Exercise physiology · Physiology

Which factor primarily limits VO2 max in healthy individuals?

  1. Muscle mitochondrial capacity
  2. Pulmonary diffusion capacity
  3. Cardiac output
  4. Hemoglobin concentration alone
Show answer and explanation

Correct answer: Cardiac output

Cardiac output is the main limiting factor for VO2 max in healthy people. It determines how much oxygenated blood can be delivered to active muscles.

Difficulty: Medium Question 11 of 20

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