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Heart Rate Stress Score

Description

This Datafield calculates your training load based on your heart activity. The HRSS depends on exercise duration and intensity. The HRSS is based on an exponential scaling factor equation. </p><p></p><p>The HRSS code is according to the web extension Elevate (former Name: Stravistix): http://thomaschampagne.github.io/elevate/</p><p>According to Stravistix, HRSS is more accurate than the Training Impulse TRIMP since it takes care of the user Lactate Threshold Heart Rate (LTHR). LTHR is the best average heart rate that an athlete can maintain for up to an hour. Training one hour at the LTHR results in an HRSS of 100.</p>

What’s New

Version 2.1: New Devices added</p><p>Version 2.3: Older Devices with SDK 1.x added</p><p>Version 2.3.1: Fixed bug (some devices didn't start at zero)</p><p>Version 2.3.2: Fixed problems for GPSMAP devices</p><p>Version 2.3.3: Update to CIQ SDK version 3.0.8.</p><p>Version 2.3.4: Update to CIQ SDK version 3.0.11; new devices added

Additional Information

Permissions

This app requires access to:

  • Send/receive data via ANT radio to/from third-party sensors
  • Run in the background when it is not active (potentially affecting battery life)
  • Record additional information into activity files
  • Sensor data (i.e., ANT+, heart rate, compass)
  • Your Garmin Connect™ fitness profile
  • Approach® S60 Approach® S60
  • D2™ Bravo D2™ Bravo
  • D2™ Bravo Titanium D2™ Bravo Titanium
  • D2™ Charlie D2™ Charlie
  • D2™ Delta D2™ Delta
  • D2™ Delta PX D2™ Delta PX
  • D2™ Delta S D2™ Delta S
  • Descent™ Mk1 Descent™ Mk1
  • Edge® 1000 Edge® 1000
  • Edge® 1030 Edge® 1030
  • Edge® 1030, Bontrager Edge® 1030, Bontrager
  • Edge® 130 Edge® 130
  • Edge® 520 Edge® 520
  • Edge® 520 Plus Edge® 520 Plus
  • Edge® 530 Edge® 530
  • Edge® 820 Edge® 820
  • Edge® 830 Edge® 830
  • Edge® Explore Edge® Explore
  • Edge® Explore 1000 Edge® Explore 1000
  • Edge® Explore 820 Edge® Explore 820
  • ForeAthlete® 230J ForeAthlete® 230J
  • ForeAthlete® 235J ForeAthlete® 235J
  • ForeAthlete® 630J ForeAthlete® 630J
  • ForeAthlete® 735XTJ ForeAthlete® 735XTJ
  • ForeAthlete® 920XTJ ForeAthlete® 920XTJ
  • Forerunner® 230 Forerunner® 230
  • Forerunner® 235 Forerunner® 235
  • Forerunner® 245 Forerunner® 245
  • Forerunner® 245 Music Forerunner® 245 Music
  • Forerunner® 630 Forerunner® 630
  • Forerunner® 645 Forerunner® 645
  • Forerunner® 645 Music Forerunner® 645 Music
  • Forerunner® 735XT Forerunner® 735XT
  • Forerunner® 920XT Forerunner® 920XT
  • Forerunner® 935 Forerunner® 935
  • Forerunner® 945 Forerunner® 945
  • fēnix® 3 fēnix® 3, quatix® 3, tactix® Bravo
  • fēnix® 3 HR fēnix® 3 HR
  • fēnix® 5 fēnix® 5, quatix® 5
  • fēnix® 5 Plus fēnix® 5 Plus
  • fēnix® 5S fēnix® 5S
  • fēnix® 5S Plus fēnix® 5S Plus
  • fēnix® 5X fēnix® 5X, tactix® Charlie
  • fēnix® 5X Plus fēnix® 5X Plus
  • fēnix® Chronos fēnix® Chronos
  • GPSMAP® 66i GPSMAP® 66i
  • GPSMAP® 66s / 66st GPSMAP® 66s / 66st
  • MARQ™ Athlete MARQ™ Athlete
  • MARQ™ Aviator MARQ™ Aviator
  • MARQ™ Captain MARQ™ Captain
  • MARQ™ Driver MARQ™ Driver
  • MARQ™ Expedition MARQ™ Expedition
  • Oregon® 7 Series Oregon® 7 Series
  • Rino® 7 Series Rino® 7 Series
  • vívoactive® vívoactive®
  • vívoactive® 3 vívoactive® 3
  • vívoactive® 3 Mercedes-Benz® Collection vívoactive® 3 Mercedes-Benz® Collection
  • vívoactive® 3 Music vívoactive® 3 Music
  • vívoactive® HR vívoactive® HR
Average Rating: (10 Ratings)

MarcioCoragem
10 May 2019 | Version 2.3.4

Its works, but if the hr connection is lost for a moment for example a weak battery, it reset the field to 0 in the middle of the activity.

Developer Reply
11 May 2019, Rider68

Thanks for your feedback. To understand the issue better it would be great if you could send me a screen capture of the chart.

Justin Poag
08 May 2019 | Version 2.3.3

Does exactly what it's supposed to do.

Alexandros
27 April 2019 | Version 2.3.3

Nothing to say. Just Great

Luigi G.
10 February 2019 | Version 2.3.3

Anther thing I do not get. If HRSS is based on the TRIMPexp = sum(D x HRr x 0.64 x exp(y)) with y=HRr x 1.92 for men, where does the individual lactate threshold HR come into play? Thanks

Developer Reply
11 February 2019, Rider68

I have added the calculation of HRSS to the description of the datafield. Hope its more clear for you now

Luigi G.
20 January 2019 | Version 2.3.2

That's a great application. It works just fine. Much much better and stable than stuff like TRIMP, TRIMP/hour etc. Great job man!

Michael
11 January 2019 | Version 2.3.1

This is a really useful addition to my Garmin devices. Also, I reported a bug to the developer and he was very responsive in fixing it. Thanks so much!

Sergio
12 November 2018 | Version 2.3

Very close to the HrTSS data of trainingpeaks. Good Job!!!!! Thanks

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