Energy systems Flashcards
(11 cards)
What is the first law of thermodynamics?
The body doesn’t produce, consume, or use up energy. Instead, it transforms it from one form into another as physiological systems undergo continual change.
What is homeostasis?
The ability of the body to maintain stable conditions.
How does homeostasis relate to exercise?
Exercise breaks things down and releases energy. Recovery builds things back up and recovers energy. The faster you can achieve homeostasis, the sooner you can train again, thus improving.
How does homeostasis impact performance?
The faster you achieve homeostasis after training, the sooner you can train again and therefore improve.
What is the ATP-PCr energy system?
Active at the start of exercise, no matter the intensity. Produces ATP quickly lasting for 0-6 secs (e.g. sprinting in rugby).
What is the glycolytic energy system?
Breaks down glucose to make ATP. Releases ATP fairly quickly, lasting 6 secs- 3 mins (e.g. more intense period of play in rugby).
What is the oxidative energy system?
Requires Oxygen to provide ATP. Lasts for hours (e.g. whole duration of a rugby game).
What does the moderate intensity exercise spectrum mostly use for energy?
Fats.
What does the heavy intensity exercise spectrum mostly use for energy?
Carbohydrates.
What does the severe intensity exercise spectrum mostly use for energy?
ATP-PCr.
What does the extreme intensity exercise spectrum mostly use for energy?
ATP-PCr.
