Figure 2.

Systolic blood pressure absolute values (SBP) and changes (ΔSBP exercise – pre-exercise) measured pre-exercise (PRE) and during three sets (S1, S2, and S3) and intervals (I1, I2, and I3) of knee-extension resistance exercise performed to failure at 100% (panels A and B), 80% (panels C and D), and 40% (panels E and F) of 1 RM. Measures were taken with subjects receiving placebo (solid line with solid circles or black bars) and atenolol (dotted line with open circles or white bars) in hypertensive subjects. * Significantly different from placebo (P < 0.05). # Significantly different from PRE (P < 0.05). $ Significantly different from S1 (P < 0.05). Data = mean ± SE