Energy Systems and recovery Flashcards
Where does the kerb cycle occur
Matrix
Where does glycolysis occour
Sarcoplasm
Where does the electron transport chain occour
cristae
Process of: glycolysis
- plentiful oxygen
- glycogen converted to glucose-6-phosphate (2ATP)
- broken down: pyruvate by enzyme PFK
- converted to acetyle-Co-enzymeA by enzyme pyruvate dehydrogenase
Process of: kreb cycle
Acetlyl-co-enzymeA
- oxidation of citric acid: removes H+ atoms that enters ETC
- production of CO2 (carried to lungs:exhaled)
- leaving only carbon and oxygen
- sufficient energy released to resynthesis 2 ATP
Process of: electron transport chain (ETC)
Hydrogen gem kerb cycle come here
2 things happen here:
- water formed from sweat
- resynthesis of ATP where majority of energy is released. (34 moles)
What is OBLA
The point where lactic acid starts to accumulate on the muscles
What does OBLA tell us
More intense the exercise the greater the OBLA
Occours at diff intensities
endurance capacity
What are the 3 energy systems
- aerobic system
- lactic acid system (lactate anaerobic)
- ATP-PC system
Advantages of the aerobic system
Significantly more ATP can be resynthesised (36)
Body has enough muscle glycogen and triglycerides stores - to work for longer
Oxidisation of fatty acids and glycogen does not produce any fatiguing by products
Stages and functions of the kreb cycle: 3 marks
Pyruvic acid combines with acetyl CoA
Fatty acids combine with acetyl CoA
Beta oxidation occurs
Forms oxaloacetic acid
Forms citric acid Oxidation of citric acid Production and removal of co2 Hydrogen ions passed to ETC resynthesis of 2 ATP
what is beta oxidation and what is the process
Using fats as an energy source = aerobic system
- Broken down into glycerol and FFAs
- FFA undergoes beta oxidation = in mitochondria to maker acetlye-co-enzymeA entering the kreb cycle.
- fat continues that same path
more atp can be generated with one mole of ffa that one mole of glycogen
what is recovery
the return of the body to its pre-exercise state
what is EPOC
the volume of oxygen consumed during recovery above that which would be consumed at rest during the same time.
what occurs in stage 1
fast replenishment = 30 sec
- restoration of atp and pc levels
- re saturation of myoglobin with oxygen
2-3 liters of o2
