Figure 3. Heart rate (HR) and mean arterial pressure (MAP) during isometric handgrip and post-exercise ischaemia (PEI), for the control, β-adrenergic blockade and parasympathetic blockade conditions.

A and C, 1 min averages of HR and MAP, respectively, during all experimental phases of the control (black symbols), β-adrenergic blockade (light grey symbols) and parasympathetic blockade (dark grey symbols) conditions. B and D, change in HR and MAP, respectively, elicited during the last minute of handgrip (Ex, black bars) and PEI (dark grey bars) in each condition. Rec, recovery.