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QLDPhysical EducationQuick questions
Unit 4: Energy, Fitness and Training Integrated into Physical Activity
Quick questions on VO2 max and lactate threshold for QCE Physical Education Unit 4
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is vO2 max?Show answer
VO2 max is the maximum rate at which the body can take in, transport, and use oxygen during exercise, usually expressed in millilitres of oxygen per kilogram of body mass per minute. It represents the ceiling of the aerobic system.
What is lactate threshold?Show answer
Lactate threshold is the exercise intensity at which lactate is produced faster than it can be cleared, so blood lactate begins to rise sharply. The point where this sharp rise begins is the onset of blood lactate accumulation (OBLA). It is usually expressed as a percentage of VO2 max.
What is q1?Show answer
Define VO2 max and identify two physiological factors that determine it. [3 marks]
What is q2?Show answer
Two runners have the same VO2 max but different 10 km times. Explain how lactate threshold accounts for the difference, and recommend a training method to raise the threshold. [5 marks]
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