Zonesense readings

2b2bff

@Brad_Olwin you don’t need to go for a HRM Pro for this. I have an HRM Dual that can provide one ANT+ and one Bluetooth stream. I used this for some time to compare my experience of the Race S against the Epix Pro…

Brad_Olwin

@Ian-Beveridge said in Zonesense readings:

@Brad_Olwin Two R-R streams! You’re scaring me now!
If you could only have one strap which one would it be - based on your own experience?

I run long distances (50k to 100 mile) so the only strap that doesn’t chafe is the Suunto. It is small and I like it quite a bit. I am still using the sensor from when I bought an Ambit3Peak. I replace belts about once a year.

Brad_Olwin

@2b2bff When I bought the Pro the Dual was not made or for sale I think.

Ian Beveridge

@Brad_Olwin I still have my Polar chest strap and watch from 1993. What surprises me today is the exponential acceleration of tech development. I’m going to work on several proposed fixes for the HRV quality from the H10+ - I’ve already unpaired it and re-paired it - done a soft reset on the watch - cleaned the plastic and metal of the strap with 95% alcohol and adjusted the tightness of the strap around my ribcage (but I can still breathe).

If your runs are 50k to 100 miles I assume you are pretty much aerobic all the time. When I remain aerobic on a bike ride or run I’m not getting any of the remaining problems that I’ve been I’ve been getting with the equipment - seems it gets a lot more affected by high intensity work. If working on the strap as described above doesn’t bring results I’ll get a Suunto strap and hope for the best.

brave_dave

@Brad_Olwin yeah, for me it’s different. I don’t trust ZS on individual runs/real-time at all but averaging detected thresholds over a lot of runs could be quite accurate at one point, I think. Would like to compare these values with my measured thresholds. But there is no way to get these averaged values from the watch or app, or?

So you mainly do trail running with some hills/mountains?
For calculating TSS this is really challenging, what do you use if you don’t use TSS(hr)? Or do you not use TSS at all?
I originally come from road running where TSS with correctly set HR zones is really good. On long steady efforts it is almost in line with TSS(hr) while it also gives really good results for shorter intervals where TSS(hr) is not that accurate due to the slow responsiveness of the HR.
Now that I do a lot of trail running recently, I found TSS to be not that good because of the elevation. Think TSS(hr) might be probably best…What is your experience?

brave_dave

@Ian-Beveridge I use the same H10 for almost 5 years now and never really had any problems with it. Whether it was Polar, Garmin or now Suunto. Or course, I changed the belt (only the strap, not the transmitter) about every year, as they wear down and then they cause some drop outs under difficult conditions. I know you said your belt is quite new, but maybe your strap is faulty. If you are willing to spend some money for testing, you could try to just order a new strap and see if that solves the issues.

Ian Beveridge

@brave_dave Thank you for the “replacement strap” idea - I just realised that I actually have a very new “compatible” strap available that I can run a test with.

I see by using an AI search that the H10 is the most highly rated of the chest sensors in general so I’ll persist in trying to get it to perform.

Brad_Olwin

@brave_dave said in Zonesense readings:

@Brad_Olwin yeah, for me it’s different. I don’t trust ZS on individual runs/real-time at all but averaging detected thresholds over a lot of runs could be quite accurate at one point, I think. Would like to compare these values with my measured thresholds. But there is no way to get these averaged values from the watch or app, or?

I do not worry about thresholds anymore……if I did not have to set them on the watch I wouldn’t and would prefer 3 zones set by ZS and updated automatically. When I am fresh my ZS zones match my lab tests….most of the time I am not fresh and I am amazed at how ZS can vary. It matches RPE well for me and is a useful tool.

So you mainly do trail running with some hills/mountains?

Yes, I Iive near Boulder, Colorado and run year round but also ski tour and ski mountaineering in the winter. All my runs except Recovery have a minimum of 300m elevation gain/loss for each hour to 1.5h, sometimes a lot more.

For calculating TSS this is really challenging, what do you use if you don’t use TSS(hr)? Or do you not use TSS at all?

Since TSS(hr) is not that accurate (steep downhill technical terrain or slow uphill technical terrain) I follow suggestions by Uphill Athlete and add 10 TSS for every 300m (1000 feet) of elevation gain AND loss. I then compared this to TSS in Suunto and used TSS(Met). Since TSS(ZoneSense) is now available I have tested and found it to be quite good for me.

I originally come from road running where TSS with correctly set HR zones is really good. On long steady efforts it is almost in line with TSS(hr) while it also gives really good results for shorter intervals where TSS(hr) is not that accurate due to the slow responsiveness of the HR.

TSS is pretty much useless on our trails.

Now that I do a lot of trail running recently, I found TSS to be not that good because of the elevation. Think TSS(hr) might be probably best…What is your experience?

I stated that above, I have used RPE for 15 years now and ZoneSense for me is in line with my RPE except when I have recovery runs where I go too hard and ZS keeps me at the effort I need to.