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What is the anaerobic threshold zone in cardiovascular training?

The anaerobic threshold zone in cardiovascular training uses a moderate to high heart rate, which helps raise your anaerobic threshold (AT), the point at which your energy sources move from utilizing a higher percentage of fat to utilizing a higher percentage of carbohydrates. This zone is important because it increases your aerobic base, making your heart more efficient and helps you burn more calories during and after exercise. This zone is what we call the window of opportunity. It is in this zone that you are able to burn a large amount of fat and calories (i.e., you are working hard, but still able to breathe in enough oxygen to keep burning fat).

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.