For the lineal mixed model analysis (Figure 3). The ANOVA test of SBP during the first set of CD revealed a significant main effect (p < 0.001), with pairwise comparisons showing significantly higher values in 1st and 4th–8th repetitions in comparison with the baseline (p < 0.001). Fitting Model 1 to these data showed a fixed effect of repetition (i.e., estimated population slope in the repetition SBP relationship) of 7.28 mmHg (standard error: 1.27; p < 0.001). Random effect analyses estimated a standard deviation of 3.83 mmHg, and therefore, an intersubject variance of 14.68 (mmHg/rep)2 for the slope of regression (7.28 ± (1.96 × 3.83)).