Table 4 Cardiovascular response to vigorous intensity submaximal steady-state exercise
From: Sex differences in cardiovascular function during submaximal exercise in humans
All | Male | Female | p-value | |
|---|---|---|---|---|
Cardiovascular | ||||
VO2 (mL/min) | 2167.2 ± 664.2 | 2685.0 ± 504.9 | 1664.0 ± 335.5 | <0.01 |
VCO2 (mL/min) | 2257.7 ± 744.5 | 2801.8 ± 603.7 | 1746.4 ± 440.7 | <0.01 |
VO2 (mL/kg/min) | 29.5 ± 5.9 | 32.9 ± 5.7 | 26.1 ± 3.9 | <0.01 |
QI (L/min/m2) | 7.9 ± 1.4 | 8.7 ± 1.4 | 7.1 ± 0.9 | <0.01 |
SVI (mL/m2) | 44.7 ± 9.2 | 49.6 ± 9.5 | 40.1 ± 6.3 | <0.01 |
HR (bts/min) | 177.2 ± 11.0 | 176.7 ± 12.4 | 177.7 ± 9.9 | 0.95 |
AVO2 Difference (mL O2/100 mL blood) | 14.4 ± 1.6 | 15.3 ± 1.3 | 13.6 ± 1.4 | <0.01 |
SBP (mm Hg) | 196.2 ± 32.5 | 212.9 ± 26.3 | 180.1 ± 30.4 | <0.01 |
DBP (mm Hg) | 81.9 ± 10.6 | 83.5 ± 11.6 | 80.1 ± 9.5 | 0.29 |
MAP (mm Hg) | 120.0 ± 15.8 | 126.6 ± 140. | 113.4 ± 14.9 | <0.01 |
SVRI (dyn*sec/cm5/m2) | 1237.8 ± 192.9 | 1190.4 ± 200.0 | 1279.4 ± 180.9 | 0.047 |
Hemoglobin (g/dL) | 15.5 ± 1.5 | 16.7 ± 1.1 | 14.4 ± 0.7 | <001 |
SOT (mL/min/m2) | 1619.9 ± 371.1 | 1889.5 ± 303.5 | 1366.6 ± 219.4 | <0.01 |
RPE | 16.4 ± 0.9 | 16.4 ± 0.9 | 16.3 ± 0.9 | 0.75 |
Blood gases | ||||
PaO2 (mm Hg) | 98.6 ± 7.4 | 97.6 ± 6.9 | 99.4 ± 7.7 | 0.17 |
PaCO2 (mm Hg) | 32.9 ± 2.9 | 33.6 ± 2.8 | 32.4 ± 2.9 | 0.18 |
CaO2 (mL/100 mL) | 20.4 ± 1.9 | 21.9 ± 1.5 | 19.1 ± 0.9 | <0.01 |
Catecholamines & lactate | ||||
Epinephrine (pg/mL) | 318.0 ± 231.3 | 389.7 ± 286.2 | 250.7 ± 137.7 | 0.01 |
Norepinephrine (pg/mL) | 2252.8 ± 859.5 | 2508. ± 946.3 | 2012.5 ± 701.5 | 0.02 |
Lactate (mM) | 8.16 ± 2.46 | 8.79 ± 2.39 | 7.68 ± 2.39 | 0.08 |
Lactate fold change from baseline | 11.1 ± 5.1 | 11.5 ± 5.9 | 10.9 ± 4.3 | 0.61 |