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Estimated values of pulse wave velocity (PWV, m/s) in all analyzed groups: young (n = 16), adult (n = 16) and old (n = 10). Transit time was 17.65 ± 0.40 ms, 21.9 ± 0.66 ms and 18.93 ± 0.93 ms for young, adult and old rats, respectively. Distance between probes 6.38 ±0.13cm, 10.5 ± 0.11 cm and 11.5 ± 0.13 cm, for young, adult and old rats, respectively. Significance: One way ANOVA test with Tukey as post-hoc: * vs young, + vs adult, p <0.05
