target heart rate

htimpaired

I have a Fitbit on backorder, so until then I am stuck relying on the heart rate monitor on the cardio machines at the gym. yesterday on the stair climber it said my heart rate was up to 170 at one point, which I guess according to that formula is only a little below my max heart rate of 189 (220-age). Are those things accurate (the machines at the gym) or am I overworking my heart?

SparkleShine

I am wondering the same thing.Mine has gotten to 180...even onmy new polar HRM. I'm 40!