What is/are the primary system(s) for a 400m run?
Understand the Problem
The question is asking about the main physiological energy systems utilized during a 400 meter run, which typically involves both anaerobic and aerobic processes. Specifically, it seeks to identify which systems are primarily engaged during this type of sprinting event.
Answer
Anaerobic glycolysis.
The primary energy system for a 400m run is anaerobic glycolysis.
Answer for screen readers
The primary energy system for a 400m run is anaerobic glycolysis.
More Information
Anaerobic glycolysis is the primary energy system used in a 400m race because the event is high intensity and the duration is relatively short, usually lasting less than one minute. It provides energy by breaking down glucose without oxygen, producing lactic acid as a byproduct.
Tips
A common mistake is to overlook the role of creatine phosphate which predominates at the very start of the sprint but quickly depletes.
Sources
- What are the predominant energy systems used by a 400m runner? - mytutor.co.uk
- The 400 metres - World Athletics - worldathletics.org
- Energy systems required for 400m sprint? | Bored Of Studies - boredofstudies.org
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