A new study has devised this more precise formula for calculating the Max Heart Rate (MHR) for women, especially those over 35.
206 – (.88 x your age)
If I apply this to me (I’m 50) that looks like this:
206 – (.88 x 50) or 206-44 = 162 beats per minute (BPM) MHR
For optimal fitness, work at 65 – 85 percent of your MHR (in my case 105 to 138 BPM). However, always listen to your body. Your rate of perceived exertion will tell you if you are working too hard (or not hard enough).