The body converts protein into energy
Exercise & energy metabolism
The body is equipped with a complex system of energy supply in order to be able to provide the necessary performance in different situations. Above all, a special energy source, adenosine triphosphate (ATP), is a prerequisite for any physical activity. ATP is the universally available energy carrier in every body cell.
The cells themselves contain only small amounts of ATP, which are used up after just a few seconds. Therefore, this ATP has to be constantly restored (= resynthesized), which takes place via the energy-supplying nutrients carbohydrates and fat.
Energy metabolism with oxygen - the normal case
The energy production in the body - i.e. the ATP production - takes place primarily through the burning of fatty acids and glucose. At rest and during moderately intense exertion, the energy requirement is met primarily from the burning of fatty acids and carbohydrates, which is known as aerobic metabolism.
Activities that involve primarily aerobic metabolism include most everyday activities such as sitting, walking, standing, light housework, or office work. Longer sporting activities also mainly involve aerobic metabolism.
Depending on the intensity of the aerobic activity and the level of training, the proportion of carbohydrate and fat stores in the energy supply fluctuates.
Energy metabolism without oxygen - the exception
In the case of high exercise intensity, the body has to inject energy without oxygen (anaerobically) in addition to the aerobic metabolism. This is the case when more energy is required than can be provided by aerobic combustion of the nutrients.
The anaerobic energy supply can only bridge such situations for a very short time (about three minutes) because the muscles then tire very quickly.
Typical situations are, for example, lifting or throwing heavy objects, short, fast runs (sprints), etc.
Further information under Energy requirements at rest and during activity.
- Which country leader was not born there?
- Does Steorn's free energy technology work
- What are some easy garlic recipes
- Can a beginner become a data scientist
- Who lived in medieval castles in Great Britain
- Will global warming stop cryonics?
- Should I put sunscreen on my ears
- Which reactions occur with a carbene intermediate?
- How can eczema be cured
- North Korea receives support from ISIS
- How do dynamic and condenser microphones differ
- What happened in Tibet during World War II
- What do you think of BYOD
- Who was Harold Arlen
- Micellar water is a toner
- What's your favorite Shane Dawson series
- Is there a possibility for human extinction?
- How does the use of antidepressants cause side effects
- How did love get to you
- How do I make my cold worse
- How to say blood in Dutch
- Does Deja Vu have a scientific explanation
- Why doesn't iron burn?
- What are animals and their uses