From: Sex and age interaction in fundamental circulatory volumetric variables at peak working capacity
 | Young | Older | P for age comparison | |||||
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| P for sex |
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| P for sex |
|
| |
Submaximal hemodynamics | ||||||||
 SBP100W (mm Hg) | 159.0 ± 21.2 | 157.2 ± 34.3 | 0.878 | 218.6 ± 48.9a | 205.3 ± 39.5a | 0.318 |  < 0.001 |  < 0.001 |
 DBP100W (mm Hg) | 96.6 ± 27.3 | 90.5 ± 19.5 | 0.536 | 111.4 ± 24.9 | 103.5 ± 21.1 | 0.257 | 0.124 | 0.084 |
 MBP100W (mm Hg) | 107.4 ± 13.8 | 109.5 ± 23.0 | 0.791 | 143.2 ± 31.3a | 135.0 ± 24.9a | 0.337 |  < 0.001 | 0.006 |
 SVR100W (dyn s cm−5) | 1137.7 ± 246.7 | 1011.6 ± 310.1 | 0.283 | 1923.5 ± 712.6a | 1573.8 ± 591.5a | 0.079 |  < 0.001 | 0.004 |
 HR100W (bpm) | 123.5 ± 20.1 | 105.6 ± 14.9* | 0.013 | 121.0 ± 15.0 | 102.2 ± 11.3* |  < 0.001 | 0.655 | 0.415 |
Submaximal echocardiography | ||||||||
 RA100W (mL m−2) | 16.10 ± 7.50 | 16.74 ± 5.56 | 0.801 | 13.41 ± 3.92 | 17.49 ± 6.01* | 0.005 | 0.137 | 0.701 |
 RV EDA100W (cm2 m−2) | 10.05 ± 2.77 | 11.17 ± 1.98 | 0.233 | 9.07 ± 2.05 | 10.72 ± 1.67* | 0.002 | 0.207 | 0.451 |
 RV ESA100W (cm2 m−2) | 4.42 ± 1.40 | 4.47 ± 0.89 | 0.910 | 3.77 ± 1.10 | 4.06 ± 1.20 | 0.345 | 0.108 | 0.266 |
 LA100W (mL m−2) | 15.07 ± 7.40 | 15.53 ± 7.18 | 0.870 | 17.09 ± 6.23 | 19.98 ± 7.89 | 0.142 | 0.362 | 0.085 |
 LVEDV100W (mL m−2) | 46.16 ± 7.91 | 56.43 ± 9.32* | 0.004 | 43.03 ± 8.87 | 49.87 ± 15.19* | 0.049 | 0.274 | 0.149 |
 LVESV100W (mL m−2) | 10.22 ± 2.39 | 13.51 ± 2.98* | 0.003 | 10.05 ± 3.99 | 12.48 ± 6.64 | 0.108 | 0.882 | 0.586 |
 LVEF100W (%) | 77.9 ± 3.4 | 75.8 ± 5.2 | 0.229 | 77.1 ± 6.1 | 75.6 ± 8.8 | 0.466 | 0.662 | 0.918 |
 SV100W (mL m−2) | 35.90 ± 6.41 | 42.91 ± 8.36* | 0.019 | 32.98 ± 6.61 | 37.39 ± 11.62 | 0.093 | 0.185 | 0.123 |
 Q100W (L min−1 m−2) | 4.37 ± 0.70 | 4.51 ± 0.92 | 0.656 | 3.95 ± 0.73 | 3.85 ± 1.37 | 0.724 | 0.082 | 0.109 |
Submaximal pulmonary variables | ||||||||
 VO2,100 W (mL min−1) | 1395.1 ± 331.7 | 1349.4 ± 359.0 | 0.760 | 1314.7 ± 355.8 | 1376.2 ± 367.1 | 0.535 | 0.524 | 0.838 |
 VO2,100 W (mL min−1 kg−1) | 21.4 ± 4.5 | 17.1 ± 4.0* | 0.028 | 22.2 ± 6.2 | 17.5 ± 5.1* | 0.003 | 0.695 | 0.837 |
 Ve100W (L min−1) | 21.9 ± 9.0 | 20.6 ± 15.1 | 0.801 | 33.0 ± 15.4a | 28.8 ± 13.9 | 0.293 | 0.033 | 0.117 |