Researchers have said that the formula for peak exercise heart rate that doctors have used for decades to diagnose heart conditions may be flawed as it does not account for differences between men and women.
The simple formula of “220 minus age” has been widely used to calculate the maximum number of heart beats per minute a person can achieve.
Many people use it to derive their target heart rate during a workout. Doctors use it to determine how hard a patient should exercise during a common diagnostic test known as the exercise stress test.
After analyzing more than 25,000 stress tests, the researchers found significant differences between men and women and developed an updated formula to reflect those nuances.