How is target heart rate (THR) defined?

Target heart rate (THR) is defined as a heart rate that falls within the range of 55% to 85% of an individual's maximum heart rate. This range is important because it helps guide individuals in achieving optimal intensity during cardiovascular exercise, facilitating improvements in fitness, enhancing cardiovascular health, and promoting weight loss.

The upper threshold of 85% ensures that the exercise is intense enough to elicit physiological benefits and adaptations, while the lower threshold of 55% allows for safe and effective workouts, especially for those who may be new to exercise or those who are gradually increasing their activity level. Training within this range can lead to improved heart efficiency, endurance, and overall fitness levels.

This definition of THR is commonly used in exercise science and fitness training programs to help individuals set safe and effective training intensities. It provides a benchmark that individuals can monitor during workouts, ensuring they stay within an effective range for achieving their fitness goals.