Statistical analysis
RECRUITMENT
For each subject, H and M waves amplitudes were normalized with reference to the amplitude of the CMAP at the corresponding evaluation time‐point. The median of the 10 responses acquired at each time‐point was the score introduced in the analyses. CMAP and ROM were considered in absolute values.First, we tested the assumption of normality of distributions for each variable and group (KS for one sample test).Then, results at the three testing points for M‐wave amplitude of the HFor the amplitudes of the two H‐waves, the same statistical model was used but adding factor RECRUITMENT. This way, the analysis allowed us to estimate if the effects were differently expressed for HFor the ANOVA, the degrees of freedom were corrected with Greenhouse–Geisser coefficients if the sphericity was not assumed.With data derived from the Significance was set at a 