Which of the Following Is NOT Among the Criteria Used $\bullet$

Multiple Choice

Which of the following is NOT among the criteria used to determine if a VO₂ max test is valid?

A) HR within 10 beats per minute of predicted HR max
B) respiratory exchange ratio >1.00
C) blood lactate concentration >8 m moles $\bullet$ L^-1
D) plateau in VO₂ with increasing work rate