Table 2.
Resting parameters
| Sedentary | Casual | Committed | Masters Athletes | ANOVA P Value | |
|---|---|---|---|---|---|
| V̇o2 | |||||
| ml/min | 229 ± 56 | 214 ± 48 | 244 ± 63 | 230 ± 48 | 0.726 |
| ml·kg−1·min−1 | 3.0 ± 0.5 | 3.2 ± 0.4 | 3.3 ± 0.7 | 3.5 ± 0.7* | 0.037 |
| ml·kg FFM−1·min−1 | 4.5 ± 0.8 | 4.6 ± 0.6 | 4.7 ± 1.0 | 4.6 ± 0.8 | 0.920 |
| Q̇c, l/min | 4.2 ± 1.0 | 3.8 ± 0.8 | 3.9 ± 0.9 | 4.1 ± 1.2 | 0.619 |
| QI, l·m−2·min−1 | 2.2 ± 0.5 | 2.0 ± 0.3 | 2.1 ± 0.4 | 2.3 ± 0.5 | 0.130 |
| Q̇c, ml·kg FFM−1·min−1 | 82.6 ± 15.0 | 72.8 ± 14.5 | 75.3 ± 14.6 | 81.4 ± 17.1 | 0.070 |
| Heart rate, beats/min | 81 ± 10 | 77 ± 13 | 68 ± 9*† | 67 ± 9*† | <0.001 |
| SV, ml | 53 ± 13 | 51 ± 16 | 59 ± 18 | 63 ± 19 | 0.056 |
| SI, ml/m2 | 28 ± 7 | 27 ± 7 | 31 ± 8 | 35 ± 9*† | 0.002 |
| SV, ml/kg FFM | 1.0 ± 0.2 | 1.0 ± 0.2 | 1.1 ± 0.3 | 1.2 ± 0.3† | 0.007 |
| MAP, mmHg | 98 ± 13 | 93 ± 10 | 96 ± 10 | 100 ± 9 | 0.115 |
| Ea, mmHg·ml−1·m−2 | 4.4 ± 1.2 | 4.4 ± 1.3 | 3.8 ± 0.9 | 3.5 ± 0.8*† | 0.009 |
| SVR, dyn·s·cm−5 | 1,976 ± 547 | 2,051 ± 557 | 2,053 ± 505 | 2,067 ± 504 | 0.586 |
| (a-v)Do2, ml/dl | 6 ± 2 | 6 ± 1 | 6 ± 2 | 6 ± 1 | 0.206 |
Values are means ± SD.
V̇o2, oxygen uptake; Q̇c, cardiac output; QI, cardiac index; SV, stroke volume; SI, stroke index; MAP, mean arterial pressure; Ea, effective arterial elastance index; SVR, systemic vascular resistance; (a-v)Do2, arteriovenous oxygen difference.
*
P < 0.05 vs. sedentary.
†
P < 0.05 vs. casual.