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WorksheetsHPSC Unit 3 AOS 2
Total questions: 30
Worksheet time: 15mins
Energy system interplay refers to
All three energy systems working together
One energy system providing more energy than the other two systems at any point in time
Three energy systems working together and one kicking in as the others drop off
The PC system providing most energy first, then the aerobic system then the aerobic system
When using the anaerobic glycolysis energy system
Most of the ATP is produced from fats
Twice as much ATP is released when compared to the ATP-PC system
Activity will only be possible for another 45 seconds
LIP is being trained
In a marathon, two competitors enter the stadium together and the final sprint will determine the winner. Which energy system is providing the most ATP in the final sprint to the finish line?
The ATP-PC energy system
The alactacid system
The aerobic energy system
The anaerobic glycolysis system
Carbohydrates require
Less oxygen than fats to break down
More time than protein to break down
More oxygen than protein to break down
More time than fats to break down
Improving the capacity of the anaerobic glycolysis system will also improve
Lactic acid removal
Lactate shuttling
LIP
Lactate tolerance
When contrasting the energy systems, the ATP-PC system has
The fastest rate of production
The largest capacity
A slower rate than the anaerobic glycolysis system
A larger capacity than the aerobic energy system
A 30 minute jog at about 50% max HR would predominantly use
Triglycerides
Free fatty acids
Carbohydrates
Proteins
When an athlete starts to jog for part of their warm up, the ATP-PC system
Is depleted at a faster rate than at higher intensities
Calls upon less carbohydrates than at higher intensities
Provides ATP for longer than at higher intensities
Splits ATP at a faster rate than at higher intensities
An acute response to exercise is
A response that lasts beyond the exercise period
A response that lasts for the duration of the exercise period
A response that lasts for the duration of the exercise and the recovery period
A long-term physiological response
When exercise commences, the demand for oxygen and energy substrates
Increase
Decrease
Stay the same
Remain at resting levels
When exercise commences, ATP, PC and muscle glycogen levels
Increase
Decrease
Stay the same
Remain at resting levels
Increased rate of diffusion at the lungs results in
An increase in the amount of oxygen diffused into the blood from the alveoli
A decrease in the amount of carbon dioxide diffusing out of the blood into the alveoli
An increase in the amount of oxygen diffused into the alveoli from the blood
A decrease in the amount of carbon dioxide diffused out of the alveoli to the blood
Acute respiratory responses to exercise include
Decreased respiratory rate and tidal volume
Increased respiratory rate and tidal volume
Increased ventilation
Both B and C
When compared with a trained athlete, an untrained athlete will have
A higher stroke volume at rest and during maximal exercise
A lower stroke volume at rest and during maximal exercise
A lower heart rate at rest and during maximal exercise
A lower cardiac output at rest and during maximal exercise
During exercise, blood flow is
Redirected to the muscles and vital organs
Redirected to the working muscles and away from other organs
Redirected to the heart muscle, skin and brain
Maintained to vital organs and increased to working muscles
One acute muscular response to exercise is an increase in
Intramuscular glycogen levels
Intramuscular triglyceride levels
Intramuscular ATP and PC levels
Muscle lactate levels
The lactate inflection point (LIP) indicates the point at which
H+ production exceeds H+ removal
Maximal lactate production is balanced with maximal lactate removal
Most ATP is being produced anaerobically
Most ATP is produced from carbohydrates rather than fats
Elevated core temperatures can contribute to fatigue by
Causing the body to redirect blood to the skin and away from the muscles in an effort to increase cooling
Increasing hypo-hydration levels
Decreasing gaseous exchange at the lungs
Causing an inward and upward pressure gradient increase
During oxygen deficit, the
Body cannot supply oxygen at the rate required to be working aerobically
Exercise intensity must decrease because of the accumulation of H+ ions
Recovery time is greater than a passive recovery
Body cannot supply oxygen at the rate required to be working aerobically
The average speed of the 200-meter sprint is lower than that of the 100- meter sprint because of which fatigue factor?
PC depletion
H+ accumulation
Elevated heart rate
Increased systolic pressure
PC recovery rates are fastest when someone performs
An active recovery
Aerobic training and conditioning
A passive recovery
A work: rest recovery of 1:1
Foam rollers are often incorporated into a passive recovery because they increase
The rate of DOMS
Circulation and removal of wastes
Electrolyte absorption
Ca++ resynthesis
Hypertonic drinks consumed within a 45-minute period of finishing a training session will
Decrease the reliance of phosphocreatine
Increase the rate of protein absorption
Lessen the amount of glycogen drained from the liver
Increase the rate of hydration
An active recovery is often taken because it
Keeps oxygen levels above resting levels while H+ is oxidized
Promotes a muscle pump that improves the venous return to the heart
Lessens the likeliness of DOMS
All of the above
Ventilation is
A respiratory response to exercise
Controlled by the respiratory centre in the brain
The product of tidal volume and respiratory rate
All of the above
Acute cardiovascular responses include
Decreased sub maximal heart rate
Increased maximal heart rate
Decreased heart rate at VO2 max
Decreased maximum heart rate
The ATP-PC energy system is quickest to provide energy because it
Involves the least complex chemical reactions to split PC
Has plenty of stored PC
Doesn’t need oxygen
Splits ATP with the greatest of ease
Which of the following is most important to a 1500-meter runner
Low aerobic threshold
High lactate threshold
High VO2 Max
High aerobic threshold
When using the aerobic energy system
Any H+ that may have accumulated will start to be broken down
Fats are used in preference to carbohydrates
The rate of ATP resynthesis is faster than that of both the anaerobic energy systems
The yield of ATP is less than that of the anaerobic glycolysis system
Following a 1500-meter sprint which energy system would take the longest to recover?
ATP-PC
Anaerobic Glycolysis system
Alactacid system
Aerobic energy system
