Firing Times Bar Plot
Shown below are two Bar Plots. The heavy, black line is the force trace
of the subject; the scale is shown on the right Y axis. The colored
vertical bars occur at the time when each Motor Unit fired.
The first Bar Plot shows an entire (almost) 50% Maximal Voluntary
Contraction (MVC) force trace contraction. The second Bar Plot shows a one
second portion of the same trace. This expanded view clearly shows the
different firing rates of each Motor Unit.

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