CH 8 (1-3) Flashcards
Bio-energetics:
ATP-PC (anaerobic metabolism) 0-30 seconds of work (power athletes, sprinters,
jumpers, Crossfitters, basketball, volleyball, body builders.)
Glycolytic
30 sec – 3 min (middle distance 400m-800m)
Oxidative
3-minutes (runners, cyclists, endurance athletes
2-most important factors for bio-energetics:
Duration & Intensity
Low intense =
fat (triglycerides; after 75+ min protein is deaminated)
High Intense =
= carbs (glucose)
TDEE:
Total Daily Energy Expenditure
TDEE Formula =
(RMR x AF + TEF + NEAT)
1.What is the name of the storage form of glucose?
Glycogen
- The formation of glucose from noncarbohydrate sources, such as amino acids is called:
Gluconeogenesis
- What is the proper order for oxidation of a free fatty acid?
Aerobic Glycolysis, Krebs Cycle, Electron Transport Train
- As activity increases, the usage of carbohydrate as an energy source becomes 50% and 50% fat, this metabolic marker is referred to as:
Ventilatory Threshold 1
- How many NON-ESSENTIAL Amino Acids are there?
11
- A 100m sprinter primarily uses ________________ as her energy source?
ATP-PC
Adenosine Triphosphate
A high-energy molecule that serves as the main form of energy in the human body; known as the energy currency of the body.
ATP-PC System
An energy system that provides energy very rapidly, for approximately 10–15 seconds, via anaerobic metabolism.
Generates energy very quickly for high-intensity, short-duration activities
Glycolysis
Generates energy moderately quickly
Oxidative System
Generates energy relatively slowly but for a long duration
Ketosis
A state of carbohydrate depletion where the liver manufactures ketone bodies to meet energy demands that free fatty acid oxidation cannot support. Occurs when your body burns fat for energy instead of glucose.
First Law of Thermodynamics
Energy cannot be created or destroyed but merely converted from one form to another.
Excess Post Oxygen Consumption
The state in which the body’s metabolism is elevated after exercise.
NEAT (Nonexercise activity thermogenesis/GREG)
Energy expenditure through daily activities outside of structured exercise, such as walking, completing household chores, and taking the stairs.
TEF (Thermic Effect of Food)
The energy required to digest, absorb, and process nutrients that are consumed.
Ventilatory Threshold 1
The point at which the body uses an equal mix of carbohydrate and fat as fuel sources.
As activity intensity increases, the usage of carbohydrate as an energy source becomes 50%, and the usage of fat becomes 50%.
Ventilatory Threshold 2
The point where glucose provides nearly all of the energy for the activity.
The point where activity is so intense that glucose is providing virtually all of the energy for the activity, as fats metabolize too slowly to keep up with maximal demands.
