PE paper 1 - long and short term effects of excersize

Question 1

what is heart hypertrophy

Answer 1

The increased size of the heart muscle will increase Stroke Volume (volume of blood pumped out of the hear per beat) and Cardiac Output (volume of blood pumped out of the heart per minute).

Question 2

What are 5 long term benefits of exercise on the heart

Answer 2

Stronger heart- Higher volume of blood ejected per beat/increased cardiovascular endurance

Lower resting heart rate- Higher volume of blood ejected per beat so the heart does not need to beat as often

Bradycardia- Resting heart rate below 60

Reduced risk of heart attack/CHD

Capillarisation- Increased number of capillaries over the heart muscle means increased rate of gaseous exchange.

Question 3

6 positive long term effects of excersise on the respiratory system

Answer 3

Increased TIDAL VOLUME and MINUTE VOLUME
Increased efficiency of the respiratory system

Increased capillarisation

Increased surface area of alveoli

Increased efficiency to take in O2 and supply to muscles

Increased strength of respiratory muscles

DECREASED risk of lung disease

Question 4

4 long term effects of exercise on performance

Answer 4

Increase endurance

Quicker recovery time

Increase performance levels

Participation in running at older age

Question 5

10 long term benefits to excersise on muscles

Answer 5

Muscle Hypertrophy - An increase in muscle size due to training.

Reduced risk of injury

Greater potential for energy production

Increase removal of lactic acid

Increase recovery rate

Increase tolerance to lactic acid

Increase muscle flexibility

Increase muscle strength

Increase muscular endurance

Increase speed of contraction