Oxygen uptake and delivery

The energy required for movement comes specifically from:

• the breakdown of glycerol

• the breakdown of glycogen

• the breakdown of creatine phosphate

• the breakdown of adenosine triphosphate (ATP)

When does oxygen deficit occur?

• Before the exercise

• During steady state

• Any time where the anaerobic glycolysis or ATP-PC energy systems are the predominant producers of ATP

• Any time where the aerobic glycolysis energy system is the predominant producer of ATP

A person’s maximum steady state is at the highest intensity when:

• Oxygen demand to the working muscles is greater than oxygen supply

• Oxygen supply to the working muscles is greater than oxygen demand

• Oxygen supply to the working muscles is equal to oxygen demand

• Lactate production is greater than lactate removal

• Lactate production is less than lactate removal

The predominant energy system for providing energy during a 50m freestyle race is:

• ATP-PC system

• Anaerobic glycolysis

• Aerobic glycolysis

• None of the above as they are all contributing

During energy system interplay:

• Only one system is active at a time

• Only one system is dominant at a time

• The ATP-PC system is always the preferred system

• The aerobic system is dominant during most exercises

What is OBLA?

• Where oxygen consumption remains above resting levels at the end of the activity

• When oxygen supply to the working muscles equals demand

• When inorganic phosphates start to impact on the functioning of the ATP-PC system

• When intensity is at a level where lactic acid starts to accumulate in the blood

What is the lactate inflection point?

• Amount of blood lactate after 4mmols

• The balance point between lactate entry into and removal from the blood

• The highest oxygen deficit possible

• The line above the curve at the start of activity

The predominant energy system for ATP at the Lactate Inflection point would be

• ATP-PC energy system

• Anaerobic glycolysis energy system

• Aerobic energy system

Which best describes the use of the ATP-PC energy system?

• High rate of ATP and High yield

• High rate of ATP and Low yield

• Low rate of ATP and High yield

• Low rate of ATP and Low yield

What does the term 'EPOC' stand for:

• Excess Post Exercise Oxygen Consumption

• Exercise Pre Oxygen Consumption

• Exercise Post Excess Oxygen Consumption

• Excess Pre Oxygen Consumption