A) Carotid artery compliance of young untrained adults, older untrained adults and Masters athletes (adapted from Tanaka et al., 2000 and Moreau et al., 2003), B) percent difference in carotid artery compliance from study-specific older untrained controls in Masters athletes of different sports (data compiled from Cook et al., 2006, Miyachi et al., 2003 and Nualnim et al., 2011). Values are means ± SEM. *P<0.05 vs. young untrained of same sex; †P<0.05 vs. older untrained of same sex.