Heat

Question 1

what is the human body temperature

Answer 1

37°C

Question 2

what is the human body temperatures daily rise and fall no more than

Answer 2

1°C

Question 3

what is thermoregulation

Answer 3

process of maintaining your internal core temperature at 37°C

Question 4

what do thermoreceptors do

Answer 4

detect changes in body temperature

Question 5

what type of control is thermoreceptors

Answer 5

intrinsic

Question 6

what is dehydration

Answer 6

loss of water due to sweat

Question 7

what is hyperthermia

Answer 7

significantly raised body temperature (39°C)

Question 8

what is cardiovascular drift + caused by

Answer 8

increased heart rate due to decreased stroke volume, caused by decreased blood plasma from being dehydrated when exercising in heat

Question 9

side effects of exercising in hot environment & cause (CVS) (6)

Answer 9

• causes dehydrated
• decreased blood plasma
• decreased blood volume
• decreased stroke volume
• increased heart rate to compensate
• to maintain same cardiac output

Question 10

side effects of exercising in hot environment & cause (respiratory system) (5)

Answer 10

• increased breathing rate
• caused by airways becoming constricted
• due to being full of mucus
• due to dehydration
• caused by dry conditions

Question 11

which two types of strength does hyperthermia affect

Answer 11

• maximal
• explosive

Question 12

which energy system does hyperthermia affect

Answer 12

aerobic

Question 13

which energy system does hyperthermia not affect

Answer 13

anaerobic

Question 14

why are aerobic events affected by hyperthermia

Answer 14

cardiovascular drift

Question 15

how might a football event limit the effects of hyperthermia (3)

Answer 15

• water breaks
• late night kick off
• air conditioning

Question 16

how may the effects of hyperthermia be limited pre-competition (2)

Answer 16

• hydration (small amounts regularly)
• cooling aids (ice bath, cooling vests, freeze fans)

Question 17

what do cooling aids do to the body (3)

Answer 17

• reduce core body temperature
• increase blood plasma levels
• reduce dehydration

Question 18

how may the effects of hyperthermia be limited during competition (2)

Answer 18

• hydration during event
• wear correct clothing

Question 19

how may the effects of hyperthermia be limited post competition (3)

Answer 19

• rehydrate (fluids)
• refuel
• cooling aids (ice bath, freeze fan, freeze vest)

Question 20

how to prevent heat related illnesses (3)

Answer 20

• wear correct/cool clothing
• cooling aids
• drink water/hydrate

Question 21

heat exhaustion symptoms (7)

Answer 21

• tiredness
• weakness
• dizziness
• headache
• fainting
• muscle cramps
• nausea or vomiting

Question 22

what can heat exhaustion lead to

Answer 22

heat stroke

Question 23

heat stroke symptoms (8)

Answer 23

• extremely high temperature
• red, hot, dry skin
• rapid strong pulse
• headache
• dizziness
• nausea
• confusion
• unconsciousness

Question 24

how serious is head stroke

Answer 24

potentially life threatening