tremor and bradykinesia using a wrist-worn wearable device

Fig. 1

This approach utilizes context detection (hand movement and gait) to identify periods of interest from raw sensor data and subsequently performs detection and assessment of motor symptoms (tremor and bradykinesia). Tremor is assessed when the hand is at rest and bradykinesia is assessed during periods of hand movement that are not due to gait.

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