>General Running>Heart Rate Question
Interesting measurement errors here. I can't help commenting on this since Jeff asked in another thread about elevation considerations in Garmin distance calculations.
So your elevation started at 615ft and varied between a max of about 630ft to a min of about 520ft. I'm wondering if your location (x,y coordinates) varied by more or less than your elevation (your z coordinate). +/- 55ft error isn't bad for satellites 12,000 miles away.
BTW, If you're all wondering if I can get any geekier, the answer is yes.
When it’s all said and done, will you have said more than you’ve done?
I'm pretty sure you can manually set your zones with Garmin. If that affects the graphing part, I don't know, since I don't look at that part of it.
Anyway, using zones based on a field test and not a formula is more for determining training.
If you're talking about the second chart, my X, Y, and Z coordinates did not change from minute 2:00 onward, as I was laying on the couch.
Both you and I know you were in a single location but the Garmin measurements show you couch surfing up and down "hills" the whole time. This indicates errors in the measuring device. I was just wondering if the X and Y measurements were also fluctuating (almost certainly) and to the same degree as the Z measurement.
Although I am a fan of the Forerunner, it is notoriously bad at recording elevation changes. So much so that the Motion Based website has a built-in feature for automatically correcting the data.
... I have been wanting a heart rate monitor for a while. I actually bought one, but it didn't connect to your chest, you were just supposed to do a thumb/index read on the watch. It doesn't work very well. It works great as a stop watch, but not much more than that.
So, I was wondering a couple of things:
What is the best *cheap* heart rate monitor? ...
I tried different tests and formulas to fix my MAX HR and I always end up with training zones that don't make sense because it's always too low and then no matter how easy the run, my garmin says I'm at 80-90% of my MAX HR, which is not possible (I could never run 2 hours at that level!).
Then I found this site:
It uses what they call the WORKING HEART RATE (which is a combination of the resting heart rate and the MAX heart rate) to fix training zones. It might not work for everyone but for me it definitely makes a lot more sense now!
You can then manually set your Garmin zones with these new numbers.
There ya go.