Power Spectral Analyses of Index Finger Skin Blood Perfusion in Carpal Tunnel Syndrome and Diabetic Polyneuropathy
Figure 2
An example of original recordings. (a) Local blood perfusion from laser Doppler flowmetry, (b) a switch signal indicating the result of the Phalen test, (c) skin temperature of the index finger pad, and (d) wrist flexion/extension angle.
