6. Energy Systems And Interplay Key Terms Flashcards
(35 cards)
What is the anaerobic glycolysis energy system?
provides energy for the resynthesis of ATP through the breakdown of glycogen through a series of chemical steps that do not require oxygen
What is an active recovery?
low-intensity (50–60 per cent of MHR) activity completed at the end of an exercise bout that allows the body to recover by maintaining an elevated blood flow to the muscles and preventing venous pooling
What is adenosine diphosphate?
a by-product that results when ATP breaks down and loses one of its phosphate groups, which are located at the end of the molecule
What is adenosine triphosphate?
a high-energy molecule stored in muscle cells and other parts of the body. It is the energy currency for biological work.
What is the aerobic energy system?
provides energy from the breakdown of carbohydrates and/or fats in the presence of oxygen
What is aerobic metabolism?
when ATP resynthesis occurs via energy pathways that require the presence of oxygen
What is the aerobic system?
provides energy for the resynthesis of ATP through the breakdown of various energy fuels (mainly glycogen and triglycerides) through a series of chemical steps that require oxygen
What are amino acids?
the building blocks of protein. Protein is broken down through the process of digestion into amino acids.
What is anaerobic metabolism?
when ATP resynthesis occurs via energy pathways that do not require the presence of oxygen
What is ATP demand?
refers to how much ATP is required during an activity and the rate at which it is expended and, therefore, needs to be resynthesised
What is the ATP-CP energy system?
provides energy for the resynthesis of ATP through the breakdown of creatine phosphate (CP) without oxygen being involved
What are carbohydrates?
naturally occurring compounds that consist of carbon, hydrogen and oxygen
What is creatine?
an organic substance that occurs naturally in humans and helps to supply energy to muscle
What is creatine phosphate?
a chemical compound found in muscle cells that is capable of storing and releasing energy that can be used to resynthesise ATP from ADP and Pi
What is excess post-exercise oxygen consumption (EPOC)?
the amount of oxygen consumed during the recovery period after the cessation of an exercise bout that is over and above the amount usually required during rest
What is fatigue?
an exercise-induced reduction in the ability of muscle to produce force or power
What are fats?
an essential component of a balanced diet; should comprise about 20–25 per cent of daily food intake
What are free fatty acids?
a broken-down, transportable form of fats
What is glucose?
the simplest form of carbohydrate and the basic ingredient for anaerobic and aerobic glycolysis
What is glycogen?
the storage form of glucose; a chemical fuel found in the muscles and in larger quantities in the liver
What is interplay of energy systems?
the energy systems simultaneously working together, but at different rates, to supply the ATP required for an activity
What is the lactate inflection point (LIP)?
the highest intensity point at which there is a balance between lactate production and removal from the blood. It represents a person’s highest steady state intensity.
What is a metabolic by-product?
a substance produced as a result of chemical reactions within the body associated with the production of energy for ATP resynthesis
