Table 3.
Ergospirometric variables assessed during the maximal functional reserve test (mean ± SD).
| Maximal functional reserve (tests with ischaemic recovery) | |||
|---|---|---|---|
| Males (n = 30) | Females (n = 13) | p | |
| Time to exhaustion (s) | 77.6 ± 35.1 | 110.1 ± 69.2 | 0.129 |
| Power (W) | 290 ± 51 | 203 ± 48 | 0.000 |
| Power (W·kg BW−1) | 4.0 ± 0.7 | 3.5 ± 0.4 | 0.020 |
| Power (W·kg LM−1) | 5.2 ± 0.8 | 5.1 ± 0.6 | 0.768 |
| Power (W·kg LLM−1) | 14.4 ± 2.3 | 14.5 ± 1.9 | 0.853 |
| Work (kJ) | 22.3 ± 10.4 | 22.9 ± 15.9 | 0.899 |
| Work (kJ·kg BW−1) | 0.30 ± 0.13 | 0.39 ± 0.26 | 0.287 |
| Work (kJ·kg LM−1) | 0.40 ± 0.17 | 0.56 ± 0.36 | 0.046 |
| Work (kJ·kg LLM−1) |
1.10 ± 0.48 |
1.61 ± 1.01 |
0.598 |
| O2 demand (mL) | 4711 ± 2328 | 4730 ± 3595 | 0.984 |
| Accumulated O2 (mL) | 3248 ± 1821 | 3360 ± 2557 | 0.471 |
| Accumulated O2 (mL·kg LLM−1) | 160 ± 85 | 236 ± 164 | 0.674 |
| O2 deficit (mL) | 1463 ± 709 | 1370 ± 1097 | 0.746 |
| O2 deficit (mL·kg BW−1) | 19.9 ± 8.8 | 23.0 ± 16.5 | 0.545 |
| O2 deficit (mL·kg LM−1) | 26.1 ± 11.6 | 33.3 ± 23.3 | 0.184 |
| O2 deficit (mL·kg LLM−1) | 72.4 ± 32.2 | 95.4 ± 66.4 | 0.271 |
| O2/Work (mL·kJ−1) | 127 ± 28 | 143 ± 20 | 0.070 |
| O2/Power (mL·W−1) | 14.4 ± 7.0 | 17.8 ± 11.5 | 0.348 |
| % Anaerobic Energy | 40.2 ± 10.8 | 33.5 ± 9.8 | 0.071 |
| RER | 1.33 ± 0.11 | 1.26 ± 0.23 | 0.183 |
| VE (L·min−1) | 114.4 ± 18.6 | 91.7 ± 17.7 | 0.001 |
| RR (Breaths·min−1) | 52.2 ± 8.4 | 57.7 ± 8.9 | 0.069 |
| VE/ VO2 | 51.7 ± 8.6 | 52.8 ± 10.3 | 0.725 |
| VE/ VCO2 | 35.9 ± 4.6 | 41.4 ± 6.1 | 0.003 |
| PETO2 (mmHg) | 120.9 ± 3.4 | 121.2 ± 3.9 | 0.783 |
| PETCO2 (mmHg) | 30.3 ± 3.7 | 28.2 ± 2.8 | 0.203 |
| Vastus Lateralis TOI (%) | 62.0 ± 3.9 | 62.3 ± 5.2 | 0.835 |
| Frontal lobe TOI (%) | 63.6 ± 6.1 | 58.1 ± 8.9 | 0.030 |
| MCAv (cm.s−1) | 40.6 ± 6.8 | 40.8 ± 14.6 | 0.966 |
HRmax: maximal heart rate; VO2max: maximal oxygen uptake; Wmax: maximal intensity during the incremental exercise test to exhaustion; LLM: lean mass of the lower extremities; Accumulated O2: total amount of O2 consumed during the test; and the average values during the 120% CP test for: RER, respiratory exchange ratio; E, pulmonary ventilation; RR, respiratory rate; PETO2, end tidal O2 pressure; PETCO2, end tidal CO2 pressure; TOI, tissue oxygenation index; MCAv, middle cerebral artery velocity. P values based on two-tailed unpaired t-tests.