For aerobic training, ISSA recommends that individuals train at what percentage of the maximum heart rate?

The recommendation for aerobic training at 55% to 85% of the maximum heart rate is based on the principle that this range is optimal for improving cardiovascular fitness and endurance. Training within this percentage helps to enhance the heart's efficiency, increase lung capacity, and improve overall stamina.

Aerobic exercise performed at this intensity promotes better oxygen utilization and supports the body's ability to sustain prolonged physical activity. This range strikes a balance between providing a sufficient challenge to enhance fitness levels while still being manageable for most individuals, allowing them to train for extended periods without excessive fatigue.

Training below this range may not provide enough stimulus for significant improvements in aerobic capacity, while training consistently above this range could lead to overtraining or increase the risk of injury, especially for beginners or individuals with lower fitness levels. Thus, the 55% to 85% range is widely regarded as the most effective for achieving significant aerobic adaptations.