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Figure 2 | Theoretical Biology and Medical Modelling

Figure 2

From: The relationship between twitch depression and twitch fade during neuromuscular block produced by vecuronium: correlation with the release of acetylcholine

Figure 2

Upper panel: The ratios of the fourth to the first twitch (T4/T1) as a function of the first twitch (T1) for various doses (μg·kg-1) of vecuronium (individual subjects) during the onset of neuromuscular block. At the moment of vecuronium injection, T1 = 1.0 and T4/T1 = 1.0. Lower panel: T4/T1 ratio (mean ± SD) as a function of T1 (at T1 = 0.25, 0.5, 0.75, and 0.9) for all doses of vecuronium during the offset of neuromuscular block. The number of subjects is indicated by n. The temporal sequence of observations starts at the lowest value of T1 and progresses toward higher values of T1. The label for the X-axis is identical to the label of the X-axis in the upper panel.

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