EXMD2382 Lecture 4: Lecture 4 – Assessing Cardiorespiratory Fitness
Document Summary
Vo2max is the point where increases in intensity do not result in an increase in oxygen consumption it plateaus. Vo2peak is the point where the person reaches volitional fatigue they cannot keep going, but there is. Aerobic capacity is the maximal time that someone can exercise for until fatigue. The relationship between exercise capacity and cardiorespiratory fitness is moderate (r-value = 0. 6) Exercise capacity is most important for sporting performance. Pre-exercise screening must be performed prior to any exercise testing. Contraindications to exercise testing: compare risks and benefits of testing. Absolute contraindications: should not perform tests until conditions are treated or stabilised. Relative contraindications: should not perform tests until risks and benefits are assessed. For safety reasons, the test may be terminated. Vo2max test: assesses cardiorespiratory fitness and energy expenditure. A vo2max test can also provide information on substrates being used: direct measurement of vo2max is usually carried out using open circuit spirometry.
