What is the aerobic exercise intensity range for heart rate percentage?

The aerobic exercise intensity range for heart rate percentage typically falls within 55%-70%. This range is considered ideal for improving cardiovascular fitness and endurance. At this intensity, the body efficiently uses oxygen to produce energy, allowing for sustained activity over longer durations. Exercising within this range also promotes fat oxidation, which is beneficial for weight management and overall metabolic health.

When exercising at an intensity below this range, such as 45%-55% or 50%-60%, the effort may be too light to significantly challenge the cardiovascular system or contribute to substantial improvements in fitness levels. On the other hand, exercising at an intensity above 70% might lead into anaerobic zones, where the body starts relying more on stored energy sources and less on oxygen, which is not as efficient for building aerobic capacity. Therefore, the 55%-70% heart rate range is the most effective for developing and maintaining aerobic fitness.