02b. Energy Systems - Anaerobic glycolysis Flashcards
What releases the energy for muscular contraction?
The high energy bond between the second and third phosphate in ATP breaking apart.
The high energy bond between the second and third phosphate in ATP breaking apart results in what?
Muscle contraction
What are carbohydrates stored as in the muscle?
glycogen
What are carbohydrates in the blood?
glucose
Where is glycogen found?
within muscle
Where is glucose found?
within the blood
What food fuel is contributing most significantly at sub max intensity?
Carbohydrates (CHO)
When do carbohydrates (CHO) contribute most significantly?
At sub max intensity
Which energy system has the second highest rate?
Anaerobic glycolysis system
What is the intensity of the anaerobic glycolysis system?
85-95%MHR
Which energy system is contributing most significantly at intensities 85- 95% MHR?
Anaerobic glycolysis system
What is the yield of the anaerobic glycolysis system?
low (2mmol)
Which energy system has the second lowest yield?
Anaerobic glycolysis system
What is pyruvic acid?
a by product of glycolysis
What is the by product of glycolysis?
pyruvic acid
What does the accumulation of lactate acid result in?
H+ions
What causes H+ions?
The accumulation of lactic acid
How do H+ions cause fatigue?
increased acidity therefore decreased ability to use glycogen inhibiting muscle contraction
What causes increased acidity therefore decreased ability to use glycogen inhibiting muscle contraction?
H+ions
What are the three metabolic by products?
ADP, Pi, H+ions
What is the duration the anaerobic glycolysis system contributes most significantly for
Until sufficient oxygen reaches muscles/H+ions inhibit contraction (approx 30 secs)
What type of recovery is recommended after an event that heavily relies on the anaerobic glycolysis system?
Active
Describe an active recovery
Doing the same activity for 5mins at a lower itensity
Explain how an active recovery increases recovery rate
because active recovery keeps blood flow to working muscles then increased oxygen to muscles so increased rate/faster/more rapid breakdown/removal of H+ions.
Which letter is most likely to represent the anaerobic glycolysis systems contribution in a 3km run?
A
Which letter is most likely to represent the anaerobic glycolysis systems contribution in 1min gymnastics beam routine?
C
Which letter is most likely to represent the anaerobic glycolysis systems contribution in the last 30second sprint of a marathon?
A
