acute responses and energy systems

Question 1

what does the respiratory system refer to

Answer 1

the respiratory airways

Question 2

cardiovascular system meanings

Answer 2

cardio is the heart and vascular is the blood/ blood vessels

Question 3

muscular systems

Answer 3

focus on muscle fibres and energy/ mitochondria

Question 4

acute respiratory responses

Answer 4

increase V,TV,RR, Pulmonary diffusion and O2 uptake

Question 5

relationship between ventilation , RR and TV

Answer 5

RR is a linear increase in response to exercise intensity increasing because of O2 demand increasing.TV increases but will plateau at sub max because reaches sub max . The HR will continue to increase and contribute to increase ventillation

Question 6

arteries

Answer 6

carry the blood away from heart - oxygenated

Question 7

veins

Answer 7

carry the blood back to the heart - deoxygenated

Question 8

venous return

Answer 8

returning blood back to the heart , need assistance through one way valves etc.

venous pooling - when blood pools in the veins in the legs after exercisr and will not return to the heart - decrease in O2 to the uscles and decrease intensity

Question 9

cardiovascular responses

Answer 9

increase SV,HR,Q ,Systolic BP, redistribution of blood and decrease blood plasma

Question 10

systolic and diastolic BP

Answer 10

systolic - contraction and when blood empty in the heart
diastolic- when heart relaxes and fills - not change ( lower value)

Question 11

acute muscular responses

Answer 11

increase motor unit recruitment , firing rate, A-VO2- difference, accumulation of met by products, depletion of fuels , increase heat

Question 12

hypothermia

Question 13

hyperthermia

Question 14

A-Vo2 - difference

Question 15

motor unit

Answer 15

made up of motor neurons and muscle fibres it stimulates

Question 16

EPOC - what and why

Answer 16

o2 supply exceeds demand - thermoregulation, removal of by products and replenish CP

Question 17

factors affecting O2 deficit and EPOC

Answer 17

higher intensity, heat, aerobic capacity/ fitness, dehydration

Question 18

energy - production of ATP

Question 19

impacts on fuel that is used

Answer 19

fuel availability, O2 availability, intensity, recovery and rate of ATP resynthesis

Question 20

fuels at submax and rest

Answer 20

carbs - 33% rest 66% submax
vice versa for fats/lipids

Question 21

5 features of each - CP,AG, aerobic

Question 22

differences between aerobic and anaerobic

Answer 22

anaerobic -
no need for O2, fast rate, finite capacity, AG form lactic acid
aerobic-
need O2, large yield of ATP , not provide energy quick enough for high intensities

Question 23

LIP

Answer 23

the last point of balance between lactate accumulation and removal
74% VO2 and 85% MHR
ABILITY TO WORK AT HIGH INTENSITY AERBOICALLY

Question 24

crossing LIP

Question 25

physiological changes of crossing LIP

Answer 25

increase V,TV,HR,blood lactate increase sharply to combat increase accumulation of met by products

Question 26

active vs passive recovery

Question 27

fatigue - accumulation of h plus ions

Question 28

advantage of high LIP

Answer 28

because LIP is last point of balance bw lactate accumulation and removal . aerobic system is most sig. it is imperative to have a high LIP , allow to work higher intensities aerboically for longer and making sure AG system has minimal contributions for later –> putting of the accumulation of fatiguing metabolicc by products - improve performance and average speed