TY - JOUR
T1 - A methodology to quantify the differences between alternative methods of heart rate variability measurement
AU - García-González, M. A.
AU - Fernández-Chimeno, M.
AU - Guede-Fernández, F.
AU - Ferrer-Mileo, V.
AU - Argelagós-Palau, A.
AU - Álvarez-Gómez, L.
AU - Parrado, E.
AU - Moreno, J.
AU - Capdevila, L.
AU - Ramos-Castro, J.
PY - 2015/12/14
Y1 - 2015/12/14
N2 - © 2016 Institute of Physics and Engineering in Medicine. This work proposes a systematic procedure to report the differences between heart rate variability time series obtained from alternative measurements reporting the spread and mean of the differences as well as the agreement between measuring procedures and quantifying how stationary, random and normal the differences between alternative measurements are. A description of the complete automatic procedure to obtain a differences time series (DTS) from two alternative methods, a proposal of a battery of statistical tests, and a set of statistical indicators to better describe the differences in RR interval estimation are also provided. Results show that the spread and agreement depend on the choice of alternative measurements and that the DTS cannot be considered generally as a white or as a normally distributed process. Nevertheless, in controlled measurements the DTS can be considered as a stationary process.
AB - © 2016 Institute of Physics and Engineering in Medicine. This work proposes a systematic procedure to report the differences between heart rate variability time series obtained from alternative measurements reporting the spread and mean of the differences as well as the agreement between measuring procedures and quantifying how stationary, random and normal the differences between alternative measurements are. A description of the complete automatic procedure to obtain a differences time series (DTS) from two alternative methods, a proposal of a battery of statistical tests, and a set of statistical indicators to better describe the differences in RR interval estimation are also provided. Results show that the spread and agreement depend on the choice of alternative measurements and that the DTS cannot be considered generally as a white or as a normally distributed process. Nevertheless, in controlled measurements the DTS can be considered as a stationary process.
KW - agreement
KW - heart rate variability
KW - normal distribution
KW - randomness
KW - stationarity
KW - surrogate measurements
U2 - 10.1088/0967-3334/37/1/128
DO - 10.1088/0967-3334/37/1/128
M3 - Article
VL - 37
SP - 128
EP - 144
JO - Physiological Measurement
JF - Physiological Measurement
SN - 0967-3334
IS - 1
M1 - 128
ER -