Dear all,
Any suggestion for correct assessment of Heart Rate Variability in Dogs especially in the frequency domain?
Thanks,
Time domain measures are universal (see link attached)
Put any data and you will see something.
You may expect pronounced RSA.
However concerning frequency domain I have some methodological doubts. The standards are for humans. The HF range is centered on the respiratory frequency 0.3 Hz. The LF range is centered on the Mayer wave frequency: 0.1 Hz. The border between them is a compromise: low frequency modulation of the respiration will fall into LF (or lower) anyway.
1. What is respiratory frequency in dogs of the breed you use?
2. What is the Mayer wave frequency? In rats it is 0.4 Hz instead of 0.1 Hz in humans.
Once I've heard that in dogs it is approximately the same as in humans.
In order to use it safely you would need a good reference for that; unfortunately I don't have any, but concerning the human frequency band definition: caveat emptor.
Cheers
Teodor
Article Short-term heart rate variability (HRV) in healthy dogs
Dear Theodor,
We analyse beagle dogs and we orient ourselves on the paper titled:
Power spectral analysis of heart rate variability in cynomolgus monkeys
in safety pharmacology studies: Comparative study with beagle dogs
I know the issue of RSA and the question would be whether to exclude that and consider that as an Arrythmia or not.
Cheers,
Lg.
RSA is physiological in dogs, so excluding it would probably result in the loss of a large percentage of your data.
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