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Table 2 Reference Equations Used for interpretation by XINT.

From: Software for interpreting cardiopulmonary exercise tests

Spirometry [4]:
FEV1 Male: (0.132 × height (cm)) - (0.027 × age (yrs)) - 4.20
   Female: (0.069 × height (cm)) - (0.021 × age (yrs)) - 0.794
FVC Male: (0.165 × height (cm)) - 0.029 × age (yrs)) - 5.45
   Female: (0.094 × height (cm) - 0.022 × age) - 1.774
Estimating Vo2 From External Power Output:
Treadmill (walking) [5]:
VO2max (ml/kg/min) = maximum speed (Mph)* (262.5 + 17.5* elevation)/60
Cycle ergometer:
VO2 max (ml/min) = maximum Watts *11 + 300
Estimated Heart Rate-Vo2 Slope (Hr/Vo2) If Not Entered [6]:
Male: (maxHR - 63)/maxVo2M1/1000
Female: (maxHR - 73)/maxvo2M1/1000
Maximum Ventilation:
MVV if entered, else FEV1 × 35
Maximum Heart Rate:
202 - (0.72 × Age (yr))
Maximum Predicted Oxygen Uptake (Ml/Kg/Min) [7]:
Male: 43.2 - (0.255 × age)
Female: 42.3 - (0.33 × age)