Twenty-eight Sicilian water polo male players participated in this study (age 25.1 ± 6.3 years; height 1.81 ± 0.07 m; body mass 85.5 ± 14.5 Kg; BMI 26.4 ± 4.4 Kg/m2; BSA 2.05 ± 0.16 m2). The players had at least 3 years of training and competition experience and took part in several competitions/year.