KARDIA: A Matlab software for the analysis of cardiac interbeat intervals

Pandelis Perakakis, Mateus Joffily, Michael Taylor, Pedro Guerra, Jaime Vila

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)


This article presents KARDIA, a Matlab (MathWorks Inc., MA) software developed for the analysis of cardiac interbeat interval (IBI) data. Available functions are called through a graphical user interface and permit the study of phasic cardiac responses (PCRs) and the estimation of time and frequency domain heart rate variability (HRV) parameters. Scaling exponents of heartbeat fluctuations are calculated with the detrended fluctuation analysis (DFA) algorithm. Grand average and individual subject results can be exported to spreadsheets for further statistical analysis. KARDIA is distributed free of charge under the terms of GNU public license so that other users can modify the code and adjust the program's performance according to their own scientific requirements.

Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalComputer Methods and Programs in Biomedicine
Issue number1
Early online date6 Nov 2009
Publication statusPublished - Apr 2010
Externally publishedYes


  • Computer software
  • Detrended fluctuation analysis
  • Heart rate variability
  • IBI
  • Matlab
  • Phasic cardiac responses

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