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Oxygen Pulse (O2 Pulse Index) Calculator

Oxygen Pulse (O₂ Pulse Index): Explanation and Clinical Context The Oxygen Pulse is defined as the amount of oxygen consumed per heartbeat during exercise, calculated by dividing VO₂ (oxygen uptake in mL/min) by heart rate (bpm). It serves as a non-invasive surrogate for stroke volume during exercise. Normal values in healthy adults range approximately from 10 to 15 mL/beat, but may vary with age, sex, fitness level,

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Oxygen Uptake Efficiency Slope (OUES) Calculator

Oxygen Uptake Efficiency Slope (OUES): Explanation and Clinical Context OUES is a submaximal index derived from cardiopulmonary exercise testing (CPET) that quantifies the efficiency of oxygen uptake relative to ventilation. It is calculated using the linear relationship between oxygen consumption (VO2) and the logarithm of minute ventilation (VE), typically expressed as VO2 = a × log10(VE) + b, where the slope 'a' r