Max heart rate lower than average
I am 23 years old, and have been running for about 2 years. Ive completed 2 marathons and a couple of shorter races and would consider myself fit and with a healthy lifestyle.
Now I don't know if it matter but for the record, I am 6ft1 tall and weigh 79 kg.
I've recently bought myself the forerunner 610 as a post marathon treat, and what a treat! this thing is amazing. So anyway, I've been playing with it and its features and I just found out that my maximum heart rate is 189. I ran as fast as I could on a track for a mile, did intervals etc but could not get it any higher than 189bpm. In theory my MHR should be 197. Does that mean that I'm unfit? I'm just trying to understand here :)
Thank you :)