| CPET | cardiopulmonary exercise test |
| HFrEF | heart failure with reduced ejection fraction |
| Peak Vo2 | peak oxygen consumption |
| Peak Vo2, body mass | peak oxygen consumption indexed to total body mass |
| Peak Vo2, lean | peak oxygen consumption indexed to estimated lean body mass |
| RER | respiratory exchange ratio |
| %Vo2 | percent of predicted peak oxygen consumption |
| VT | ventilatory threshold |
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