Camera Heart Rate Variability
Camera HRV uses a technique called photoplethysmography (PPG for short), which consists in detecting changes in blood volume during a cardiac cycle, by illuminating the skin and measuring changes in light absorption. PPG has become quite a popular non-invasive method for extracting physiological measurements such as heart rate and oxygen saturation. However, most applications today focus simply on heart rate or respiration rate.
Camera HRV can assess cardiac autonomic regulation through quantification of sinus rhythm variability. Since HRV aims at quantifying autonomic regulations, it can be used as marker of sympathetic or parasympathetic predominance, and therefore become relevant in many applications. In athletes for example heavy training is responsible for shifting the cardiac autonomic balance toward a predominance of the sympathetic over the parasympathetic drive, and HRV analysis attempts to quantify this shift.
Other applications span from stress monitoring, assessment of pathological conditions and even emotional regulation during financial decision-making.
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)
- configurable time window for feature extraction (30 seconds to 1 minute)
- automatic RR-interval correction
- data export/storage on Dropbox or via email (csv format, exports rr intervals, and computed features).
Find out more at this link: http://www.marcoaltini.com/2/post/2014/01/heart-rate-variability-using-the-phones-camera.html
Category : Health & Fitness
Reviews (20)
This app gives no interpretation of the data. I have been using Welltory, but wanted to validate the data I've collected against a different app. This is just a bunch of numbers that are meaningless to most people. I'm bummed I paid for this.
Easy to use and clear results. My measurements were very similar to the ones I got with another app called HRV Camera. I also tried Welltory but for some reason Welltory gives me much higher readings for RMMSD and SDNN than both HRV camera app and Camera Heart Rate Variability
This app describes a Feature Window that is supposed to show you additional measurements such as HF, but there is NOT a Feature Window, and you only can see the end number. Also no way to get help...
Using a oneplus 7 pro, it seems the app selects the middle or the top camera, which seems to be too far from the flash led to get a good reading.
Simple and effective, no external sensor required. Does exactly what it aims to do and does it well.
I loved this app on my Samsung A3. But with the fairphone the camera heats up so much that I can't measure. Any suggestions how to solve this? Otherwise awesone App and I would love to be able to use it again ;)
Extremely painful unless your phone has a specialty sensor. Not worth the price or hassle.
Simple and effective analysis of your HRV within a minute. All sorts of applications. Perfect.
most of features of this app did not work on my phone (oneplus 3) Disappointed as looks great if it works
Hi. Can it be possible to have the 5 minutes reading option? And also to have the baseline graphs?
Not always easy to use, but very useful 👍
This is an app for taking professional measurements of heart rate variability. I would like to suggest that a brief description of the various parameters (e.g., rMSSD) is provided for those learning about heart rate variability for the first time.
Never got my refund
Simple. Effective. Convenient.
I like that i can check it my hrv any time. I like that it just gives me the analysis and no commentary. For my purposes I wish that it had a 5 minute duration option. 60 seconds is too short if attempting to identify the impact on HRV of an intervention like thoughts or breathing. I also wish that the data export would include the date of the measurement. It shows up in the history list but is not included in the data export.
App fails to record HRV sometimes. Gives a long message to shutdown all apps and try again. I am in Android 8.0 and the app was working until recently. Hope an update can soon solve this.
Nice app. I would recommend though to start with hrv4training app from the same developer.
How do i read the results with this app anybody help me out
I'd recommend to start with the great app HRV4Training from the same developer. This one is great for the more advanced in self-quantification. Does what it sais, and in a great, non-BS way. HRV measurement works well via camera.
This app is perfect. It feels like an app that was made for people who simply want results and dont care about aesthetics - and thats not to say its ugly, I would actually call it elegant. To the devs: please don't break this app with a major update, it is so great as is. the price point is fair and i love how the data is collected in a way that is simple to extract and wrangle. I would love to see this released as opensourced down the road for further evolution. Great work nerds! ;)