Clinical Study
The Role of Cardiopulmonary Exercise Test in IPF Prognosis
Table 2
Results of the CPET and the 6MWT in the study population.
| | | | Mean ± SD |
| | CPET variable | | | | VO2 peak/kg (mL/kg/min) | 25 | 15.5 ± 3.9 | | VO2 at AT (mL/kg/min) | 21 | 11.6 ± 3.5 | | Oxygen pulse (mL/beat) | 25 | 9.2 ± 2.8 | | SpO2 peak | 25 | 87.7 ± 5.7 | | VE peak (L/min) | 25 | 54.2 ± 17.5 | | BR peak % | 25 | 27.3 ± 21.2 | | VE/VCO2 slope | 25 | 40.0 ± 13.5 | | VE/VCO2 ratio at AT | 21 | 37 ± 10.4 | | HR reserve | 25 | 19.2 ± 18.0 | | HR recovery | 25 | 14.5 ± 8.3 | | 6MWT variable | | | | Distance (meters) | 25 | 326.4 ± 153 | | SpO2 at the initiation% | 25 | 94.8 ± 2.2 | | SpO2 at the end% | 25 | 87.6 ± 5.6 | | Desaturation (%) | 25 | 7.2 ± 4.3 |
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Peak oxygen consumption/kg (VO2 peak/kg), anaerobic threshold (AT), oxygen pulse (O2P), oxygen saturation at peak exercise (SpO2 peak), total ventilation (VE), carbon dioxide output (VCO2), breathing reserve (BR), VE/VCO2 slope at anaerobic threshold (AT), and heart rate (HR). All values are shown as mean ± standard deviation.
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