I'll give some info about myself first: I'm 32, 183cm (6'0") tall , and 71kg (156lbs). I've been a smoker for 17 years, and I couldn't quit yet (I hate myself for that ). I'm down to 6-7/day though .
Here's today's results (46 min test ride - steep climb):
Resting: 61bpm (now 67 while typing ?)
Average HR: 151
Max HR: 173
My question is about how to determine my max HR. I tried some formulas that I found online. According to those calculations, my Max HR is supposed to be 185. But today I hit 173 (and I kept there for a little while), which is about 93-94% of 185 . It shouldn't be right, right? What else can I do to find out my maximum heart rate (except going to a doctor)?
Also, how is my HR results, considering my age, and my bad habit?
Thanks in advance for any advice