Mark the equation which represents how our having a strong aerobic system can help to remove lactic acid after exercise.

Lactic Acid + Oxygen = Water + Carbon Dioxide + Glucose

Lactic Acid + Carbon Dioxide = Water + Oxygen + Energy

Lactic Acid + Oxygen = Carbon Dioxide + Glucose

Lactic Acid + Carbon Dioxide = Glucose + Oxygen

Mark all factors that can affect the speed of recovery of a performer.

level of aerobic fitness – a fitter athlete recovers quicker;

intensity of the exercise – heart rate during intense activity will be higher, taking longer to recover;

sleep / level of tiredness prior to exercise;

the demand of muscles for oxygen;

Describe long-term changes to the heart as a result of regular aerobic exercise. Refer to the left ventricle in your answer.

the cardiac muscle and increases in strength;

walls of the ventricle thicken;

increase in size of the right ventricle;

Suggest TWO ways that regular aerobic exercise develops the efficiency of the circulatory and respiratory systems and TWO more improvements to performance.

more efficient gaseous exchange;

the muscles will produce significantly more Lactic Acid

Suggest two of the long-term effects of regular aerobic training on skeletal muscles.

more capillaries form around the muscles / muscles can work for longer / harder as they become more efficient at using oxygen;

muscles become thicker / hypertrophy / stronger / increase the power of contraction;

more capillaries form around the alveoli / heart rate at rest is lower / increased production of Lactic Acid;

muscles get tired faster / hypertrophy / stronger / increase the speed of contraction;

higher production of lactic acid / left ventricle wall becomes thicker / less tolerance to lactic acid / muscles get stronger

Mark three benefits that regular anaerobic training may provide to a performer.

improves fast-twitch muscle fibers;

increases speed / strength / power;

increased oxygen debt tolerance;

increases number of slow-twitch muscle fibers;

slows metabolism and therefore slows recovery;

Suggest two possible disadvantages for a performer of only using anaerobic training methods.

difficult to maintain technique at high intensity;

it can be difficult to maintain the level of effort on a regular basis;

will only develop the muscles, but not the heart in general;

make harder to lose weight as only aerobic exercises can help with it;

no adaptation to cardio-vascular system;

Explain how lactic acid is formed in muscles and the effect it has on a performer retrospectively.

lactic acid is formed when the supply of oxygen to muscles is insufficient for the work they are required to do / causes muscle fatigue;

as muscles continue to work the level of lactic acid builds up / may cause the performer to work for a longer period of time;

lactic acid is formed during high-intensity work / does not affect muscles and movement in general;

lactic acid is formed during aerobic activities / muscles become more efficient;

without oxygen, glucose can provide energy for a longer period of time / helps the performer to recover faster;

Explain the immediate effects of high-intensity exercise on a performer.

heart rate increases to move blood to the muscles at a faster rate to keep up with the demand of muscles;

low heart rate as a short term effect from exercising;

breathing decreases to provide the same volumes of oxygen (to the muscles);

blood is kept in the organs not directly involved in the activity;

Describe TWO effects of long-term aerobic exercise on the circulatory system AND a benefit of each effect for a performer.

increased cardiac output / faster blood supply so performer can last the whole game;

lower resting heart rate / more efficient circulatory system so performer needs less effort to achieve the same level of performance;

increase in the size and strength of the heart / same blood flow so performer cannot work at a greater intensity;

increase in the volume of blood pumped / better gas exchange so the performer can recover slower and steady;

arteries grow larger and become more elastic / decreased oxygen content of blood supply

Explain two changes to the efficiency of the circulatory and respiratory systems that result from exercise can benefit a performer.

more efficient gaseous exchange / more efficient gaseous exchange;

recovery rate increases / recover from exercise more quickly;

lower resting heart rate / the heart rate will reach maximum rate faster;

increased capillarisation / increases the supply of carbon dioxide and blood flow;

oxygen debt tolerance decreases / improves the performance

Explain two factors that affect recovery time after exercise.

age – recovery period generally increases with age;

level of fitness – a performer with a higher level of cardiovascular fitness will be more efficient at removing lactic acid;

intensity of exercise undertaken - more intense exercise is faster to recover;

gender – females generally recover more quickly than males;

diet – a good diet provides the vitamins required for recovery;

Pick the three alternatives which explain why a performer’s resting heart rate reduces as they become fitter.

larger stroke volume / greater volume of blood pumped in each heart beat;

cardiac output increases so more blood is pumped in one minute;

requires fewer beats to achieve the blood supply to muscles;

cardiac muscle increases in extracting the carbon dioxide from the blood;

cardiac muscle increases in electric impulses;

