| EG | Experimental Group |
| CG | Control Group |
| IHHE | Intermittent Hypoxic–Hyperoxic Exposure |
| HRV | Heart Rate Variability |
| MIP | Maximal Inspiratory Pressure |
| FVC | Forced Vital capacity |
| FEV1 | Forced Expiratory Volume in One Second |
| CRP | C-Reactive Protein |
| SBP | Systolic Blood Pressure |
| DBP | Diastolic Blood Pressure |
| SpO2 | Arterial Oxygen Saturation |