After the first few minutes of constant-load,submaximal exercise,VO₂ reaches steady state,indicating that A)the ATP demand is being met aerobically. B)levels of lactic acid in the blood are very high. C)the exercise can be continued indefinitely without fatigue. D)the oxygen uptake is not sufficient to meet the ATP demand.

Question

Quizplus · Accepted Answer

When VO₂ reaches steady state during constant-load, submaximal exercise, it indicates that the demand for ATP is being met aerobically. At this point, the oxygen uptake is sufficient to meet the energy demands of the exercise. This does not mean that the exercise can be continued indefinitely without fatigue, but it does mean that the body is efficiently producing ATP without the buildup of excessive lactic acid in the blood.

After the First Few Minutes of Constant-Load,submaximal Exercise,VO2 Reaches Steady

After the First Few Minutes of Constant-Load,submaximal Exercise,VO₂ Reaches Steady