User’s Manual – ambiotex
ambiotex GmbH
Page 13 of 15
The following table gives you a survey of the parameters and their meaning
Parameter
Meaning
ØRR
Average heart rate over the whole measuring period of 5:35 min.
SDRR
Also called SDNN, standard deviation of the RR-intervals. The parameter
represents the sympathetic and parasympathetic total activation over a
measuring period of approx. 5 min.
RMSSD
The RMSSD (Root-Mean-Square of successive Differences) is currently the
most popular and proven measure of the parasympathetic heart regulation.
TP
The TP (total power) parameter also represents the total status of the
autonomic nervous system and highly correlates with the SDNN.
VLF
Very Low Frequency, is influenced by thermoregulatory and vasomotor
processes.
LF
Low Frequency mainly describes the sympathetic influence on the heart
rhythm regulation.
HF
High Frequency describes the parasympathetic influence on the regulation of
the heart rhythm.
LF/HF
The LF/HF-ratio describes the sympathovagal balance of the autonomic
nervous system and reveals shifts in the balance between the sympathetic
and parasympathetic nervous system. .
Ln(LF/HF)
The natural logarithm of the previous LF/HF quotient.
AR-Index
Autonomic regulation index, i.e. health index of the autonomic nervous
system. Developed by the ZNF research group.
