Fatigue
What is the likely cause of fatigue to the ATP-PC system?
Fuel depletion
Explain the difference between active and passive recovery?
In an active recovery you keep moving and keep an elevated HR
What does LIP stand for?
Lactate Inflection Point
What is hyperthermia?
Elevated temperature
What topic did we study in Step Up Week?
Skill Acquisition
List 3 fatigue mechanisms
Thermoregulation
Accumulation of by-products
Fuel depletion
Explain what is meant by the term muscle pump?
The muscles are contracting during active recovery and forcing the blood back through the veins.
What energy system is predominant when LIP has been reached?
Aerobic system
What are 2 factors that would determine how much you fatigue in an event or sport?
Intensity
Duration
Environment
Fitness level
What colour is Mr Hobbs' car?
Red
What is the difference between central fatigue and peripheral fatigue?
One occurs inside the muscle the other occur in the general body
List 3 sports in which you would perform a passive recovery and why.
High Jump
Shot put
Javelin
It allows faster restoration of PC
Explain what LIP is
The last intensity at which the rate of lactate production and removal are equal.
If you wanted to fully restore the ATP-PC system roughly how long would you need to wait?
3-10mins
What's the formula for area of a circle?
Pie times r squared
Give 2 examples of peripheral fatigue?
Fuel depletion
By-product build up
If you have worked past LIP what recovery would be best and why?
Active recovery would be best.
The increased blood flow will allow for quicker removal of by-products.
Explain why a better aerobic fitness will increase the intensity before hitting LIP?
Having a better aerobic fitness will mean less reliance on the anaerobic system and therefore less H+ ion build up.
What was the difference between relative VO2 max and absolute VO2 max?
Absolute VO2max is the total amount of oxygen that an athlete can take in, transport around and use.
Relative VO2max takes into account the persons body weight.
Who has been running free webinar's (Links have been posted on Edmodo)?
Rob Malpeli
What is the most likely cause of fatigue in a marathon? How can you delay the onset of this?
-Thermoregulation - stay hydrated, run under cool showers.
Fuel depletion - nutrition in the lead up and taking on carbs during race.
Why does PC restore faster when at rest?
PC is restored in the liver. More oxygen is delivered to the liver at rest compared to active recovery/work therefore the liver can produce more PC.
Why is the aerobic system the predominant system when LIP occurs?
Because when LIP occurs you are working at a sub maximal intensity which means you will be working aerobically.
Explain 2 physiological responses to hyperthermia and how this causes fatigue?
Increased blood flow to the surface which results in vasoconstriction at the muscles.
Reduced blood volume due to increased sweat rates which results in the heart having to work harder.
How many marks is the end of year exam?
How many multi choice questions are there?
How long is writing time?
How long is reading time?
120
15
120 mins
15 mins