Suunto ZoneSense

SamuelP

@timecode it happened me the first time a few weeks ago. I didnt wet the belt before my run. I guess the connection was good enough for HR but not the r-r data. After a while probably my sweat made the connection better or something?

isazi

@SamuelP indeed, if the data is too noisy it is not used for ZoneSense, data needs to be quite clean to be used.

timecode

@SamuelP good hint, thanks. I will try it again tomorrow and keep this in mind.

SamuelP

@isazi would be nice if suunto app could tell the quality of the data(like runalyze), would help with all the confusion

Brad_Olwin

@timecode If the HR belt dries and/or you have a tech shirt and dry belt it can cause problems. I thoroughly wet my belt before I run and I typically sweat enough that the belt stays wet. If you stop and dry out it could also be an issue.

timecode

@Brad_Olwin thanks. I also always wet the belt and sweat a lot, like A LOT. But it of course can happen that it dries out - today was quite cold, so it’s possible. I’ll try again tomorrow.

Brad_Olwin

@timecode said in Suunto ZoneSense:

@Brad_Olwin thanks. I also always wet the belt and sweat a lot, like A LOT. But it of course can happen that it dries out - today was quite cold, so it’s possible. I’ll try again tomorrow.

I rarely have loss of data from ZS but it has occurred. The last time this happened my belt battery was about done. I finally remembered to check it.

timecode

@Brad_Olwin just fyi, today I ran again with the HR strap and as you can see time spent in each zone on the watch is different as in the app. There’s again a gap at the end. I am sure it’s not an issue with the strap, it’s wet, fairly new and a brand new battery.

Brad_Olwin

@timecode the watch is real time and the app calculates from synced data. Those are very similar IMHO 30s ± for VO2M does not seem like much.
Don’t know about the end, perhaps R-R data is noisy from strap drying or static from tech shirt, don’t know. I have not seen this in my experience.

timecode

@Brad_Olwin ah ok, I thought data in watch == data in SA. Good to know, thanks. Will “investigate” further.

Stefano M64

The past week a made a short easy run (I’m not a runner) primarily to check if the VO2max estimation I got by walking (46.1-46.2) was similar to the one I would obtain by running. Since it resulted to be 45.5, the answer is yes, they are pretty close, ok.
The part on which I would like to have an opinion from someone more expert on the argument is relative to the ZoneSense: I walked for 10 minutes with a cadence of 55/60 then increased to about 70, the HR increased from about 100, to 150-160. For most of the time DDFA index was in the aerobic green zone, with two period in the yellow zone, which started at about 150 bpm the first time and at 160 the second time. Previously, I got 3 estimations of the aerobic threshold (134-136-137) while training at the gymn. For my age (61) the usual formula gives an HRmax of 159 pbm, another one I found (213-0.65*age) gives 173 pbm, from which I should have the aerobic threshold at about 134, in line with the previous estimation. So, I was quite surprised to see the transition from ZS green to yellow zones at 150 pbm or even at 160 pbm. By following this forum, I learned that HR zones based on age are just a vague indication, however I’m bit scared to be pushed to training to hard, what I want is just to keep fit (but I like to experiment and understand). Any comment is welcome!

GiPFELKiND

@Stefano-M64 i never would use zone sense as training indication or as reason to train harder as you feel. Go to an medical doctor and make a lactat running Test. There you got your right and personal heart rate and Training zones. Good Option here is to do this with Spiroergometrie system.

Egika

@Stefano-M64 the use of HR to define a threshold for aerobic/anaerobic/VO2max regions is not a fixed one that is valid over many weeks. It is not even valid for multiple days.
This is why lactate tests on a treadmill or cycle are valid for the time of testing only.

ZoneSense gives you a live (or after activity) information about your body status.
What you are seeing is, what makes it so innovative.
The threshold heart rates vary from day to day, depending on muscle and body fatigue, illness etc.

You can just use the ZS screen on your watch during training, to make sure you stay in the green area, if this is your goal.

thanasis

@Egika said in Suunto ZoneSense:

@Stefano-M64 the use of HR to define a threshold for aerobic/anaerobic/VO2max regions is not a fixed one that is valid over many weeks. It is not even valid for multiple days.
This is why lactate tests on a treadmill or cycle are valid for the time of testing only.

ZoneSense gives you a live (or after activity) information about your body status.
What you are seeing is, what makes it so innovative.
The threshold heart rates vary from day to day, depending on muscle and body fatigue, illness etc.

You can just use the ZS screen on your watch during training, to make sure you stay in the green area, if this is your goal.

i also want to rely on zonesense but i really struggle to understand how is it possible when going uphill , with over 170Bpm for some minutes the app to be showing i am in the green zone… In principle i am excited about relying on hr variability but am i harming myself by relying on it? that’s the big question for me

Francesco Pagano

@thanasis from my perspective this question arises not only when going uphill, but when increasing the intensity in general.
When I started using ZS I mostly did easy runs same as I did before, around my theoretical AeT. After months, I realised that ZS was confirming my assumptions simply because my RR intervals are more varied above that threshold; but if I do a hilly run or long tempo intervals, then ZS shows my AeT at a higher HR intensity, and that’s likely because of changing the context where those variations occur. If you read how DFA alpha1 and DDFA work this limitation seems to make sense.

borgelkranz

A short question:

I know from experience that zonesense improves when used often in one type of activity, e.g., indoor rowing. I read that it’s a good idea to do at least three light aerobic trainings to improve later readings (calibration).

What I want to know is: does this translate to other activities of the same activity family? Say from running on treadmill to running on track? The activity types are color coded after all.

raven

@borgelkranz My guess is “no” but dont know for sure. I’ll note that “indoor rowing” is red while “rowing” is blue which annoys me. Red is apparently the “indoor workout” color, but “indoor cycling” is orange and matches other outdoor cycling.