2.6. Statistical Analysis
ARTERIAL STIFFNESS
The sample size was calculated for the primary outcome (i.e., arterial stiffness), as indicated in a previous study [The primary analyses of this study were defined as “per protocol” to assess efficacy, and patients in the exercise group were included if attendance was ≥75%. The achieved power in these analyses was calculated for each of the outcomes (i.e., anthropometry, body composition and adherence to the Mediterranean diet) using the G*Power 3.1 program. Subsequently, two different sensitivity analyses were conducted to assess the robustness of the results: (i) imputation of missing values with the first observed data (intention-to-treat); (ii) per protocol with a minimum attendance of 90%.All analyses were performed using the Statistical Package for Social Sciences (SPSS) version 23.0 (IBM Corp., Armonk, NY, USA). The significance level was set at 