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anaerobic & aerobic
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Cards (80)
What is the main fuel required for exercise according to the study material?
Carbohydrate
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Why is water important in the breakdown and transport of carbohydrates?
Water allows blood to move quickly and smoothly through the
blood vessels
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What nutrient is primarily used for growth and repair of muscles but can also produce energy in extreme conditions?
Protein
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Under what conditions is fat used as a rich source of energy?
At a
low intensity
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What determines the predominant energy systems used during exercise?
Intensity
,
duration
, and nutrients
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What is the primary difference between aerobic and anaerobic exercise?
Aerobic uses
oxygen
, anaerobic does not
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What is the primary fuel source for the aerobic energy system?
Glucose from
carbohydrates
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Why is the Creatine Phosphate (CP) system used for explosive, high-intensity, short-duration exercises?
It supplies energy faster than all other
energy systems
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What is the waste product of the Lactic Acid System?
Lactic acid
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What happens when an athlete reaches the anaerobic threshold?
The aerobic system cannot supply energy efficiently enough, so the
lactic acid
system is used
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What is VO2 max?
The maximal volume of
oxygen
that the body can take in and use
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How is the oxygen debt repaid after exercise?
By
reducing
the
intensity
of
exercise
, allowing more
oxygen
into the
body's
systems
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What are the waste products of the aerobic energy system?
CO2
and
H2O
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What is the aerobic threshold?
The
point
at which
training
becomes predominantly
aerobic
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What is the equation for aerobic respiration?
Glucose
+
Oxygen
=
Energy
+
Carbon dioxide
+
water
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What are the drawbacks of anaerobic respiration?
Fuel quickly runs out,
lactic acid
is produced, causing fatigue and discomfort
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What type of respiration is used in sprinting?
Anaerobic
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What type of respiration is used in hiking?
Aerobic
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What type of respiration is used in football?
Both
aerobic
and
anaerobic
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What are the short-term effects of exercise on the cardiovascular system?
Increase in
stroke volume
, heart rate,
cardiac output
, and blood pressure
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What are the short-term effects of exercise on the respiratory system?
Increase in breathing rate, tidal volume, and
minute ventilation
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What happens to the muscular system during short-term exercise?
Increase in
temperature
,
pliability
, and muscle fatigue
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What is the effect of exercise on the skeletal system?
Improved
mobility
at the joint allowing easier movement
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What are the key differences between the aerobic and anaerobic energy systems?
Aerobic: Uses
oxygen
, low to moderate
intensity
, long
duration
, produces CO2 and H2O
Anaerobic: Does not use oxygen, high intensity, short duration, produces
lactic acid
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What are the benefits and limitations of the Creatine Phosphate (CP) system?
Benefits:
Supplies energy faster than other systems
No waste products produced
Benefits muscular strength, power,
SAQ
, reaction time
Limitations:
Short duration (0-10
seconds
)
CP stores deplete quickly
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What are the benefits and limitations of the Lactic Acid System?
Benefits:
Produces energy at
moderate
to
high intensity
Benefits power,
muscular endurance
, and speed
Limitations:
Produces lactic acid, causing fatigue and discomfort
Short duration (
60-90 seconds
)
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What are the benefits and limitations of the Aerobic Energy System?
Benefits:
Produces energy at low to medium intensity for long duration
Benefits
cardiovascular
endurance and recovery
Limitations:
Requires oxygen
Slower energy production compared to
anaerobic
systems
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What are the key differences between trained and untrained athletes in terms of anaerobic threshold?
Untrained athletes reach anaerobic threshold at
70-80%
VO2 max
Elite-trained
athletes reach anaerobic threshold at
85-90%
VO2 max
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What are the short-term effects of exercise on the cardio-respiratory system?
Increase in
oxygen uptake
and transport
Increase in
CO2
removal
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What are the short-term effects of exercise on the energy system?
Increase in
lactic acid
production
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What are the short-term effects of exercise on the muscular system?
Increase in
temperature
Increased pliability (elasticity)
Muscle fatigue
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What are the short-term effects of exercise on the skeletal system?
Improved mobility at the
joint
allowing easier movement
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What are the key differences between aerobic and anaerobic respiration?
Aerobic: Requires
oxygen
, slower, produces CO2 and H2O
Anaerobic: Does not require oxygen, faster, produces
lactic acid
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What are the biproducts of aerobic respiration?
Water (H2O)
Carbon dioxide
(
CO2
)
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What are the biproducts of anaerobic respiration?
Lactic acid
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What are the drawbacks of anaerobic respiration?
Fuel quickly runs out
Lactic acid
is produced, causing fatigue and discomfort
Short duration
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What type of respiration is used in sprinting?
Anaerobic
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What type of respiration is used in hiking?
Aerobic
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What type of respiration is used in football?
Both
aerobic
and
anaerobic
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What are the key differences between the aerobic and anaerobic energy systems in terms of fuel, duration, and intensity?
Aerobic: Fats, carbs, proteins;
2-90 minutes
; moderate-low intensity
Anaerobic: Carbohydrates (
glycogen
);
60-180 seconds
; moderate-high intensity
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