Question

. Sheila is a female weight 60 kg, with a resting VO2 of 3.6 ml/kg/min and a resting RER of 0.74. If she is moderately active, what are her RMR and DEE? Be sure to show all work. If Sheila eats 1,900 calories a day, should she gain or lose weight? Explain your answer.

Answer 1

60 kg female, RER=0.74, eats 1900 calories a day, VO2= 3.6ml/Kg/min.

VO2=x ml/min/60 kg=3.6ml/Kg/min,

x ml/min=216ml/min=0.216L/min.

VO2=0.216L/min.

she eats 1900 calories and we know that 5000 calories= 1L of O2.

1900 calories=1900/5000L=0.38L

RER=0.74

therefore,RER in calories =(0.74*4.92) /0.90 = 4.04 kcal

Vo2 in cal = 5.23cal

therefore RMR= 1900+5.23+4=1900.23cal

DEE for moderately active =1900.23*1.55=2945.35

for a 60 kg woman the DEE is high so she has to lose weight