We are pleased to announce that on March 4, 2025, an updated Rich Text Editor will be introduced in the MyFitnessPal Community. To learn more about the upcoming changes, please click here. We look forward to sharing this new feature with you!

Polar TF4F

Hi I have just bought a polar TF4F heart monitor but I don't know how to use it
What setting should I put the heart rate at
I'm a women of 48 I'm 5ft 2in I weigh 12st 2lbs or 172 lbs