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Physical Education 3/4 > energy systems (SAC 3) > Flashcards

energy systems (SAC 3) Flashcards

1
Q

intensity & duration ATP-PC

A

INTENSITY
- very high intensity

DURATION
- very short duration (1-10 seconds)

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2
Q

intensity & duration anaerobic glycolysis

A

INTENSITY
- high intensity

DURATION
- short duration (10-60 seconds)

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3
Q

intensity & duration aerobic (glycolysis)

A

INTENSITY
- low (submaximal) intensity

DURATION
- long duration (60+ seconds)
e.g longer duration efforts

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4
Q

intensity & duration aerobic (lipolysis)

A

INTENSITY
- at rest

DURATION
- 60+ seconds

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5
Q

rate & yield

A

rate - how quickly ATP is resynthesised (influences the intensity of the activity)

yield - amount of ATP that is resynthesised during exercise (influences the duration of the activity)

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6
Q

ATP rate & yield ATP-PC

A

RATE
- explosive & instantaneous

YEILD
- extremely limited (very low)

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7
Q

ATP rate & yield anaerobic glycolysis

A

RATE
- fast

YIELD
- small amounts (low)

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8
Q

ATP rate & yield aerobic (glycolysis)

A

RATE
- medium

YIELD
- large amounts

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9
Q

ATP rate & yield (lipolysis)

A

RATE
- slow

YIELD
- very large amounts

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10
Q

fuel source ATP-PC

A
  • creatine phosphate
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11
Q

fuel source anaerobic glycolysis

A
  • glycogen
  • glucose
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12
Q

fuel source aerobic

A

GLYCOLYSIS
- glycogen & glucose

LIPOLYSIS
- triglycerides & free fatty acids

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13
Q

recovery ATP-PC

A

PASSIVE RECOVERY
(sitting down, not moving, covering legs with blanket)
- helps restore PC faster (98% PC replenishment in 3 minutes)

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14
Q

recovery anaerobic glycolysis

A

ACTIVE RECOVERY
(e. g walking, stretching, swimming)
- helps metabolise/oxidise metabolic by-products (hydrogen ions)
- helps remove lactic acid build up

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15
Q

recovery aerobic

A
  • active recovery
  • massage/hydro

HIGH GI FOODS
(e.g gatorade/lollies)
- consume within 30 mins post activity
(muscles during this time are vasodilated and receptive to high Gi foods due to glycogen depletion)

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16
Q

fatigue mechanisms ATP-PC

A
  • fuel depletion (creatine phosphate)
  • due to the depletion therefore we will get greater contribution from the anaerobic glycolysis system which produced energy at a slower rate
  • therefore this will lead to a decreased intensity
17
Q

fatigue mechanisms anaerobic glycolysis

A
  • accumulation of metabolic byproducts
  • this leads to increased muscle acidity, which decreases enzyme activity and the ability to produce/resynthesise ATP is decreased and therefore energy production is decreased ATP is decreased
  • therefore this will lead to a decreased intensity
18
Q

fatigue mechanisms aerobic (THERMOREGULATION)

A
  • increases blood flow to the skin to cool down, which therefore decrease the amount of blood to the active muscles, this increases the presence of hydrogen ions
  • therefore this will lead to a decreased intensity
19
Q

fatigue mechanisms aerobic
FUEL DEPLETION (GLYCOGEN)

A
  • when depleted we have to use fats for energy which are utilised at a slower rate
  • therefore this will lead to a decreased intensity

TO DECREASE FATIGUE
- consistent high GI ingestion in game, increases glycogen sparing, so glucose is utilised instead of glycogen (decreased fatigue)

20
Q

lactate inflection point (LIP)

A
  • lactate inflection point is when lactate production exceeds lactate removal/metabolism
  • above 80% max HR we are most likely working above LIP
  • exercise intensities beyond the LIP are associated with a more rapid onset of fatigue
  • hydrogen ions accumulate beyond LIP
21
Q

VO2 max and LIP

A
  • the maximum amount of oxygen that the body can uptake, distribute and utilise per minute
  • LIP is closely linked to VO2 max, the greater your VO2 max the higher your LIP
  • (elite aerobic athletes have higher LIP)
  • (higher LIP = able to work at an higher intensity for longer)
22
Q

ATP-PC & sporting examples

A
  • provides energy for resynthesis of ATP through the breakdown of creatine phosphate without O2

SPORTING EXAMPLES:
- jump, kick, hit
- 100m sprint
- weight-lifting
-discus

23
Q

anaerobic glycolysis & sporting examples

A
  • provides energy for resynthesis of ATP through the breakdown of glycogen through a series of chemical steps without O2

SPORTING EXAMPLES:
- repeat sprint efforts
- efforts/tackling
- 400m run

24
Q

aerobic system & sporting examples

A
  • provides energy for the resynthesis of ATP through the breakdown of various fuel (glycogen & triglycerides) through a series of chemical steps which require O2

SPORTING EXAMPLES:
- marathon running
- tour de france (bike riding)

25
Q

energy system interplay

A
  • all energy systems contribute to ATP resynthesis at all time
  • the level just increases or decreases based off the intensity/duration of the activity
  • system contributing the most = major contributor
26
Q

how to answer energy system interplay question

A
  1. state that all the energy system work together to resynthesise ATP
  2. link ATP-PC energy system to event, I.D, rate, yield and game example (e.g jumping)
  3. link anaerobic glycolysis energy system to event, I.D, rate, yield and game example (e.g repeat sprint efforts)
  4. link aerobic energy system to event, I.D, rate, yield and game example (longer duration = aerobic major contributor)
  5. In activity recovery - link aerobic energy system working during periods of rest playing a part in PC replenishment or H+ ion metabolism
  6. data reference or specific game reference (with numbers)
27
Q

oxygen deficit

A
  • anaerobic & ATP-PC
    (high intensities or before enough oxygen has reached the muscles
28
Q

ATP & PC difference

A

ATP = provides energy for muscular contraction
PC = is a fuel that is broken down in order to resynthesis ATP

29
Q

CP restoration during game breaks

A
  • breaks allow for CP restoration through the aerobic energy system
30
Q

EPOC duration

A
  • higher intensity & duration = longer EPOC
  • use active recovery with EPOC which will extend EPOC and allow oxidation of hydrogen ions and refuelling
  • also eating high GI foods during EPOC for glycogen resynthesis (within first 30 mins after)

Physical Education 3/4 (13 decks)

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