Just finished a good workout this AM. My max heart rate went to 153 BPM while the average over 45 minutes was 142. This is a little more than usual for me. I was wondering how high your heart rate goes and for how long? I am 63 years old.
I'm 54 and my HR during exercise varies depending on the workout and its goal. In general, the average never goes below mid-150's, and I frequently hit 170-175, with a few swipes at 180 on really tough days.
I don't worry about how high my HR goes during a workout because I figure I'll pass out before I die. My body sends all kinds of "please stop" signals when I hit the 170's, and it takes a lot of discipline to keep that pace for very long.
I use the HRM to keep track of how many calories I burn so I can compare one workout to another. I also use it to measure how quickly I can recover from a maxed out HR. My goal is to hit the 170+ range and bring it back down by 30 BPM within 1 minute. Currently I can lower it by 20 BPM easily, and sometimes more.
More importantly, and slightly more difficult to quantify, is how much work I can do inside of a given HR range. After a year of intense training, that has continually progressed in difficulty, I find that I have to work 2-3 times harder now than I did last year just to break a sweat and get my HR in the 150+ range. Most of the people I train with are fantastic athletes 25-30 years younger than me, and we usually burn roughly the same amount of calories in a session, but their average HR and max HR is always lower.
I'm no expert on this stuff, but I've learned a lot in the last year. How I use a HRM and what I do with the info has drastically changed in that time. Now it's all about pushing my body to make it respond with improved capacity, and the HRM helps me measure that.