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. 2021 Oct 15;12:706610. doi: 10.3389/fneur.2021.706610

Figure 3.

Figure 3

Example of NeuroFlexor force trace and electromyography signal before and after stimulation with EXOPULSE Mollii. (A) NeuroFlexor hand module resistance profile during the fast velocity movement, before and after 60 min of electrical stimulation with EXOPULSE Mollii at 30 Hz. Blue trace shows the angle of wrist movement, from 20° of palmar flexion to 30° of extension. Bright red trace shows resisting force to the passive stretch and the ticker dark red line shows resistance profile when the device ran without hand. Arrow shows the late resistance toward the end of the movement (P2 time point). Values of neural component (NC) are reported in Newton, N. (B) Electromyography (EMG) signal of the flexor carpi radialis recorded synchronized with the NeuroFlexor assessment from onset (i.e., 20° of flexion) until full extension of wrist (offset, i.e., 30°). The amplitude of EMG signal is reported in mV. After stimulation, a decreased NC was accompanied by a reduced EMG amplitude (i.e., smaller burst in EMG signal in green).