FIGURE 4.

Baseline cerebral blood flow velocity, cerebral autoregulatory and baroreflex responses. (A) Percent change in baseline cerebral blood flow velocity from pre-saturation measured at the middle cerebral artery (MCAv%) across timepoints. N = 4 (male, n = 4). (B) One-second averages of beat-by-beat MCAv, mean arterial pressure (MAP), and estimated heart rate derived from systolic blood pressure peaks during waking prone (lying) position into standing position capturing the cerebral autoregulatory and baroreflex responses. N = 3 (male, n = 3). Data: Mean ± SD. MCAv%, middle cerebral artery velocity percent change; MAP, mean arterial pressure. *p < 0.05.