Heart rate is how many times a person's heart beats in a minute. Maximum heart rate is an estimate of the fastest the heart can beat at that person's maximum activity level, and that rate changes as a person ages.
To find the maximum heart rate, subtract the person's age from 220. For example, if a woman is 40 years old, her maximum heart rate is 220 minus 40, or 180 beats per minute.
| Author | Shannon Erstad, MBA/MPH |
| Editor | Kathleen M. Ariss, MS |
| Editor | Kathe Gallagher, MSW |
| Associate Editor | Tracy Landauer |
| Associate Editor | Pat Truman |
| Primary Medical Reviewer | Martin Gabica, MD - Family Medicine |
| Specialist Medical Reviewer | Heather Chambliss, PhD - Exercise Science/Weight Management |
| Last Updated | September 1, 2006 |
WebMD Medical Reference from Healthwise