ATP-PC system

Question 1

ATP-PC System

Answer 1

Oxygen requirement- anaerobic
Type of event- max intensity
%MHR- 95% MHR
Fuel source- PC
Rate- rapid 3.6 mol/min
Yield- limited (0.7 ATP for every PC)
By-products- Pi, creatine
Fatiguing factors- PC depletion
Recovery- Passive recovery

Question 2

Anaerobic glycolysis system

Answer 2

Oxygen requirement- anaerobic
Type of event- high intensity, repetitive actions
%MHR- 85%
Fuel source- Glycogen
Rate- fast (1.6 mol/min)
Yield- small (2-3 for every glucose molecule)
By-products- metabolic by-products lactate and hydrogen ions
Fatiguing factors- Hydrogen ion accumulation
Recovery- Active recoverey

Question 3

Aerobic energy system

Answer 3

Oxygen requirement- aerobic
Type of event- endurance
%MHR- 75%+
Fuel source- glycogen, triglycerides
Rate- slow (glycogen 1mol/min) (triglycerides<1 mol/min)
Yield- large (CHO 38 ATP per molecule, Fats 441 per molecule)
By-products- Carbon dioxide, heat, water
Fatiguing factors- Glycogen depletion, thermoregulatory fatigue
Recovery- Active, Nutritional strategies