Aerobic metabolism is a physiological process that requires oxygen to be available in order to use carbohydrate, fat, or protein for energy production. When oxygen is not available, only carbohydrate can be used for energy, this is anaerobic metabolism.
You use primarily aerobic metabolism for energy when you are working at a low to moderate pace during exercise. Walking briskly, cycling at approximately 12 mph, or a light to moderate jog would be good examples. Vigorous exercise or strength training actually relies mainly on anaerobic metabolism for energy production.
Anaerobic metabolism, on the other hand, occurs during short bursts of high intensity exercise, when the oxygen demands of muscle tissue exceed the capacity of the circulation to supply, creating oxygen debt. If the oxygen debt becomes too high, the muscle is no longer able to function. The only way to recover the muscle is to provide it with oxygen-rich blood in order to oxygenate the excess lactic acid. This is usually achieved during a recovery period in a workout.
Many people confuse the concepts of blood lactate and lactic acid. Lactate is produced as a byproduct of the energy system but is completely harmless; in fact, it is actually used as fuel by the heart and muscles. Even at rest, the body produces lactate, though quantities increase with exercise. Lactic acid, however, is a byproduct of lactate buildup and causes acidosis to increase in the system.
Differences
Aerobic - requires oxygen, releases carbon dioxide and water, produces much more energy for the same amount of glucose.
Anaerobic - doesn't require oxygen, releases lactic acid, much less efficient at producing energy, causes cramps.
The best for health: combine both exercises
Aerobic activities Anaerobic activities
Walking at a good pace Lifting weights
Dance Abdominals
Cycling Short races at high speed
Running at a moderate pace Artistic Gymnastics
- 
- 
- 
Can both metabolisms be used simultaneously?When can this happen?give an example
ReplyDeleteWhat is the energy unit used by the cell?Where does this energy unit come from?
What waste substances generate both metabolism?Is any of these substances harmful to the body?Why?
1- yes, our body can uses both metabolisms if we need too much energy and only with aerobic metabolism we do not give coarse.
ReplyDeleteAn example is if you are used to play basketball by yourself and you try to play a NBA match.
2- The cell uses metabolisms by getting energy from both metabolisms. This energy comes from the glycogen, a substance generate by the glycolisis.
3- the most common waste substance is lactid acid (C3H6O3) this substance can create an issue that is call metabolic acidosis, it cause an excess of lactid acid in our blood