Definition: In this zone of exercise intensity, the body uses stored fat for energy. At 60-70% of your maximum heart rate, 85% of your calories burned in this zone are fats, 5% are
proteins and 10% are carbohydrates. The walker should first warm up by walking for 10 minutes at an easier pace, this burns off the blood sugar and stored glycogen so that fat-burning can begin. Walk in this zone for 30 minutes to an hour before cooling down for 5-10 minutes at an easier pace.
If you walk at a higher heart rate, you burn less fat and may kick over into anaerobic metabolism where you build up lactic acid and burn protein instead of fat once you have run out of blood sugar.
Pronunciation: fat burn-ing zone
Also Known As: fat-burning zone, fitness zone
Alternate Spellings: fat-burning zone
Common Misspellings: None
Examples: Walk in the fat burning zone to lose weight.
