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HRV4Training - app details

16/12/2013

IMPORTANT: this post is outdated. HRV4Training offers now many more features and a better user experience, please refer to HRV4Training.com for the latest updates. Thanks.

HRV4Training is an app that helps you optimize your goals and prevent overtraining by measuring your Heart Rate and Heart Rate Variability (HRV). I built this app while trying to understand better how I was recovering from my running trainings, since HRV is a proxy to parasympathetic activity and therefore physiological stress (read more here). HRV4Training does not require a heart rate monitor, since it can accurately assess your HRV using the phone's camera.

Features

HRV-based advice helps you to adapt your trainings based on objective measures of recovery
configurable test (single or orthostatic, choose test duration between 1, 3 or 5 minutes)
configurable paced breathing to improve test reliability (choose between 6, 8 and 10 breaths per minute)
extracts and stores the following heart rate variability features while lying down and/or standing: heart rate, mean of beat-to-beat intervals (AVNN), standard deviation of beat-to-beat intervals (SDNN), square root of the mean squared difference of successive R-Rs (rMSSD), number of pairs of successive R-Rs that differ by more than 50 ms (pNN50), low frequency power (LF, 0.04-0.15 Hz), high frequency power (HF, 0.15-0.40 Hz)
works with Bluetooth SMART heart rate monitors (tested with Polar H7, mio alpha and Armour39) or simply your finger (phone camera)
shows the PPG signal view to ensure signal quality during the test if the camera is used instead of a Bluetooth SMART sensor
lets you annotate your training days and training intensity to provide more accurate analytics on how your trainings impact your physical condition
HRV4T Fitness Points to provide a single, straightforward metric to analyze your physical condition
weekly and monthly overviews
custom analysis on the relation between trainings and HRV
data export via email or Dropbox

RR-intervals correction

This post serves as a quick start guide for the app, while more details on HRV features and HRV analysis for fitness can be found in previous posts.

15 Comments

Heart Rate Variability for Training

1/12/2013

6 Comments

This post provides information on Heart Rate Variability (HRV), with focus on usage of HRV features for training. Monitoring physical performance is of major importance in competitive sports. The rationale behind using HRV, is that other indices commonly used (e.g VO2max) cannot be easily and frequently determined [11]. Specifically, HRV analysis can be used to monitor training in two ways, related to short and long term changes in HRV:

training load: short-term changes in HRV
fitness level: long-term changes in HRV

Overview + Hardware & Software (+data)

6 Comments

HRV4Training - app details

Features

Heart Rate Variability Logger - app details

Heart Rate Variability for Training

Overview + Hardware & Software (+data)

Marco ALtini

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