Short term effects of exercise

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  • Created by: holly.t25
  • Created on: 09-02-21 15:39
Why is there an increase in muscle fatigue as a short term effect on the muscular system?
Due to lactate accumulation- if there isn't enough oxygen getting to the working muscles during exercise, lactic acid will build up in them
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What is cardiac output? Does it increase, decrease or stay the same during exercise? This is a short term effect on the cardiovascular system
The amount of blood pumped out of the left ventricle per minute. This increases during exercise due to the demand in oxygen at the working muscles and the removal of carbon dioxide
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What is stroke volume? Does it increase, decrease or stay the same during exercise? This is a short term effect on the cardiovascular system
The amount of blood pumped out per beat. It increases during exercise because of the demand in oxygen at the working muscles and the removal of carbon dioxide
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What are 2 other short term effects of exercise on the muscular system?
Redistribution of blood to the working muscles as the blood carrying oxygen is needed at the working muscles for energy. Working muscles produce heat as a by-product of aerobic and anaerobic respiration.
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Short term effect on the respiratory system: Increase in tidal volume, why does this happen and what is it?
It is the amount you breathe in and out per normal breath (this is usually 500ml at rest!) It increases due to needing to inhale as much oxygen as possible, needed to get to the working muscles for energy, and for the removal of carbon dioxide.
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What happens to your heart rate during exercise?
It increases because the blood needs to be pumped around the body faster so that oxygen can get to the working muscles for energy, therefore, the heart beats faster.
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Short term effect of exercise on the cardiovascular system:
Redistribution of blood flow (shunt)
In terms of vasoconstriction and vasodilation- increasing and decreasing the blood flow activity to different areas of the body. It is redistributed to the working muscles for oxygen supply for energy and to remove carbon dioxide.
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What is the equation for cardiac output?
Stoke volume x BPM= Q
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What is the equation for minute ventilation?
TV x F= VE
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What is minute ventilation?
The amount you breathe in per minute, measured in litres
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Does your frequency and minute ventilation increase, decrease or stay the same during exercise, why?
They both increase. This is because the working muscles are demanding more oxygen and for the removal of carbon dioxide, therefore, you breathe more frequently for oxygen and so your minute ventilation increases as a result (as well as because your TV inc
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Card 2

Front

What is cardiac output? Does it increase, decrease or stay the same during exercise? This is a short term effect on the cardiovascular system

Back

The amount of blood pumped out of the left ventricle per minute. This increases during exercise due to the demand in oxygen at the working muscles and the removal of carbon dioxide

Card 3

Front

What is stroke volume? Does it increase, decrease or stay the same during exercise? This is a short term effect on the cardiovascular system

Back

Preview of the front of card 3

Card 4

Front

What are 2 other short term effects of exercise on the muscular system?

Back

Preview of the front of card 4

Card 5

Front

Short term effect on the respiratory system: Increase in tidal volume, why does this happen and what is it?

Back

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