Figure 3. Cardiovascular parameters. (A) Stroke volume (SV), (B) heart rate (HR), and (C) cardiac output (CO) during each 1-minute window of EX1 are shown. (D) SV, (E) HR and (F) CO at 20%, 40%, 60%, 80% and 100% isotime are shown. Data are presented as mean ± SD, n = 12. * P < 0.05 vs. sham.