Thank you, Jakedev and Scott! That makes sense to me. I’ll bump it up a bit, making sure to keep under 5%.
BrittanyB
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BrittanyB on October 10, 2021 at 8:55 am · in reply to: Pa:HR as a “check” on regular training runs? #57878
Awesome, thanks! That was one of the hills I was looking at, I’ll check it out.
Hi Lindsay, good call, I could probably do more comparison and trial/error there. It was such a stark performance change – for two months it worked perfectly and then with no change to clothes/weather/environment it started doing these drops.
Hi Jon and Al!
Agreed, I think it’s the strap. It’s linked with a Bluetooth connection, is strapped on tightly and sits under my sports bra so definitely held tightly in place. I went down an internet rabbit hole yesterday of folks with similar problems with their straps. Since I only purchased in May and it’s still under warranty, I’m going to send back to Polar to see what they can do.
I also reached out to the HRV logger team on their contact form and asked if they had any recommendations for reducing artifacts – figure that might be useful for others as well:
“We definitely see more artifacts with runners compared to cyclists and often this is because of the motion and vibration of running. There are a few steps you can try to reduce the artifacts. The first is to make sure that your Polar H9 strap is tight enough so there is no movement when you run.
Next we recommend trying to reduce the amount of interference from any other connections during your run. To do this you can put your phone in airplane mode and only turn on the Bluetooth connection. You can also make sure that other apps are closed in the background and that your phone battery is fully charged.
A final note is that depending on the intensity of your runs you may see more artifacts. At very low intensity the workout mode will identify many artifacts that are just a result of natural variation rather than relating to signal quality. If your DFA1a is much higher than 0.75 and you’re seeing many artifacts, this may be the case.”Even with my wacky first readings, similar to what Al mentioned, I imagine this will be helpful in seeing concretely how Aet varies day to day and particularly that it is sometimes lower than I acknowledge. We’ve all read the articles and intellectually know that it varies, but when I saw that 0.77 was corresponding with 146, it made me realize that without that, I would have probably spent quite a bit of my run above 146 (but below 150 or 153) which wouldn’t have been particularly beneficial especially since I’m working in hopes of fixing some ADS.
Hi all! I decided to give this a try. I downloaded the app yesterday and used it on my run this morning with my Polar H9 cheststrap. Should mention that my strap has been giving me some grief lately – seems to lose connection mid run and my HR display will drop until it’s in the 60s. Going to submit a warranty claim today, most likely.
Anyway, chest strap did work pretty well for a while today and I figured I likely had some decent data. I opened up the excel file afterward and did find that 0.75 corresponded with 146 bpm (hr drift had put my aet in the low 150s). However, looking at the artifacts per reading, I don’t have any readings with fewer than 6 artifacts. Average of all my readings is 41 artifacts – seems very high! Especially considering what Al said about throwing out any with more than 2 artifacts. Could potentially be related to the issue with my strap?
I’m going to research about how to prevent artifacts and see about getting my cheststrap monitor looked at. Curious what others find!
Thank you, Scott! Set that alarm lower a few weeks ago and have been doing much better at anticipating changes. Thank you both, again!
Awesome! Thank you, Lindsay. Yea I’m definitely keeping a close eye on my heartrate but I’ll give myself a bit of a larger, lower range so there is some more wiggle room below aerobic threshold.
Sounds great, yes, strength + base building sounds like a good plan. Thanks for taking the time to review and reply. Looking forward to reporting back with how it all went.