| BMI | Body mass index |
| BPI-SF | Short-Form Brief Pain Inventory |
| Bpm | beats per minute |
| CK | Creatine Kinase |
| En% | energy percentage |
| g/kg/day | gram per kilogram body weight per day |
| HRmax | maximal heart rate |
| ITT | Intention-to-treat |
| IQR | Interquartile range |
| LDH | Lactate dehydrogenase |
| NPRS | Numeric Pain Rating Scale |
| PP | Per-protocol |
| U/L | unit/liter |
| VO2max | Maximal rate of oxygen consumption |
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