During cardiorespiratory exercise with progressively increasing intensity, the need for additional oxygen is met initially through linear increases in minute ventilation (VE). The point at which the increased demands for oxygen can no longer be met by this linear increase, causing a nonlinear increase in ventilation is known as the __________ and can be measured via a __________.

During cardiorespiratory exercise with progressively increasing intensity, the need for additional oxygen is met initially through linear increases in minute ventilation (VE). The point at which the increased demands for oxygen can no longer be met by this linear increase, causing a nonlinear increase in ventilation is known as the __________ and can be measured via a __________. 




A. Aerobic capacity; V02 max test
B. Second ventilatory threshold (VT2); VT2 threshold test
C. Onset of blood lactate accumulation (OBLA); blood lactate analyzer
D. First ventilatory threshold (VT1); submaximal talk test for VT1


Answer: D


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