Table 2.
Cerebral and systemic hemodynamic variables
| MA | MS | YS | P Value | |
|---|---|---|---|---|
| Heart rate, beats/min | 52 ± 9 | 62 ± 8* | 64 ± 8* | <0.001 |
| Brachial SBP, mmHg | 112 ± 11 | 114 ± 12 | 107 ± 10 | 0.140 |
| Brachial MAP, mmHg | 86 ± 8 | 90 ± 9 | 81 ± 7† | 0.003 |
| Brachial DBP, mmHg | 70 ± 7 | 73 ± 7 | 66 ± 6† | 0.004 |
| Brachial PP, mmHg | 42 ± 7 | 41 ± 7 | 42 ± 8 | 0.905 |
| Carotid SBP, mmHg | 107 ± 11 | 114 ± 13 | 102 ± 12† | 0.006 |
| Carotid PP, mmHg | 37 ± 7 | 41 ± 9 | 36 ± 8 | 0.112 |
| Systolic CBFV, cm/s | 96.8 ± 26.3 | 77.1 ± 13.2* | 94.8 ± 16.3† | 0.003 |
| Mean CBFV, cm/s | 62.9 ± 16.4 | 52.9 ± 9.9 | 63.6 ± 13.9† | 0.023 |
| Diastolic CBFV, cm/s | 39.3 ± 10.2 | 34.5 ± 6.9 | 41.6 ± 11.1 | 0.055 |
| Pulsatile CBFV, cm/s | 57.5 ± 17.4 | 42.6 ± 8.2* | 53.2 ± 9.7† | <0.001 |
| CCP, mL·100 g−1·min−1 | 48.6 ± 8.2 | 46.6 ± 7.1 | 53.4 ± 9.9† | 0.036 |
| ETCO2, mmHg | 37.0 ± 4.1 | 37.8 ± 3.4 | 38.1 ± 4.5 | 0.688 |
Values are means ± SD. CBFV, cerebral blood flow velocity; CCP, cerebral cortical perfusion; DBP, diastolic blood pressure; ETCO2, end-tidal CO2; MA, masters athlete; MAP, mean arterial pressure; MS, middle-aged sedentary; PP, pulse pressure; SBP, systolic blood pressure; YS, young sedentary.
*
P < 0.05 vs. MA;
†
P < 0.05 vs. MS.