Which heart rate zone indicates an athlete is undergoing moderate intensity?

The green zone represents moderate intensity within the heart rate training system used by Orangetheory Fitness. This zone is characterized by a heart rate range that allows for sustained effort where participants can maintain conversation while still benefiting from the training. It's an area that promotes cardiovascular endurance and fat usage, making it ideal for longer durations of exercise.

At this intensity, the body effectively uses oxygen and is in a state where the heart is worked sufficiently, but not so hard that it leads to exhaustion. Exercising in the green zone helps improve overall aerobic fitness, which is crucial for athletes looking to enhance their performance in various sports or physical activities.

In contrast, the other heart rate zones represent different intensities: the blue zone indicates a lower intensity where recovery or warm-up occurs, the orange zone signifies a higher intensity that approaches the upper limits of stamina and strength, and the red zone indicates maximum effort where exhaustion sets in quickly. Each zone has its specific purpose, but the green zone is where moderate intensity shines.