Total exercise time increased in both groups after 3 months ( placebo : +86 + / - 13 s ; captopril : +69 + / - 12 s , p = 0.8 between groups ) and increased further after 1 year ( placebo : +13 + / - 11 s ; captopril : +33 + / - 13 s , p = 0.7 between groups ) .
