During intense anaerobic exercise, fatigue is most closely associated with the accumulation of:
Show answer and explanation
Correct answer: Lactic acid and hydrogen ions
Accumulation of lactic acid and hydrogen ions lowers intracellular pH, impairing enzyme activity and muscle contraction. This contributes significantly to fatigue during high-intensity exercise.
Keep practicing
More Exercise physiology questions
- Which cardiovascular adaptation is commonly seen in trained endurance athletes?
- The primary factor responsible for increased ventilation during exercise is:
- Which muscle fiber type is most resistant to fatigue?
- The respiratory quotient (RQ) during pure carbohydrate metabolism is approximately:
- Which factor primarily limits VO2 max in healthy individuals?
- Excess post-exercise oxygen consumption (EPOC) is mainly required for: