Table 2.
Middle Cerebral Artery Blood Flow Velocity Kinetics
| Young | Middle-Aged | Older | P-Value | |
|---|---|---|---|---|
| MCAv Baseline (cm*s−1) | 61.8 ± 10.6 | 54.8 ± 9.0 | 48.4 ± 10.6 | <0.001*^# |
| MCAv Time Delay (s) | 50.1 ± 23.3 | 60.2 ± 38.3 | 35.9 ± 42.4 | 0.01# |
| MCAv τ (s) | 29.0 ± 23.7 | 40.5 ± 44.4 | 36.6 ± 37.6 | 0.27 |
| MCAv Amplitude (cm*s−1) | 17.4 ± 9.4 | 10.8 ± 5.9 | 6.2 ± 7.0 | <0.001*^# |
| MCAv Steady State (cm*s−1) | 79.6 ± 15.6 | 65.2 ± 11.9 | 54.6 ± 12.5 | <0.001*^# |
Data are presented as mean ± standard deviation. MCAv, middle cerebral artery blood flow velocity; cm*s−1, centimeters per second; s, seconds. The p-value represents the analysis of variance. Symbols indicate significant pairwise differences from Tukey post-hoc analysis:
*
p ≤ 0.025 for young vs. older adults
^
p ≤ 0.025 for young vs. middle-aged adults
#
p ≤ 0.025 for middle-aged vs. older adults.