Statistical analyses
ARTERIAL STIFFNESS
A priori statistical power analysis was performed to determine the sample size needed for the present study using G*Power 3.1.9.6 [All data are expressed as mean ± standard deviation (SD). Statistical analyses were performed using IBM SPSS Statistics for Mac version 27.0 (IBM Corp., Armonk, N.Y., USA). The effects of time and trials were examined by the two-way repeated-measures ANOVA (trial × time) for participants’ characteristics, ambulatory BP and HR, hemodynamics, baroreflex sensitivity, autonomic nervous system, central arterial stiffness, and morning BP surge. The difference in the time course of ambulatory SBP and physical activity between the trials was also analyzed by the two-way repeated-measures ANOVA. In the case of significant Moreover, we calculated the absolute change (Δ) from Friday to Monday in each trial in cfPWV, morning BP surge, and LF-SBP. Then, Pearson’s correlation coefficients were used to assess the relationships between the ΔcfPWV and Δmorning BP surge or ΔLF-SBP, Δmorning BP surge, and ΔLF-SBP. The level of significance for all comparisons was set at 