Short-term and long-term PQ, QT and R-R intervals' variability at the resting condition and after exercise testing in healthy Anglo-Arabian horses

• Autorzy: Paslawska U. , Zysko D. , Noszczyk-Nowak A. , Paslawski R.
• Języki publikacji: EN

Abstrakty

EN

The duration of electrocardiographic (ECG) parameters: PQ, QT and R-R intervals change during long-term and short-term observation as the consequence of the fluctuations in autonomic nervous system activity among others dependent on the exercise and resting. There is no data of horse breed influence on these parameters. The aim of the study was to assess the duration and the variability of the PQ, QT and R-R intervals in the resting conditions and after exercise testing in Anglo-Arabian horses. Material and Methods: 27 healthy Anglo-Arabian horses aged 3.4 ± 1.0 years (15 male, 12 female) had ECG examination in the standing position using Einthoven system of leads. The longest and the shortest PQ, QT and R-R intervals were measured after night rest and after exercise testing and the means were calculated. Conclusions: 1) In Anglo-Arabian horses the difference between the longest and the shortest PQ interval at rest vs. after exercise is 0.06 ± 0.05 vs. 0.03 ± 0.02, QT interval is 0.04 ± 0.03 vs. 0.04 ± 0.04, R-R interval 0.19 ± 0.15 vs. 0.08 ± 0.11. 2) The PQ and R-R intervals reveal high short-term variability either at the resting conditions or after exercise testing. 3) After exercise testing PQ, QT and R-R intervals are shorter than at the resting conditions. The delta PQ and R-R are 2 times smaller in contrast to delta QT which is constant. 4) The PQ and R-R interval variability was greater at the baseline condition than after exercise testing. The QT variability was similar at baseline condition to that after exercise testing.

Słowa kluczowe

EN

electrocardiographic parameter; short-term observation; long-term observation; R-R interval variability; exercise testing; healthy animal; Anglo-Arabian horse; horse; heart; autonomic nervous system

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 2012
• Tom: 15
• Numer: 1
• Opis fizyczny: p.55-59,ref.

Twórcy

autor

Paslawska U.

• Department of Internal Diseases with Clinic for Horses, Dogs and Cats, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Pl.Grunwaldzki 47, 50-366 Wroclaw, Poland

autor

Zysko D.

autor

Noszczyk-Nowak A.

autor

Paslawski R.

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