Calculate the Calories expended if you walked for 20 minutes

Calculate the Calories expended if you walked for 20 minutes with the following values:

VE: 28 L/min

FIO2: 16%

FECO2: 4.7%

VCO2 = 28 L/min * 4.7% = 1.13 L/min

VO2 = 28 L/min * 16% = 4.48 L/min

RQ = VCO2/VO2

= 1.13/4.48 = 0.25

Kcal/min = ((1.1 x RQ) + 3.9) x VO2/L

Kcal = ((1.1 x RQ) + 3.9) x VO2/L x min

= ((1.1 x 0.25) + 3.9) x 4.48 x 20

= 4.175 x 4.48 x 20

= 374.08