Heart Rate Variability Logger 4+

A.S.M.A. B.V.

Designed for iPhone

    • 3.1 • 7 Ratings
    • £9.99

Description

Heart Rate Variability Logger lets you record, plot and export time, frequency and non-linear HRV Features (includes experience sampling, RR-interval correction, DFA alpha 1 for aerobic threshold estimation in real-time, comparison between recordings, activity monitoring & step counting, location tracking).

Heart Rate Variability Logger requires a Bluetooth Low Energy (also called Bluetooth Smart or BLE or 4.0) heart rate sensor (we recommend Polar H7 or H10)

Main features:
- Extracts, plots, stores and exports heart rate, rr-intervals, time and frequency domain heart rate variability features (AVNN, SDNN, rMSSD, pNN50, LF, HF, LF/HF, alpha 1 from DFA)
- Configurable experience sampling for events annotation
- Comparison between up to 3 recordings lets you get a better understanding of differences in HRV under different contexts in a glance. The comparison modality includes also Outlier removal
- Activity tracking: step counter or accelerometer derived motion intensity for user context (step counter only for iPhones 5S)
- Location tracking, either using GSM/WiFi networks (low battery consumption) or GPS (high accuracy)
- Configurable time window for features computation (choose between 30 seconds, 1, 2 or 5 minutes)
- RR-intervals correction can be enabled to prevent ectopic beats or artifacts from affecting HRV features
- export for Kubios
- Filters data based on the selected threshold
- Shows HR in the app icon
- Data export using iTunes or Dropbox
- Tested for recordings longer than 24 hours

Please note that continued use of GPS running in the background can dramatically decrease battery life.

What’s New

Version 5.1.2

minor changes

Ratings and Reviews

3.1 out of 5
7 Ratings

7 Ratings

Djc3 ,

Disappointing

I bought this to try and use it for the DFA-alpha1 testing of aerobic threshold but have also adopted using it for morning HRV logging. The morning logging is going well but the logging during runs has a fundamental flaw. Twice I have set out with everything running as required, but my phone in my waist belt so not visible to me. On return from the run I find the logger app is sat waiting for me to select the BT HR monitor, as though a drop out occurred at some point. Consequently most of the test run is wasted. My other running app, iSmoothRun, handles this fine since it has a setting to tell it which sensor to use at all times. This logger should do the same, whilst recording, if it has a drop out it should try and pick up the same sensor. Without this I cannot rate the app higher. It was not a cheap app.

Tri-Dragons Coaching ,

Game Changer??

Have been using this app over the past week to assess the reliability of using the DFA (alpha 1) metric to locate the Aerobic Threshold (aka ... VT1, LT1) for my athletes at Tri-High Performance. I have only been using a basic Bluetooth chest strap rather than the polar strap that HRV4TRAINING recommend to see if could be rolled out at minimal cost. When used indoors on a bike trainer or treadmill, I have found that a DFA (alpha 1) reading of 0.75, has consistently coincided with around 85% of Lactate Threshold Heart Rate (as determined by the final 20 minute HR of a 30 minute TT). This would certainly correlate very well with established AeT heart rate estimates. To support this, intensities that produce readings above 0.75 have always felt very ‘conversational’ , and intensities that produce values below 0.75 have always felt less than ‘conversational’. I this metric will prove to be a reliable resource to endurance athletes everywhere. I have had issues using it outdoors over variable terrain, but in a controlled environment - it has so far provided me with what appears to be an extremely useful assessment of heart rate at the aerobic threshold.

Ryko88 ,

Good idea but I can't get it to work

Great idea but I can't even connect to my Polar H7 HRM... Not good!

App Privacy

The developer, A.S.M.A. B.V., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More

Supports

  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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