Table 3.
Cardiopulmonary capacity parameters obtained before and after knee surgery.
| CPET Parameters | Pre-Surgery n = 22 |
Post-Surgery n = 22 |
p-Value |
|---|---|---|---|
| HR rest (bpm) | 63.3 ± 10.8 | 71.2 ± 12.5 | 0.041 |
| SAP rest (mmHg) | 118.2 ± 9.8 | 118.6 ± 9.8 | 0.848 |
| DAP rest (mmHg) | 75.9 ± 6.7 | 76.9 ± 8.7 | 0.591 |
| SpO2 rest (%) | 98.1 ± 0.8 | 97.9 ± 0.9 | 0.361 |
| FVC% ° (%) | 105.1 ± 11.1 | 104.7 ± 13.5 | 0.408 |
| FEV1% § (%) | 106.2 ± 10.7 | 105.7 ± 11.8 | 0.277 |
| MVV (L/min) | 169.9 ± 33.1 | 169.0 ± 34.3 | 0.618 |
| HR max (bpm) | 165.1 ± 15.2 | 163.0 ± 16.9 | 0.323 |
| SAP max (mmHg) | 157.5 ± 20.5 | 166.3 ± 22.5 | 0.771 |
| DAP max (bpm) | 88.6 ± 8.9 | 84.7 ± 10.3 | 0.186 |
| Power (Watt) | 170.1 ± 38.6 | 159.0 ± 41.5 | 0.154 |
| Peak RER | 1.16 ± 0.07 | 1.16 ± 0.08 | 0.980 |
| Peak VO2% ç (%) | 84.14 ± 14.7 | 84.9 ± 15.6 | 0.739 |
| VE/VCO2 slope | 24.5 ± 3.0 | 25.4 ± 4.1 | 0.185 |
| BR (%) | 51.4 ± 11.2 | 51.3 ± 9.9 | 0.973 |
| Peak O2 pulse * (mL/beat) | 13.5 ± 2.7 | 13.9 ± 2.6 | 0.748 |
| VO2/WR slope (mL/min/Watt) | 10.6 ± 1.0 | 10.6 ± 1.3 | 0.908 |
All values are reported as mean ± SD. BR = breathing reserve; CPET = cardiopulmonary exercise testing; DAP = diastolic arterial pressure; HR = heart rate (beats per minute); O2 = oxygen; FEV1 = forced expiratory volume in the first second; FVC = forced vital capacity; MVV = maximal voluntary ventilation; RER = respiratory exchange ratio; SAP = systolic arterial pressure, SpO2 = oxygen saturation; VE/VCO2 = ventilatory equivalent for carbon dioxide; VO2 = oxygen uptake. § FEV1% = percent-predicted forced expiratory volume in the first second; ° FVC% = percent-predicted forced vital capacity; ç Peak VO2% = percent-predicted peak oxygen consumption; * O2 pulse = VO2/HR.