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-   -   Determining Maximum HR by feeling light headed? (http://www.bikeforums.net/general-cycling-discussion/730524-determining-maximum-hr-feeling-light-headed.html)

FasterNearGirls 04-26-11 06:16 AM

Determining Maximum HR by feeling light headed?
 
Yesterday I rode so hard that my MHR was at 102% since I had set it to 187bpm but was at 191bpm... I guess I have a new maximum? Or maybe even more than that? I felt light headed big time.

Good news is I thought I was riding with the B group but after we finished I found out I was with the B+ . That made the suffering almost worth while.

Here's the data -

http://connect.garmin.com/activity/81625607

Camilo 04-27-11 06:55 PM

A max is a max. You don't get a new max. How did you determine that 187 was your max? Did you use the "formula"? Because they are worthless.

There are a lot of guides out there how to determine your own max. It is very, very difficult to achieve a true max on your heart beat, plus it will be different for running vs. cycling vs. swimming vs. skiing, etc.

I've always used my lactate threshold as a benchmark instead of max. HR, and then design workouts around that instead. I've never done a LT blood study, but have used the average I get during a full effort race for 45-60 minutes.

I also know what my "marathon race pace" is - My average for 3-5 hour marathon type ski events is very consistent and I can use that as a benchmark for whatever workout I'm trying to do.

If you haven't already, you might consider reading a couple of books on HR training - they're very interesting. There are some variations in methodology, but you'll get a good idea.

FasterNearGirls 04-28-11 09:37 AM

Quote:

Originally Posted by Camilo (Post 12565452)
A max is a max. You don't get a new max. How did you determine that 187 was your max? Did you use the "formula"? Because they are worthless.

There are a lot of guides out there how to determine your own max. It is very, very difficult to achieve a true max on your heart beat, plus it will be different for running vs. cycling vs. swimming vs. skiing, etc.

I've always used my lactate threshold as a benchmark instead of max. HR, and then design workouts around that instead. I've never done a LT blood study, but have used the average I get during a full effort race for 45-60 minutes.

I also know what my "marathon race pace" is - My average for 3-5 hour marathon type ski events is very consistent and I can use that as a benchmark for whatever workout I'm trying to do.

If you haven't already, you might consider reading a couple of books on HR training - they're very interesting. There are some variations in methodology, but you'll get a good idea.

Thanks for the tips.
I didn't mean that my true max changed. New max because I had estimated 187 based on hard effort that had taken me to 185 previously. But since on Monday I had an extra hard effort @ 191bpm while feeling light headed, i figured it's a "new" max! I was wrong in my estimate before.

Camilo 04-28-11 12:17 PM

That's probably exactly right. I had a coach once who told me to use an effort like that as an estimated 90 or95% of true max. From what I know about "zone" training, a few beats in error in estimating zones won't be a big deal. I'd bet that 190-195 as your estimate of true max would be plenty accurate, more accurate than most people (who use the age related formula). That's what I'd do anyway.


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