Table 2 Summary of type of technology and main targeted tremor discussed in Chapter 2
From: Upper limb intention tremor assessment: opportunities and challenges in wearable technology
Section | Type | Main targeted tremor |
|---|---|---|
2.1 Algorithms | Fourier transform (FFT), power spectral analysis (PSD), wavelet decomposition (DWT), and Hilbert-Huang transform (HHT) | All types |
2.2 Tool based | Smart pens and manipulanda with embedded IMUs and force sensors | Task-specific tremor |
2.3 Task based | Digitized drawings such as Archimedes Spirals, and different types of shapes. Smartphone games where the subject maintain objects in equilibrium | Task-specific and intention tremor |
2.4 Physiology based | Muscle activity using EMG and MMG | Rest and postural tremor, discrimination between ET and PD |
2.4 Physiology based | Brain activity using EEG | Rest and postural tremor |
2.5 Movement based | Accelerometers, gyroscopes, magnetometers and IMUs (sensor fusion) | Rest, postural, and intention tremor |
2.6 Movement based | Cameras | Rest, postural, and intention tremor |