I wore my heart rate monitor today for the very first time . I have the Garmin 35 and use my strap with it . It's saying average rate was 163 and max 188 is this too high ? I ran for 31 mins average pace 11.43 min mile . I wasn't gasping for breath and my breathing had a steady rhythm and I could speak . Oh and I'm 59 . I'm going to have to get my head around understanding all this stuff but just thought I'd ask on here .