I just got a Garmin Forerunner 220 with a Heart Rate Monitor and used it for the first time today. I did an ergo session and my maximum heart rate during the session was 190bpm, which Garmin Connect says was 103% of my "Max Heart Rate", which is slightly impossible.
I've looked online for formulas to try and work out a new "Max Heart Rate" to set my watch with, in order to get accurate readings, but the majority of formulas that are appararently the most accurate give me values lower than 190.
How can I work out my max heart rate? How do you do it?
I'm a 19 year old female.
Thanks