A. V. Karvonen

A. V. Karvonen was a Finnish physiologist best known for developing the "Karvonen Method," a formula to determine target heart rate for exercise. This method helps individuals find a safe and effective exercise intensity by considering their resting heart rate and maximum heart rate. It’s widely used in fitness training to personalize workout intensity, ensuring it is challenging yet safe. His work contributed significantly to understanding how heart rate responds to exercise and how to optimize training for health and fitness.