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© Oxford University Press

Computing heart rate variability using spectral analysis techniques: HRVUAB, a ready-to-use program

J. Altimiras *, M. Feliu , A. Aissaoui and L. Tort

Unitat de Fisiologia Animal, Facultat de Ciències. Edifici C, Universitat Autònoma de Barcelona E-08193 Cerdanyola del Vallès, Spain

*To whom reprint requests should be sent

The application of spectral analysis techniques to study the nervous modulation of the vertebrate heart have given interesting results in clinical studies although nearly nothing is known in lower vertebrates. A program to compute this heart rate variability is described in detail and preliminary results are shown. Data is first statistically qualified and fragmented in smaller segments, each being further processed through linear trend removal and normalization before the application of the Fast Fourier Transform algorithm to estimate the interval spectrum. All consecutive periodograms are averaged and the interval spectrum plotted and saved.

Received on March 28, 1994; accepted on July 21, 1994

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