What is the effect of a higher VO2 max on endurance?

• A. It increases endurance capacity because more oxygen can reach the muscles and delay OBLA.
• B. It has no effect on endurance.
• C. It reduces endurance by increasing lactate.
• D. It only affects sprint performance.

Answer: (A)

The key idea is how VO2 max influences endurance by governing how much oxygen the body can deliver and use during sustained effort. When VO2 max is higher, more oxygen can reach the working muscles and fuel aerobic metabolism, so you can sustain a higher workload for longer before your body relies heavily on anaerobic glycolysis. This helps delay the onset of blood lactate accumulation (OBLA), meaning you can maintain a higher pace without fatiguing quickly. In short, a greater VO2 max expands the range of sustainable effort by enhancing oxygen delivery and utilization, which is central to endurance. The other statements aren’t correct because endurance is indeed affected by oxygen transport and usage, higher VO2 max doesn’t inherently raise lactate and reduce endurance, and VO2 max contributes to endurance beyond sprint performance.