From: Sex and age interaction in fundamental circulatory volumetric variables at peak working capacity
 | Young | Older | P for age comparison | |||||
---|---|---|---|---|---|---|---|---|
|
| P for sex |
|
| P for sex |
|
| |
Hbmass (g) | 655.8 ± 86.6 | 1011.9 ± 133.8* |  < 0.001 | 610.3 ± 81.3a | 923.8 ± 116.0*a |  < 0.001 | 0.046 | 0.033 |
Hbmass (g kg−1) | 10.3 ± 1.5 | 13.1 ± 1.5* |  < 0.001 | 10.2 ± 1.2 | 11.6 ± 1.3*a |  < 0.001 | 0.833 | 0.002 |
Hb (g dL−1) | 13.2 ± 1.0 | 15.4 ± 0.7* |  < 0.001 | 13.3 ± 0.6 | 14.9 ± 1.0* |  < 0.001 | 0.512 | 0.111 |
Hct (%) | 40.4 ± 3.0 | 47.2 ± 1.9* |  < 0.001 | 40.9 ± 1.8 | 45.7 ± 3.1* |  < 0.001 | 0.508 | 0.107 |
RBCV (mL) | 2248 ± 295 | 3407 ± 450* |  < 0.001 | 2060 ± 274a | 3111 ± 387*a |  < 0.001 | 0.046 | 0.033 |
RBCV (mL kg−1) | 34.8 ± 5.2 | 43.9 ± 5.1* |  < 0.001 | 34.5 ± 4.2 | 38.9 ± 4.3*a |  < 0.001 | 0.837 | 0.002 |
PV (mL) | 3332 ± 508 | 3810 ± 470* | 0.016 | 2983 ± 418a | 3709 ± 530* |  < 0.001 | 0.021 | 0.550 |
PV (mL kg−1) | 51.4 ± 7.6 | 49.3 ± 6.9 | 0.445 | 49.8 ± 6.1 | 46.4 ± 6.1 | 0.038 | 0.469 | 0.176 |
BV (mL) | 5580 ± 717 | 7216 ± 882* |  < 0.001 | 5043 ± 667a | 6820 ± 796* |  < 0.001 | 0.020 | 0.150 |
BV (mL kg−1) | 86.2 ± 11.5 | 93.2 ± 11.5 | 0.118 | 84.3 ± 9.8 | 85.4 ± 8.8a | 0.675 | 0.582 | 0.018 |