Paper 1 - Short Term Effects Of Exersice

Question 1

Short term effects of exercise on the muscular system.

Answer 1

1. Muscle temperature increases
2. Lactic acid is produced
3. Blood is redistributed to the working muscles.

Question 2

Short term effects of exercise on the muscular system. 1. Muscle temperature increases.

Answer 2

1.muscle temperature increases.
-as muscles work they need to create energy, a by product of creating energy is an increase in muscle temperature.
-increase in muscle temperature means muscles are more flexible and injuries are less likely to occur.

Question 3

Short term effects of exercise on the muscles system. 2. Lactic acid is produced.

Answer 3

2.lactic acid is produced.
-lactic acid is a byproduct of exercising without using oxygen and results in pain, which is a negative effect on performance and can make and athlete stop.
-once exercise has stopped, oxygen breathed in helps convert lactic acid into water and CO2 therefore taking away the pain in the muscles.

Question 4

Short term effects of exercise on the muscular system. 3.blood is redistributed to the working muscles.

Answer 4

3.blood is redistributed to the working muscles.
-vascular shunt is where more blood goes to the working organs.
-at rest is the opposite.

Question 5

Short term effects of exercise in the cardiovascular system.

Answer 5

1. Heart rate increases
2. Stoke volume increases
3. Cardiac volume increases
4. Vascular shunting increases

Question 6

Short term effects of exercise in the cardiovascular system. 1.heart rate increases.

Answer 6

1.heart rate increases.
-when you start exercising your heart rate increases to supply the working muscles with more blood which carries oxygen.
-anticipatory rise is where your heart rate increases due to an increase in adrenaline as you prepare to start your sporting activity.

Question 7

Anticipatory rise

Answer 7

anticipatory rise is where your heart rate increases due to an increase in adrenaline as you prepare to start your sporting activity.

Question 8

Short term effects of exercise in the cardiovascular system. 2.stoke volume increases.

Answer 8

2.stroke volume increases.
-an increase means again more blood and therefore more oxygen reaches the muscles meaning more energy can be created allowing the performer to continue working at high intensity.

Question 9

Short term effects of exercise in the cardiovascular system. 3.cardiac output increases.

Answer 9

3.cardiac output increases.
- HR*(times by)SV=Q therefore HR and SV have increased so Q must also increase.

Question 10

Short term effects of exercise in the cardiovascular system. 4.vascular shunting occurs.

Answer 10

4.vascular shunting occurs.
-redistribution of blood to the working muscles.

Question 11

Short term effects of exercise on the skeletal system

Answer 11

Skeletal system
-There are no short term effects of exercise on the skeletal system.

Question 12

Short term effects of exercise on the respiratory system.

Answer 12

1. Respiratory rate increases
2. Minute ventilation increases
3. Tidal volume increases

Question 13

Short term effects of exercise on the respiratory system. 1.respiratory rate increases.

Answer 13

1.respiratory rate increases
-as we exercise we require more oxygen to create energy.
-for this to occur we breathe quicker allowing more oxygen to reach out muscles.

Question 14

Short term effects of exercise on the respiratory system. 2.minute ventilation increases.

Answer 14

2.minute ventilation increases.
-the higher out minute ventilation, the more oxygen we can get into out muscles for that minute of performance.

Question 15

Short term effects of exercise on the respiratory system. 3.tidal volume increases.

Answer 15

3.tidal volume increases.
-the tidal volume is the volume of air inspired and expired during one breath.
-as we exercise we require more oxygen to create energy.
-for this to occur we also breath deeper allowing more oxygen to reach out muscles.