Watch App : HRV

Former Member over 10 years ago

HRV app. Discussion, report bugs, suggested features, etc...

HRV
Get the app.

Graphing.
The design currently only saves to 1 location per day. The timestamp is taken when the test starts, so autostart will take the timestamp at the scheduled time. This means that any saved test will overwrite any previous test of that same day. A day is calculated from the local timezone, so travelling won't disrupt the storage so long as you have updated the timezone before starting the test. The averages are a 30 day mean average.

Description & Explanation
Wouldn't that be nice. Will happen, but might take a while.
This page could be useful.

Notes
- Your device must have firmware that supports Connect IQ Apps.
- You can save the results by creating a log file. To do this you must work out which name has been applied to the HRV app file. The apps are in the /GARMIN/APPS folder. It will be a name something like A6227C9B.PRG. You then create a log file with the same name, e.g /GARMIN/APPS/LOGS/A6227C9B.TXT. Each reading you save will output a result formatted as ISO8601 date & time, hrv, avg pulse, 30 day hrv avg, 30 day pulse avg.

Former Member over 10 years ago

What more can I say? If post #149 doesn't cover it, then I can't explain it to you.

wifima over 10 years ago

What device are you using? I believe the Fenix, Vivo & Epix fonts don't match what developers get to see in the simulator. They are the right size in the simulator, but as far as I know, display smaller on all but the 920. When the CIQ SDK & the hardware match, you will get bigger numbers.

Hi,

indeed, I am using Fenix3.

The figures are about 2 millimeters (max). What about implementing another screen, same as the app turns into after some time when displaying the figures (only the time, but not the HRV and HRrest)?

Thanks again for the great app.

Former Member over 10 years ago

My point is, that it is guesswork for me to implement a layout, because I have no idea what the final outcome will look like.

wifima over 10 years ago

My point is, that it is guesswork for me to implement a layout, because I have no idea what the final outcome will look like.

OK, thats a pity. I could serve with some screenshots if this is of any help?

Former Member over 10 years ago

No. I have to change the app version each time I publish. I do not wish to go through that process just to see if it may work. Thanks for the offer.

Former Member over 10 years ago

Two questions. First, how did you get the R-R interval? I can only see heart rate, not milliseconds between beats.

Second, did you mean RMS of successive differences, rather than RMS of standard deviation?

(root mean square of the standard deviation) of pulse intervals.

Former Member over 10 years ago

1/ This is a ANT, CIQ, question. Non specific to the HRV app.
2/ No I didn't. What's the difference?

Former Member over 10 years ago

1/ This is a ANT, CIQ, question. Non specific to the HRV app.
2/ No I didn't. What's the difference?

1. I was hoping you'd found a way of getting to R-R interval as you need that to calculate HRV. You can't use heart rate to get HRV.

2. RMS of successive differences is a way of calculating HRV, I'm not sure "RMS of standard deviation" even makes sense as both RMS and SD are operations on data series.

Former Member over 10 years ago

Of course I have the r-r intervals. I am simply saying that is a programming question, and should be in the appropriate forum.
Try looking up RMSSD. That should remove your doubts as to whether it makes sense or not.

Former Member over 10 years ago

Of course I have the r-r intervals. I am simply saying that is a programming question, and should be in the appropriate forum.
Try looking up RMSSD. That should remove your doubts as to whether it makes sense or not.

RMSSD is Root Mean Square of Successive Differences, not Root Mean Square of Standard Deviation. https://www.google.com/search?q=rmssd&ie=utf-8&oe=utf-8