What is the duration of the anaerobic alactic system?

Prepare for the CSEP Certified Personal Trainer Test. Utilize flashcards and multiple-choice questions, all with hints and comprehensive explanations. Get fully ready for your certification exam!

The anaerobic alactic system, also known as the ATP-PC system, primarily fuels short bursts of high-intensity activity. Its energy supply comes from adenosine triphosphate (ATP) and phosphocreatine (PC) available in the muscle cells. The duration of the anaerobic alactic system is typically very brief, providing energy for activities lasting about 0 to 15 seconds. This is because the stored ATP and phosphocreatine are rapidly depleted during such intense efforts.

In contrast, longer durations of activity would rely more on anaerobic glycolysis or aerobic metabolism, which can sustain energy production for extended periods. Therefore, the emphasis on a very short duration for the anaerobic alactic system confirms its role in supporting maximal efforts, such as sprints or heavy lifts, where the body needs an immediate and powerful energy source that doesn’t require oxygen.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy