chapter 1c

Question 1

what is aerobic exercise

Answer 1

exercise in the presence of oxygen

Question 2

what is anaerobic exercise

Answer 2

exercise with absence/limited oxygen

Question 3

what does intensity mean

Answer 3

the amount of energy needed to complete an activity

Question 4

what is high intensity

Answer 4

a large amount of energy

Question 5

what is lactic acid

Answer 5

waste product produced as a result of anaerobic exercise

Question 6

what levels of exertion is aerobic exercise

Answer 6

low to moderate

Question 7

what are examples of aerobic exercise

Answer 7

• walking
• jogging
• marathons

Question 8

how is energy supplied in aerobic exercise

Answer 8

by breaking down foods, mainly glucose using oxygen

Question 9

what is the bodies preferred way of working

Answer 9

aerobically

Question 10

how long and what intensity do you work aerobically

Answer 10

long period of time at moderate intensity

Question 11

how long and what intensity do you work anaerobically

Answer 11

short period of time at high intensity

Question 12

how does anaerobic exercise leave the body feeling

Answer 12

breathless and tired

Question 13

what examples of anaerobic exercise

Answer 13

• sprinting
• shot put

Question 14

whats the equation for aerobic respiration

Answer 14

glucose+oxygen - energy+carbondioxide+water

Question 15

whats the equation for anaerobic respiration

Answer 15

glucose - energy+lactic acid

Question 16

are teams games:
- aerobic
- anaerobic
- both

Answer 16

both

Question 17

what does EPOC stand for

Answer 17

excess post-exercise oxygen consumption

Question 18

why does the body breathe heavily after strenuous exercise

Answer 18

to repay the oxygen debt

Question 19

how does the body remove lactic acid

Answer 19

the extra oxygen breathed in

Question 20

what are 3 immediate effects of exercise

Answer 20

• heart beats faster
• breathing rate increases
• hot/sweaty/red skin

Question 21

why does the heart beat faster?

Answer 21

so there’s more blood to supply the muscles with glucose

Question 22

is there a higher or lower gaseous exchange at lungs

Answer 22

higher

Question 23

does tidal volume get greater or lower

Answer 23

greater

Question 24

why does the body get hot

Answer 24

contracting muscles generate heat

Question 25

why does the body sweat

Answer 25

so the heat can be lost by evaporation

Question 26

why does the skin go red

Answer 26

the blood vessels near the surface vasodilate to lose heat by radiation

Question 27

what are 4 short term effects of exercise

Answer 27

- fatigue - dizziness - nausea - DOMS

Question 28

why does the body feel fatigue after exercise

Answer 28

muscles are swollen with fluids

Question 29

how is dizziness caused

Answer 29

- low blood sugar - drop in blood pressure

Question 30

how is nausea caused

Answer 30

- over-exertion - ending exercise to abruptly

Question 31

what does DOMS stand for

Answer 31

delayed onset of muscles soreness

Question 32

what is DOMS

Answer 32

an eccentric muscle contraction causing tiny tears in muscle fibres

Question 33

when a muscle fibre tears, are they stronger or weaker

Answer 33

stronger

Question 34

true or false: DOMS is a cramp

Answer 34

false DOMS are NOT a cramp

Question 35

what is hypertrophy

Answer 35

increase size of muscles

Question 36

how often do you have to exercise to lose weight

Answer 36

regularly

Question 37

repeated regular exercises lead to an improvement in muscle_________

Answer 37

endurance

Question 38

after a long period of exercising, do tendons and ligaments get more stable or less stable

Answer 38

more stable

Question 39

does flexibility, speed and agility improve over a long period of time

Answer 39

yes

Question 40

what is the better term for stamina

Answer 40

cardiovascular endurance

Question 41

what is cardiac hypertrophy

Answer 41

the heart gets stronger and bigger it can contract with greater force and pump out more blood

Question 42

why does cardiac output stay the same

Answer 42

the skeleton and major organs stay the same size

Question 43

what is the process of reducing the resting heart rate called

Answer 43

bradycardia

Question 44

how does an ice bath help post exercise

Answer 44

- constrict blood vessels and flush out waste products - reduce swelling - after the muscles warm up which increases blood flow

Question 45

how does a massage help post exercise

Answer 45

- can reduce joint pain - prevents or relieves muscle soreness - encourages blood flow preventing muscle fatigue