Answer :
D) Zone 3 is recognized as the cardio training zone where exercising becomes challenging to hard, making continuous talking difficult.
This zone typically corresponds to exercising at 70% to 85% of your maximum heart rate. Engaging in this intensity range is beneficial for cardiovascular health as it improves your aerobic capacity and enhances your overall fitness level.
Target heart rate zones represent different intensity levels of exercise. For example, the fat-burning zone is a low-intensity activity keeping your heart rate between 60% and 69% of your maximum heart rate.
The cardio zone is a higher intensity level, maintaining the heart rate between 70% and 85% of the maximum.
The Talk Test is a common method to measure exercise intensity; if you find talking continually challenging, you are likely within the cardio zone, specifically Zone 3. At this intensity level, your body burns more calories overall, contributing to improved cardiovascular health and fitness.
