A study published in the New England Journal of Medicine of nearly 2500 adults over a 6-year time frame observed that “the median value for heart rate recovery was 17 beats per minute, with a range from the 25th to the 75th percentile of 12 to 23 beats per minute.” However, the average age of the participants was also 57 years old, and HRR has been found to decrease around age 60.