Hi Jesus. I also do HRV related researches. I don't know whether there is any free software for HRV analysis. Actually I just know this Kubios software from here in your question. I have no idea on exactly what you are trying to do, but I think I can write some MATLAB codes according to your specific tasks, provided that this software cannot meet your needs.

Hi Peng. I appreciate your answer and your collaboration. The research i'm doing is refered to how HRV is altered in order to EPOC and Training Load. Focus on HRV, im only analyze 5' minutes morning samples of HRV to determinate SDNN, HF/LF, ... The problem is that the last version of Kubios is so slow and often crash on my PC, so thats the point of discover some new software to keep going with the research.

get it. Maybe in the Kubios, many additional codes are configured to make sure that it can be executed normally and can support a variety of HRV analysis approaches. I think some self-designed MATLAB codes can well meet your tasks. maybe we can talk in detail on your specific needs and see what measures of short-term HRV are required, and I can write some MATLAB codes on them. I have studied 5-min's HRV for several years, and am very interested on the application of HRV on such as kinesiology or sport science etc.

There's so many. Most of these are Matlab toolboxes, but you can either get access to that or get someone to compile them for you (not that hard):

http://www.artiifact.de/

http://sourceforge.net/projects/hrvas/

http://sourceforge.net/projects/mykardia/

This one is in R:

http://rhrv.r-forge.r-project.org/

This is a standalone:

http://milegroup.github.io/ghrv/

Hi,

to chime in briefly: artiifact comes compiled (windows 32 and 64 bit versions are available). Together with the free matlab compiler runtime (just google matlab MCR), you can also run it like a standalone program.

Best,

SMS

Thanks Peng, James and Stefan for your answers. I will check and test all this sofware that you text me and select the one that fit best to me. In short i'll publish a little report about HRV and his relation with endurance sports in two period year season. If any of you are interested, please contact with me. Again thanks for your answers. 

Hello gents. Side question : How do you load a text based R-R file (say a file exported from Polar V800's database) into any of the above applications? I tried loading one to gHRV but I get the error message "it does not seem to be a valid ascii file". Do you have to do some preliminary file conversions? Thanks.

You should try our new Kubios HRV Standard 3.0. It supports (among other formats) Polar RR interval files and computes all standard HRV measures used in scientific literature. Kubios HRV is available for Windows (64bit) and macOS, and soon also for Linux. You can find it from here: http://www.kubios.com 

RHRV (R Heart Rate Variability ), an opensource package for the R environment that comprises a complete set of tools for Heart Rate Variability analysis. RHRV allows the user to import data files containing heartbeat positions in the most broadly used formats; eliminating outliers or spurious points present in the time series with unacceptable physiological values; plotting HRV data and performing time domain, frequency domain and nonlinear HRV analysis. RHRV is the first R package for HRV analysis.

http://rhrv.r-forge.r-project.org/

If you are looking for a system for your HRV research, maybe you would like to check Aidlab ( https://www.aidlab.com/developer ) ? It's a fully fledged hardware + software platform, dedicated for data scientists - already used by some of the top universities in their research.

(I am the author of Aidlab)