Abstract
The present study was performed to compare R-R interval data and heart rate variability
indices obtained from the Polar S810i and the Omega Wave Sport System for a total
of 96 adults in a supine position. Data were simultaneously recorded with the Polar
S810i and the Omega Wave Sport System and processed by unique software. Bland-Altman
analysis for the R-R intervals shows minimal bias for free and paced breathing. No
significant differences were observed for heart rate variability indices derived from
the signal from both devices, except for the power of the high frequency band and
the acceleration changes index during either free or paced breathing. Coefficients
of correlations were all above 0.96. These data suggest that both systems are valid
to record R-R interval signals and to obtain a valid analysis of heart rate variability.
However, Omega Wave Sport System enables data to be collected without any artifacts
making the analysis of heart rate variability easier than the analysis of Polar S810i.
Nevertheless, Polar S810i continues to be more practical in clinical and applied situations
due to the affordability of the device.
Key words
heart rate variability - polar S810i monitor - omega wave sport system - field-based
recording
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Correspondence
Eva Parrado
Universitat Autonoma de Barcelona
Laboratori de Psicologia de
l’Esport Ed B
08193 Bellaterra
Spain
Phone: +34/93/58 683 95
Fax: +34/93/581 33 29
Email: eva.parrado@uab.cat
