What is released when ATP loses its third phosphate (Pi)?

How many food fuels are broken down to release energy for ATP resynthesis?

Which fuel source is preferred at rest or low intensities?

Why are fats preferred as a fuel source at rest or low intensities?

What process involves the breakdown of lipids to release energy?

Which fuel source is preferred during exercise?

Why are carbohydrates preferred as a fuel source during exercise?

Which of the following is stored as glycogen in the liver and muscles?

Which of the following is rarely used as a dominant fuel source?

What is the yield of ATP per molecule of creatine phosphate?

How can glycogen sparing be achieved during an endurance event?

The high jump event involves jumpers who rest for 3 minutes between each maximal effort jump. What would be the dominant fuel used to provide energy for a high jumper?

There are a variety of fuels used to resynthesise ATP within the human body. Which of the following is not a fuel used for ATP resynthesis?

The 10km World Record is held by Kenenisa Bekele with a time of 26:17.53. What is the dominant fuel used in a 10km run?

Which of the following energy systems provides energy for ATP resynthesis through a relatively simple chemical breakdown of PC?

Which energy system is characterized by an incomplete breakdown of glycogen without the presence of oxygen?

Which energy system has a high yield and involves the Krebs cycle and electron transport chain?

Which energy system is dominant when the intensity of activity is submaximal, usually less than 85% of MHR?

Which energy system has a very fast rate of ATP production but a low yield of ATP?

Which energy system is limited by the accumulation of metabolic by-products?

Which energy system involves the use of fats as a dominant fuel after glycogen stores are depleted?

Which energy system uses PC (phosphocreatine) as its primary fuel?

Which energy system has a duration of up to 10 seconds and is considered very short?

What is the yield of ATP in the anaerobic glycolysis energy system?

Which energy system is primarily used during a marathon?

What happens to PC stores after 10 seconds into a race?

How long does it take for glycogen stores to deplete during an event?

What can be done to counter glycogen depletion before an event?

What is a by-product of anaerobic glycolysis that inhibits muscular contraction?

What happens to blood flow when working aerobically to maintain body temperature?

What is the result of decreased blood flow to the working muscles during aerobic activity?

What is the chemical equation for the process that occurs when glucose and oxygen are used during aerobic activity?

What effect does excessive sweating due to high temperature have on the body?

What type of recovery involves low-intensity exercise for 5-10 minutes after an event?

Which of the following is NOT a benefit of active recovery?

What is a key characteristic of passive recovery?

Which recovery method should be used if the ATP-PC system is dominant?

What percentage of PC is replenished in 3 minutes during passive recovery?

The rate and yield of the ATP-PC system are best described as

The rate of ATP production and amount of ATP produced by the body’s three energy systems aren’t all the same. Which of the following is true for the aerobic system?

The 400m World Record is held by Wayde van Niekerk of South Africa, with a time of 43.03 seconds. As van Niekerk is running along the home straight (final 100m), what would be the main cause of fatigue?

There are many sports for which an active recovery is preferred. Which of the following events requires an active recovery?

What is the dominant energy system for short duration high intensity efforts?

What is the main fatigue mechanism in the final 100m of a 400mrace for van Niekerk?

What type of recovery is most suitable for repeated high intensity efforts in basketball?

What is the dominant energy system for El Guerrouj during a 1500m race?

What would cause fatigue if El Guerrouj ran faster at 10.4 m/s?

At all times, how many energy systems contribute to energy production?

What happens to the aerobic system in a continuous event once it becomes dominant?

What is an example of an intermittent event?

During high-intensity, short-duration movements in an intermittent event, which energy system is predominantly used?

In an intermittent event, when is the aerobic system primarily used?

Which of the following does not significantly affect the relative contributions of the 3 energy systems?

James runs a series of repeated high intensity efforts in his basketball game, including multiple sprints up the court, blocks and rebounds. There is no opportunity for recovery between efforts. The dominant energy system over this 30 second period is?

In the Tour Down Under, a cyclist has been riding for 40 minutes. He suddenly increases intensity while riding up a hill. What is the dominant energy system fueling this effort?

In an intermittent sport, which energy system is most likely dominant during repeated high intensity efforts without a break?

Once the aerobic system becomes dominant in a continuous event, what happens if there is a spike in intensity?

Which energy system is dominant when Jack sprints after resting on the bench and in maximal efforts such as punching the ball?

During periods of lower intensity, such as sitting on the bench and jogging in the backline, which energy system is dominant?

What occurs during the oxygen deficit phase at the start of exercise?

What is indicated by a plateau in all indicators (Q, ventilation, and blood lactate) of intensity during exercise?

What does EPOC stand for?

During which phase does the aerobic energy system become dominant?

What happens to oxygen supply during the recovery phase after exercise?

Following a lengthy training session, Jules finds he is still breathing heavily. His coach tells Jules that he is in EPOC. What does EPOC stand for?

Which energy system increases contribution most during oxygen deficit to meet the body’s demand for energy?