Skill acquisition
Name the two types of practice variability.
Blocked and random
Two ways to increase stability
What is the preferred fuel at rest?
Fats
Provide two aerobic power tests.
Yo-yo intermittent recovery test and Cooper 12-minute run.
Provide two types of intrinsic feedback.
Visual, auditory, touch, proprioceptive.
Provide two characteristics of the associative stage of learning.
How is impulse used in hockey?
Using impulse to increase momentum
Using impulse to decrease momentum to 0
Provide two benefits of an active recovery.
Explain the benefit of using a training diary.
Ensures chronic adaptations occur and prevents overtraining. For example, if an athlete is sore or injured, the training session should be modified.
Provide an acute muscular response that hinders performance.
Decreased energy substrates (ATP, PC, glycogen and fats).
Increase muscle temperature.
Increased metabolic by-product production.
Three factors you must discuss when classifying a skill as open or closed.
Explain conservation of momentum with reference to a bowling ball hitting a pin.
Why does a person running the half marathon (say 90 mins) complete each km slower on average than a person running the marathon (say 3 hours)?
More reliance on fats in marathon, which produces ATP at a slower rate than the half marathon, which has a higher reliance on CHO (faster rate).
Justify the vertical jump test from a psychological, physiological and sociocultural perspective.
Physiological
Psychological
Sociocultural
Provide 3 chronic muscular adaptations to aerobic training.
Increased size and number of mitochondria
Increased oxidative enzymes
Increased a-vO2 difference
Increased glycogen sparing
Increased myoglobin
Provide two constraints for each of the three categories of constraints.
Individual
Environment
Task
With reference to levers, explain the benefit of using a long cricket bat over a short cricket bat.
Long bat (third class lever) increases length of resistance arm.
Decreases mechanical advantage further below 1.
Provides large ROM and increases velocity of bat, greater velocity imparted onto ball and more distance achieved with stroke.
Provide two causes of fatigue of the aerobic system.
Glycogen depletion and elevated body temperature (thermoregulatory fatigue).
Identify the load, sets, reps, speed and rest for a muscular power training session.
40% 1RM
3 sets
3 – 6 reps
Fast
3 mins rest
Explain the relationship between heart rate, stroke volume and cardiac output as an athlete moves from rest ro submaximal and maximal intensity exercise.
Q = SV x HR.
HR increases linearly.
SV plateaus at submaximal intensity.
Any further increase in Q is due to an increase in HR.
One advantage and one disadvantage of both the direct and constraints-based approach to coaching.
Direct advantages
Direct disadvantages
Constraints-based advantages
Constraints-based disadvantages
Explain why a child would not select a long, heavy bat like an adult might.
Why do children "choke" the bat?
Hint: refer to inertia and levers
Heavy bat has too much inertia for the child to be able to move it and get the advantage of a third class lever.
Choking the bat reduces the resistance arm so less force is required to swing the bat (as children have less muscle mass). It can be swung with a greater angular velocity as a result.
Describe the energy system interplay for a netball centre player.
2 x 15 min halves with 3 min break in between.
Prescribe a HIIT training session for an AFL player.
A student is doing a 10 km fun run this weekend.
Would they benefit from a higher lactate tolerance or higher LIP? Explain your response.
Why should she also train for the other adaptation?
LIP -- can work at higher aerobic intensities for longer.
High lactate tolerance good for sprint finish, surge or uphill portions.