Exam Qs Flashcards
Outline the strategies sporting organisations use to limit the use of banned substances by performers.
Random Testing Promote strong anti-doping culture i.e through education programmes Punishments ⬆️ funding for testing programmes Use of role models Use of biological passport
Draw a graph showing the changes in angular velocity, moment of inertia and angular momentum for one pirouette.
2 physiological benefits of acclimatisation training in a hot environment
Earlier + greater sweat response
⬆️ blood vol.
6 adaptations to CV system following 12 weeks of continous training
Cardiac Hypertrophy
⬆️ resting CO
Bradycardia
⬆️ RBC + Hb
⬆️ SV
Improved vasomotor control
How can an athlete maintain blood sugar levels during competition
High GI gels
Hypertonic or isotonic drinks
Explain how minute ventilation is increased at the start of exercise
Chemoreceptors detect ⬆️ in CO2 + ⬇️ pH.
Info is sent to RCC in medulla oblongata.
Sympathetic nervous system ⬆️ contraction of intercotal muscles via phrenic nerve.
In relation to angular motion, what 2 factors determine a performers moment of inertia?
Mass of performer
Distribution of mass from axis of rotation
You are a Personal trainer, your new client does no regular physical activity but
wants to enter a 5km race in 6 weeks time.
What fitness tests would you carry out in their first session? Justify your choices.
[4]
Key points:
New client – novice – may be sedentary – avoid maximal tests
Fitness components to improve – 5km – CV Endurance, muscular endurance.
Model answer:
Remember to structure your answer to match the question.
I would carry out the Harvard Step Test to measure their cardiovascular endurance
and the 1 Minute Sit up Test to measure their muscular endurance.
CV Endurance is required for a 5km race as it is needed to run for extended
periods without fatigue. Muscular endurance is needed for running as it involves
repeated muscle contractions over an extended period of time.
Additionally, I chose the Harvard Step Test as it is a sub-maximal test which is
appropriate for beginners as it doesn’t require the client to exercise to exhaustion.
Describe how the body’s usage of fats + CHO varies as exercise intensity increases
Fats require 15% more O2 to be metabolised than CHO.
Ind. levels of aerobic fitness will affect CHO usage.
Body will always be using relative proportions of fats + CHO.
Low intensity ex. = fats are predominant source of energy
As intensity ⬆️ = ⬆️CHO usage
Anaerobic ex = CHO are predominate source of energy.
