Dynamic Variability of Isometric Action Tremor in Precision Pinching
Figure 3
Example profile of peak tremor power fluctuations in the 5–7 Hz range. The data plotted represent the values from the crest of the peaks seen in the surface plot of Figure 2 as the 4-second moving window is advanced: (a) thumb peak power profile; (b) index finger peak profile. Notice that the regions of oscillatory behaviour are flanking a central region of less variable power magnitude for the index finger.