A performer undertakes a cardio-vascular fitness test that involves running on a treadmill at constant intensity. Their heart rate during the test and during recovery is recorded. After six months of aerobic training the performer retakes the fitness test. What do we expect to find in relation to his Heart Rate at rest and speed of recovery, respectively?

heart rate increases at a slower rate / faster recovery

heart rate increases at a faster rate / slower recovery

heart rate increases at a slower rate / slower recovery

heart rate increases at a faster rate / faster recovery

State two long-term benefits of exercise.

improvements in health / less likely to suffer from heart disease

improve fitness / able to sustain exercise for longer

improvements in mental health / more able to cope with stress

improvements in performance / lift heavier weights

Aerobic and Anaerobic Systems / Effects of Exercise / Recovery

Authored by Caetano Santoro

Science, Physical Ed

10th - 11th Grade

Used 27+ times

Aerobic and Anaerobic Systems / Effects of Exercise / Recovery

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Explain Aerobic exercises based on Duration, Intensity and Energy source respectively:

Short period of time / high intensity / glucose

Longer period of time / high intensity / Oxygen combined with glucose

Longer period of time / low to moderate intensity / Oxygen combined with glucose

Longer period of time / low to moderate intensity / glucose

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Explain Anaerobic exercises based on Duration, Intensity and Energy source respectively:

Short bursts / High intensity / glucose combined with oxygen

Short bursts / High intensity / glucose

Short bursts / low to moderate intensity / glucose

Longer periods of time / High intensity / glucose

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Define Lactic Acid:

a waste product formed in the muscles during anaerobic respiration, causing the muscle to work for a longer period of time

waste product formed from aerobic exercises alongside carbon dioxide, water and energy

the process of taking extra oxygen needed to compensate the to remove waste products

a waste product formed in the muscles during anaerobic respiration, causing the muscle to fatigue

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The following equation represents:

Oxygen + Glucose = Energy + Water + Carbon Dioxide

Aerobic System source of energy and waste products

Anaerobic System source of energy and waste products

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The following equation represents:

Glucose = Energy + Lactic Acid + CO2

Anaerobic System source of energy and waste products

Aerobic System source of energy and waste products

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Define EPOC:

The effect of exercise in our heart, causing the walls from the left ventricle to become stronger and pump the blood harder

The amount of extra oxygen needed by muscle tissue to oxidize lactic acid following exercise

The waste product formed in the muscles during anaerobic respiration, causing the muscles to fatigue

The process of taking in additional oxygen needed to remove the lactic acid created by anaerobic exercise

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Mark the alternative which is no related to Anaerobic exercise:

High Intensity

Lactic Acid

Oxygen Dept

Glycogen

Oxygen + Glucose

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Aerobic and Anaerobic Systems / Effects of Exercise / Recovery

Explain Aerobic exercises based on Duration, Intensity and Energy source respectively:

Explain Anaerobic exercises based on Duration, Intensity and Energy source respectively:

Define Lactic Acid:

The following equation represents:

Oxygen + Glucose = Energy + Water + Carbon Dioxide

The following equation represents:

Glucose = Energy + Lactic Acid + CO2

Define EPOC:

Mark the alternative which is no related to Anaerobic exercise:

The amount of extra oxygen needed by the muscle tissue to oxidase lactic acid following exercise. We are talking about:

Mark the equation which represents how our having a strong aerobic system can help to remove lactic acid after exercise.

The ability to recover after exercise is clearly affected by many factors. Which of the following is NOT a factor affecting the recovery of a subject?

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Aerobic and Anaerobic Systems / Effects of Exercise / Recovery

Explain Aerobic exercises based on Duration, Intensity and Energy source respectively:

Explain Anaerobic exercises based on Duration, Intensity and Energy source respectively:

Define Lactic Acid:

The following equation represents:Oxygen + Glucose = Energy + Water + Carbon Dioxide

The following equation represents:Glucose = Energy + Lactic Acid + CO2

Define EPOC:

Mark the alternative which is no related to Anaerobic exercise:

The amount of extra oxygen needed by the muscle tissue to oxidase lactic acid following exercise. We are talking about:

Mark the equation which represents how our having a strong aerobic system can help to remove lactic acid after exercise.

The ability to recover after exercise is clearly affected by many factors. Which of the following is NOT a factor affecting the recovery of a subject?

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The following equation represents:

Oxygen + Glucose = Energy + Water + Carbon Dioxide

The following equation represents:

Glucose = Energy + Lactic Acid + CO2