Chapter 4 Flashcards
Study of how energy is transferred into usable forms in the human body through different chemical reactions
Bioenergetics
Process of which nutrients are acquired, transported, used, and disposed of by the body.
Metabolism
What are the 3 substrates
Carbs, proteins, fats
What happens to Carbs once ingested
Broken down into Glucose and enters our cells. They are then stored as glycogen in the liver and muscle cells however, there is a limited ability to store carbs
Chemical form of fat found in the body
triglycerides
When is fat used for energy
prolonged periods of exercise (marathon), low intensity, and rest
What substrate does not provide energy during exercise
Protein
The only time protein would be used as energy would be
Starvation. Gluconeogenesis- protein converts to glucose
Name the two anaerobic energy systems
ATP-PC and Glycosis
When would you use the ATP-PC system
High intensity short duration exercise such as a sprint
How long does ATP-PC last
10-15 seconds
What is the first system used at onset of all exercises
ATP-PC
How long does Glycolysis last, when would we use it
30-50 second; most fitness workouts in the 08-12 reps(phase 2)
What is the Aerobic Energy system and its components
OXIDATIVE SYSTEM
Aerobic glycolysis
Krebs
ETC
When is the Oxidative system used?
Transitioning to sustained exercise, rest. Produced energy for indefinite periods of time. (marathon)
