VCE PE Exam Discussion and Solutions

[kurtmclkv]

did you guys choose Emily or Corey? I chose Emily but the one other person I've spoken to about it chose Corey ://

[tomfloyd]

did you guys choose Emily or Corey? I chose Emily but the one other person I've spoken to about it chose Corey ://

Emily, the test was at max intensity, therefore beyond LIP regardless how well developed LIP the athlete has

[NathanG]

did you guys choose Emily or Corey? I chose Emily but the one other person I've spoken to about it chose Corey ://

Emily because LIP is usually related to aerobic exercise, the 30 second windgate was anaerobic, causing a build up of metabolic by-products. Greater ability to buffer said by-products would be more beneficial than having a high LIP in that case

[NathanG]

Any ideas about the MC question, Field testing v Lab testing, I still can't get my head around it, I ended up going with ethical, as the other 3 would not be why a field test is preferable.

I said validity only because in the filed the tests can be more specific to the sport therefore the testing measures what it's intended to be measuring.... a lot of people have said ethical though so i guess we'll have to see

[johnno]

Anyone got full answers? I think MC are:

1B
2D
3D
4A
5B
6D
7C
8A
9B
10D
11B
12B
13C
14C
15C

Correct me if wrong, I think this is right

[tomfloyd]

Anyone got full answers? I think MC are:

1B
2D
3D
4A
5B
6D
7C
8A
9B
10D
11B
12B
13C
14C
15C

Correct me if wrong, I think this is right

3 will be C, as D refers to lactate tolerance, whereas answer C describes how insufficient oxygen, therefore increased anaerobic glycolysis which will result in an accumulation of Blood Lactate

[daryll31]

Question 2 isn't D:

It's B because LIP can be delayed, and performance power increased, without any changes to your VO₂ max. This is achieved by improving your muscle efficiency through increasing hydrogen ion buffering capacity, lactate tolerance, lactate clearance, and increasing aerobic enzyme activity. Absorbing, transporting, and metabolising hydrogen and lactate more quickly means we can sustain higher workloads than previously possible, as this exponential accumulation does not occur until a higher exercise intensity.

[tomfloyd]

Question 2 isn't D:

It's B because LIP can be delayed, and performance power increased, without any changes to your VO₂ max. This is achieved by improving your muscle efficiency through increasing hydrogen ion buffering capacity, lactate tolerance, lactate clearance, and increasing aerobic enzyme activity. Absorbing, transporting, and metabolising hydrogen and lactate more quickly means we can sustain higher workloads than previously possible, as this exponential accumulation does not occur until a higher exercise intensity.

No it is D, due to aerobic training, the body has an increased ability to oxidise fats and carbohydrates aerobically at a higher intensity for longer, reducing the demands of ATP production from anaerobic glycolysis, thereby delaying LIP

[johnno]

3 will be C, as D refers to lactate tolerance, whereas answer C describes how insufficient oxygen, therefore increased anaerobic glycolysis which will result in an accumulation of Blood Lactate

I put in wrong the first time sorry, I believe A is the answer/better answer. A is the more accurate answer than C, I believe as it is more specific to why lactate accumulates, than insufficient oxygen supply, but really they are both correct

[daryll31]

I agree Johno, 3 is A.

Not sure about question 2 then   
I guess we'll need someone else's opinion hey.

[tomfloyd]

I put in wrong the first time sorry, I believe A is the answer/better answer. A is the more accurate answer than C I believe as it is more specific to why lactate accumulates, than insufficient oxygen supply, but really they are both correct

The answer is C, in regards to A, blood lactate can accumulate (increase in concentration) without exceeding LIP, which is what a stipulates.
C is the correct answer, as insufficient oxygen, increases the demand from anaerobic glycolysis, resulting in increased lactate, i.e an accumulation.

A refers to LIP, where as C explains why lactate accumulates

[daryll31]

The answer is C, in regards to A, blood lactate can accumulate (increase in concentration) without exceeding LIP, which is what a stipulates.
C is the correct answer, as insufficient oxygen, increases the demand from anaerobic glycolysis, resulting in increased lactate, i.e an accumulation.

A refers to LIP, where as C explains why lactate accumulates

Yeah you do have a fair point! I can see where you are going with this. But I am not sure at this point because they are both relatively correct.

[johnno]

The answer is C, in regards to A, blood lactate can accumulate (increase in concentration) without exceeding LIP, which is what a stipulates.
C is the correct answer, as insufficient oxygen, increases the demand from anaerobic glycolysis, resulting in increased lactate, i.e an accumulation.

A refers to LIP, where as C explains why lactate accumulates

Fair point, but if you have production of anything in PE or not, it will be the result of the levels of production of the 'thing' being greater than the level of removal of the 'thing.' Also, for example in a vertical jump action there will be negligible contribution from AG system, it will all be stored ATP itself, providing it had not already been depleted. In this effort, there is insufficient oxygen for the exercise but no accumulation of lactate.

[johnno]

I said consent instead of informed consent, will that matter?

Don't know yet, but it will probably matter as 'informed' implies the participant has been told of the risks and how the test is run, etc. 'Consent' only implies the participant has signed off to do the test.

[KBKO]

For question 4b would they accept the training principle of duration or detraining? I put duration.