How Zone 2 Heart Rates Turn Fat Into Fuel During Exercise

Sports cardiologist Dr. Tamanna Singh, MD, has explained how fat-burning heart rates work. These rates typically fall between 60% and 70% of a person’s maximum heart rate. They are often referred to as zone 2 heart rates, where the body burns a higher percentage of fat during exercise. The fat-burning heart rate is best identified through a cardiopulmonary exercise test in a lab. However, the American Heart Association suggests using the Fox formula for a simpler approach. This involves calculating 60% to 70% of your maximum heart rate to find your target zone.

Zone 2 exercises are moderate in intensity. Activities like walking, jogging, cycling, or rowing fit into this category. To track your heart rate during these workouts, you can use your fingers, a wrist monitor, or a chest strap monitor.

While exercising in this zone can aid weight loss, experts recommend combining it with strength training for a balanced fitness routine. To increase workout volume, you can exercise more frequently, extend sessions, cover greater distances, or raise the intensity. Exercising at this heart rate helps the body use fat more efficiently as fuel. It remains one part of a broader fitness strategy. The method of calculation and monitoring ensures individuals can tailor their workouts effectively.