1.2. Release notes 5
Table 1.1: Summary of Kubios HRV Standard and Kubios HRV Premium features
FEATURES HRV Standard HRV Premium
Data support
• Inter-beat-interval (IBI) data from HR monitors (Polar, Suunto & Garmin) or
text file
• Electrocardiogram (ECG) data in EDF/EDF+, GDF, Biopac ACQ3, ISHNE
ECG, Cardiology XML, and text file formats
−
• Support for ActiHeart & ActiWave Cardio, eMotion Faros, and Zephyr BioHar-
ness data files
−
Pre-processing
• QRS detector for accurate detection of beat-to-beat RR intervals from ECG
data
−
• Artefact correction methods: Threshold based RR correction algorithm / Au-
tomatic RR correction algorithm / ECG based R-wave correction
/ − / − / /
•Trend removal from RR interval time series
Analysis options
• Time-domain parameters: Mean RR and HR, min/max HR, SDNN, RMSSD,
pNN50, HRV triangular index, TINN etc.
• Frequency-domain parameters: VLF, LF and HF band powers (in absolute,
relative and normalised units), peak frequencies and LF/HF ratio
• Spectrum estimation methods: Welch’s periodogram / Lomb-Scargle peri-
odogram / AR spectrum estimate
/ − / / /
• Basic nonlinear parameters: Poincaré plot, approximate entropy (ApEn),
sample entropy (SampEn) and detrended fluctuation analysis (DFA)
• Additional nonlinear parameters: correlation dimension (D
2
), recurrence plot
analysis (RPA), multiscale entropy (MSE)
−
• ECG derived respiration for accurate respiratory sinus arrhythmia (RSA) anal-
ysis
−
• Time-varying analysis: time trends for time-domain and frequency-domain
parameters, spectrogram and Kalman smoother based time-varying spectrum
estimates
−
Reports and results export
• HRV reports (PDF reports) including: General time-domain, frequency-
domain and nonlinear results / Time-varying analysis results
/ − /
• ECG print (PDF report) showing the raw ECG trace for selected time period −
• HRV analysis results export options: PDF file / Text file / MATLAB MAT file / / − / /
• “SPSS friendly” batch file export (ideal for group analyses or repeated mea-
surements)
−
1.2 Release notes
Since this is the first commercial release of Kubios HRV, launching the Kubios HRV Standard and Kubios
HRV Premium versions, we do not describe here details of the version history. Instead we summarise
here the new features available in the Standard and Premium versions (ver. 3.0.2) compared to the
previous release (ver. 2.2) published in [49].
Main new features of Kubios HRV Standard and Kubios HRV Premium ver. 3.0.2 (compared to ver.
2.2) are (*indicates features available only in the Premium version):
• Data support: 1) Polar IBI file support updated; 2) Custom ASCII file import support updated; 2*) ActiHeart
and ActiWave Cardio data support added; 3*) Zephyr BioHarness data support added; 4*) annotations support
for EDF+ files updated.
• Pre-processing: 1*) An automatic RR artefact correction method was added. The new method provides
enhanced artefact and ectopic beat detection performance and does not require a manual selection of optimal
threshold value.
• Time-domain HRV parameters: 1) Computation of minimum and maximum HR as average of 5 beats (default
value, can be changed in preferences) was added; 2) NN50 and pNN50 parameters renamed as NNxx and
pNNxx (default threshold is 50 ms, can be changed in preferences).
Kubios HRV (ver. 3.0.2)