Figure 2 | Scientific Reports

Figure 2

From: Precontractile optical response during excitation-contraction in human muscle revealed by non-invasive high-speed spatiotemporal NIR measurement

Figure 2

Precontractile optical response and electrical response to transcutaneous electrostimulation coincides in time. EMG and optical timing in six different subjects: (a,c) Subject 6, (b,d) Subject 3, (e,g) Subject 4, (f,h) Subject 2, (i,k) Subject 8, (j,l) Subject 10. In all subfigures O denotes onset, P denotes time to peak and ZC denotes zero-crossing of signals from the middle sensing elements (as indicated in Fig. 1). The solid lines and shaded areas indicate the means and standard deviations of 25 consecutive stimuli respectively.

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