Anatomy and Physiology - Energy Systems Flashcards
Adenosine triphosphate (ATP)
The key source of energy in the body.
ATP resynthesis
The production of ATP through the use of energy, ADP and P.
Blood lactate
A substance that pyruvate is converted into in the absence of oxygen.
By-product
An extra substance that is created as a result of another reaction or process.
Duration
The time spent exercising.
Energy-continuum
How and when each of the three energy systems becomes predominant when producing the energy needed for exercise.
Enzyme
A catalyst that causes a biochemical reaction (breakdown of substances).
EPOC
The increased level of oxygen consumption following exercise.
Fast component of EPOC
Involves the replenishment of the blood supply and muscle oxygen stores, and resynthesis of ATP.
Glucose
A simple form of sugar easily broken down for energy in the body.
Glycogen
Chains of glucose that the body uses as energy (but takes longer to break down).
Indirect calorimetry
A method of measurement to determine the volume of oxygen consumed, and carbon dioxide produced, to provide a value for energy expenditure.
Intensity
How hard a body is working.
OBLA
An increase in blood lactate above 4 mmol/l
VO2 max
The maximum amount of oxygen an individual can utilise in the body per minute.
