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Validity and reliability properties of canine short-term heart rate variability measures-a pilot study
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Physiotherapy.
Reg Jamtland Harjedalen, Unit Res Educ & Dev, Ostersund, Sweden.;Mid Sweden Univ, Dept Hlth Sci, Ostersund, Sweden..
Swedish Univ Agr Sci, Dept Clin Sci, Uppsala, Sweden..
Canine Fitness Ctr, Calgary, AB, Canada..
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2015 (English)In: Journal of Veterinary Behavior: Clinical Applications and Research, ISSN 1558-7878, E-ISSN 1878-7517, Vol. 10, no 5, 384-390 p.Article in journal (Refereed) Published
Abstract [en]

The objective of the pilot study was to compare validity and reliability properties of Polar RS800CX (Polar Electro Oy, Kempele, Finland) against simultaneously recorded electrocardiogram (ECG) measuring time-and frequency-based short-term heart rate variability (HRV) parameters, in dogs during stationary standing position. Five-minute recordings with less than 5% error rates from inter-beat interval (IBI) series obtained by Polar RS800CX and ECG, in 8 adult dogs, were used for HRV analysis. Polar data were statistically compared to the ECG data to assess for systematic differences in time-and frequency-based HRV parameters. Relative and absolute reliabilities were estimated by intraclass correlation coefficient, Spearman rho, Bland and Altman analysis, standard error of measurement, and standard error of measurements in percentage. Paired t test was used to determine the statistical significance of differences between the measurement methods. Results: There were high correlation coefficients between HRV parameters obtained from Polar RS800CX and ECG. Intraclass correlation coefficients were 0.98-1.00, and Spearman r was 0.93-0.98. There were differences between the methods in 2 HRV parameters, the standard deviation of normal-to-normal IBIs (SDNN) (P = 0.035) and the square root of the mean squared differences of successive normal-to normal IBIs (RMSSD) (P = 0.034). Standard error of measurements was between 2.8-11.6% in ECG and between 2.6-11.8% in Polar, indicating rather high measurement error in 3 of the HRV parameters in both measurement methods. Close agreements and high correlation estimates in this pilot study indicated acceptable relative reliability in Polar RS800CX measuring time-and frequency-based HRV parameters in the group of dogs studied. However, the present pilot study revealed differences between Polar RS800CX and ECG in time-based standard deviation of normal-to-normal and square root of the mean squared differences of successive normal-to normal parameters, and that small amounts of erroneous IBI segments from Polar negatively impact on the validity and reliability properties of Polar RS800CX.

Place, publisher, year, edition, pages
2015. Vol. 10, no 5, 384-390 p.
Keyword [en]
behavior, dogs, heart rate variability, reliability, validity
National Category
Veterinary Science
URN: urn:nbn:se:uu:diva-264313DOI: 10.1016/j.jveb.2015.05.006ISI: 000360648200003OAI: oai:DiVA.org:uu-264313DiVA: diva2:861160
Available from: 2015-10-15 Created: 2015-10-09 Last updated: 2015-10-15Bibliographically approved

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Essner, AnnZetterberg, LenaHellström, Karin
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