Comparisons between intracortical inhibition and facilitation (A) and long interval inhibition with silent period duration (B).

<p>A. In the biceps, the amount of short interval intracortical inhibition (SICI ratio %pre-fatigue baseline) increased during fatigue task performance indicating a <i>reduction</i> in inhibition while the amount of intracortical facilitation (ICF ratio %pre-fatigue baseline) remained unchanged (*<i>p</i> = 0.01); however, there were no differences found in the brachioradialis for either variable (<i>p</i>>0.05). Values were pooled across tasks for clarity as there were no differences found by task. B. Comparison of the ratio for long interval inhibition (LII as %pre-fatigue baseline) and the duration of the silent period (SP duration as %pre-fatigue baseline) did not demonstrate significance when compared by task, time and stimulation protocol suggesting no change in composite corticospinal inhibition. Values were pooled across tasks for clarity.