VO₂ Max/LIP Live Demo (Schools): 90 Minutes
WHAT IS IT?
A live demonstration of a VO₂ max test with or without blood lactate testing on a cycling ergometer, rowing ergometer or treadmill. This is a popular service amongst secondary schools who are currently teaching VCE Units 3&4 in Year 12 PE. METS sets up in your classroom, gymnasium or lecture theatre and performs the test on a volunteer while discussing relevant topics to year 12 VCE PE, and clearly interprets the data at the conclusion of the test in a language appropriate to the physiological knowledge a year 12 PE class is expected to have.
- Volunteer completes informed consent and PAR-Q prior to the testing date (or parental guardian if under 18).
- METS brings all the equipment necessary for the test to the venue. All we require is access to a powerpoint and projector (if you wish to analyse the data on the day).
- Volunteer’s height and weight is recorded, and resting blood lactate concentration is measured (if opting for lactate testing).
- The incremental test begins at a low intensity and is increased every minute (VO₂ max test) or every three minutes (VO₂ + LIP testing) until the volunteer reaches volitional exhaustion (elects to stop). Metabolic data is recorded constantly throughout the test, and blood lactate samples are taken at the conclusion of each 3 minute workload.
- Lactate (if opting for lactate testing), heart rate, VO₂, ventilation, respiratory flow, fraction of expired oxygen (a-vo2 difference), load (watts), and energy expenditure values are constantly recorded throughout the test and can be displayed and interpreted immediately following the conclusion of the test.
- METS can perform the test independently, or can allow for a number of student volunteers to assist with the running of the test.METS staff will complete all the blood lactate testing, but students’ roles can include:
- To periodically increase the bike’s wattage,
- Record heart rate and blood lactate values,
- Graph lactate vs heart rate vs power data on excel as we go,
- Look after the participant and provide them with feedback throughout the test.
The test itself will take approximately 12 minutes for VO₂ max testing, or 20 minutes with LIP testing, depending on the fitness of the volunteer. At the conclusion of the test, the data (including graphs) can be connected to a projector screen and ready for viewing within 5 minutes. We can then have a discussion about specific outcomes to Year 12 PE including:
Unit 3 area of study 2:
- Discussion surrounding energy system interplay at the beginning, during, and towards the end of exercise. We can discuss the increase in anaerobic contribution evident as the volunteer reaches LIP.
- Discussion around fuel utilisation and % of carb vs fat at different exercise intensities.
- Discuss fatigue mechanisms responsible for the volunteer reaching exhaustion and how to combat and recover from this fatigue.
- Acute responses of the cardiovascular, respiratory and muscular systems occurring during the test.
Unit 4 area of study 1:
- Discussion around heart rate and work:rest ratios appropriate to improve fitness.
- Discussion around conducting a fitness test including purpose, PAR-Q, informed consent, test aims and protocol, test reliability and validity.
Unit 4 area of study 2:
- Training methods to improve cardiovascular fitness (continuous, short, medium, long intervals, HIT, fartlek).
- The principles of periodisation and programming.
- Chronic adaptations to endurance training and which training methods achieve the best results.
The cost the described demonstration is $20 per student, with a minimum spend of $400. Please email firstname.lastname@example.org or call 0401 250 195 to ask questions or discuss further.