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March 04, 2026, 06:25:06 pm
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VCE123456789

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Question thread
« on: September 27, 2010, 10:24:48 pm »
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How can athlete extend the amount of time they are able to work at above 100 % of their VO2 maximum?
« Last Edit: September 27, 2010, 10:48:23 pm by VCE123456789 »
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lexitu

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Re: How is it possible for athletes to work above 100 % of their VO2 maximum?
« Reply #1 on: September 27, 2010, 10:27:26 pm »
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Extend?

Anaerobic training - e.g. short interval, etc.
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VCE123456789

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Re: How is it possible for athletes to work above 100 % of their VO2 maximum?
« Reply #2 on: September 27, 2010, 10:33:04 pm »
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Idont unnderstand still. please explain
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lexitu

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Re: How is it possible for athletes to work above 100 % of their VO2 maximum?
« Reply #3 on: September 27, 2010, 10:38:31 pm »
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I hate the way they have phrased this. It's a reoccurring question in PE exams.

What above 100% of VO2 max. means is that the intensity is greater then what it would be if you were exercising at 100% VO2 max. You can't physically consume more oxygen but you can rely on the anaerobic systems to increase your intensity momentarily. You are definitely in oxygen deficit if you are doing this.

So to extend the amount of time you can work above 100% VO2 max you need to train anaerobically to target adaptations such as increased PC stores and ATP-PC splitting enzymes, etc. These will allow you to sustain high-intensity physical activity for longer.
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VCE123456789

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Re: How is it possible for athletes to work above 100 % of their VO2 maximum?
« Reply #4 on: September 27, 2010, 10:43:34 pm »
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Alright cool i inderstand now. SO basically VO2 max is the maximum amount of O2 you can take up, transport and utilise per minute. So in order to work greater than 100 percent VO2 max you rely on the anaerobic energy systems (no O2 present/required) to provide energy and to increase intensity momentarily.
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lexitu

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Re: How is it possible for athletes to work above 100 % of their VO2 maximum?
« Reply #5 on: September 27, 2010, 10:44:50 pm »
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Yep spot on :)
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VCE123456789

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Re: How is it possible for athletes to work above 100 % of their VO2 maximum?
« Reply #6 on: September 27, 2010, 10:47:10 pm »
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Thanks
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lexitu

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Re: How is it possible for athletes to work above 100 % of their VO2 maximum?
« Reply #7 on: September 27, 2010, 10:48:18 pm »
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No worries :)
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VCE123456789

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Re: Question thread
« Reply #8 on: September 27, 2010, 10:49:20 pm »
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How would the energy system inerplay for a sprint cyclist differ to a 400 m runner, assuming the same performance time?
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lexitu

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Re: Question thread
« Reply #9 on: September 27, 2010, 10:53:32 pm »
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Hmm that's really hard. Any supporting data at all?
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VCE123456789

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Re: Question thread
« Reply #10 on: September 27, 2010, 10:55:30 pm »
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its from the nelson pe book. pg 115 Q 2a. Do u have a copy?
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Wally

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Re: Question thread
« Reply #11 on: September 27, 2010, 10:57:35 pm »
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well it says "sprint" cyclist, so maybe the cyclist's intensity would be greater??
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lexitu

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Re: Question thread
« Reply #12 on: September 27, 2010, 11:03:05 pm »
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Hmm okay interesting.

Intensity can't be overly greater because they are both in the race.

I think the sprint cyclist roughly maintains a power output throughout whereas a 400m runner (think Cathy Freeman Sydney 2000) has slight tactical variations in their speed. But I'm not exactly sure. The mechanics of the two racing styles would also need to be explored. Maybe there is something about the momentum gained during cycling, who knows. Very tough question.
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lexitu

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Re: Question thread
« Reply #13 on: September 27, 2010, 11:04:00 pm »
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It would be great if someone could get TYK answers off their teacher.
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Aqualim

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Re: Question thread
« Reply #14 on: September 28, 2010, 12:00:49 pm »
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Quote from: aleitu1 on September 27, 2010, 11:04:00 pm
It would be great if someone could get TYK answers off their teacher.

Which chapters you after?
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