what the 3 energy systems are Flashcards
what is the phosphate energy system (ATP-PC) DURATION
5-15 seconds depending on intensity
the intensity of ATP-PC
maximal effort
The phosphate energy system provides ATP production when
ATP stores already in the muscles are used up
The phosphate (ATP-PC) energy system provides the bulk of ATP production during what efforts
powerful or explosive efforts
examples of ATP-PC
sprinting short distances, High jump, Long Jump
how ATP-PC (phosphate energy system) works
uses a stored molecule in the muscle called creatine phosphate (CP) to resynthesise ATP amount of ADP used from ATP grows.
Chemical bond between phosphate and creatine is broken, releasing energy that is used to reconstitute ATP from ADP
repairing of creatine occurs
occurs when activity end
when does the anaerobic glycolysis system contributes majority of energy
when phosphocreatine stores are depleted and the phosphate system no longer can provide the bulk of energy production.
what intensity is the anaerobic glycolysis
high intensity - maximal activities
duration of anaerobic glycolysis
10-60 seconds
examples of the anaerobic glycolysis
400m sprint, repeated sprints in team games
what do anaerobic glycolysis use carbohydrates as
as its fule
what are the by products of anaerobic glycolysis
lactate and hydrogen ions
in the anaerobic glycolysis CHo is broken down in the digestive system to produce what
glucose
anaerobic glycolyisis is also known as
lactic acid
anaerobic glycolysis travels through the blood streams and stored in muscles and liver as
glycogen
excess CHO is stored as
adipose tissue (fat)
glycogen broken down chemically to
pyruvic acid
during breakdown of aneraobic glycolysis system releases energy which is used to resynthesise …… where pyruvic acid is converted into …
ATP in the absence of oxygen…lactic acid
what happens to the pyruvic acid when there’s an absence of oxygen
it gets converted into lactic acid
what do Lactate and hydrogen ion do
they build up the working muscles over time inhabits sporting performance
how does lactate and hydrogen ions create fatigue
causes inhibition of the muscle contractions of working muscles.
what to do when lactate and hydrogen ions create fatigue
the athlete has to stop the activity
-this allows oxygen to break down the lactate and hydrogen ions to continue muscular effort.
what system is the major contributor to produce energy when lactate and hydrogen ions accumulation
The aerobic system
the aerobic system duration
60-120 seconds onwards
intensity of the aerobic system
sub-maximal continuous
aerobic system examples
1500m run & swim, cross country, triathlon
what can aerobic system create
38 molecules of ATP from 1 glucose molecule
how many molecules can glycolysis create
only 2
krebs cycle is
when the pyruvic acid is further broken down in citric acid cycle
what are the 3 stages of the aerobic energy production
Aerobic glycolysis, Kreb Cycle (citric acid cycle), Electron transport system.
what happen aerobic glycolysis
in the aerobic glycolysis what haven to the lactic acid
it does not accumulate
what happens in the Kreb Cycle (citric acid cycle)
Pyruvic acid is broken down to carbon dioxide, with further energy release.
what happens in the electron transport system
heat, water and substantial amounts of ATP are formed
how long it takes to repair creatines full restoration
in 2-3 minutes
30 seconds rest for creatine repair is
80%-90% restoration
ATP-PC (adenosine triphosphate-phosphocreatine) is a system used
by muscles to produce energy during short, intense bursts of activity.
what is the aerobic system
When the body needs to reduce effort or stop an activity due to the buildup of lactate and hydrogen ions,
-it becomes main source of energy production.
what is Anaerobic glycolysis system
When the Phosphocreatine stores are empty and the Phosphate System can no longer provide most of the energy, the Anaerobic Glycolysis system becomes the primary source of energy production
