The heart rate
variability analysis (HRV) test utilises the Nerve-Express system which
depicts a visual representation of heart rhythm called rhythmography. Rhythmography can graph
the relationship between the sympathetic nervous system (SNS) and
parasympathetic nervous system (PNS).
This reflects the body's
regulating process and can help determine one's overall degree of physical
fitness, and current psychological and emotional states.
The key advantage is the
method's ability to detect early signs of the development of pathological
processes or the presence of some functional disorder which may not be
revealed by an ordinary physical examination.
data for evaluation is gathered through computer monitoring of the R-R
intervals using a chest strap sensor applied to the subject's body (Figure
5). First the patient lies down (supine position) for several minutes. Then,
after a computer-generated signal (beep), the subject stands up and remains
To get the necessary
information for evaluation is very simple. The Nerve-Express system notes
the differences between the resting and active heart rhythms of the patient.
To do this the patient
wears a chest strap with a sensor which is connected to a computer system.
This sensor gathers information about the heart rhythms.
First the patient lies
down for several minutes. Then, when the “resting” information is gathered
the computer will beep . At this point the patient stands up and remains
standing (upright position) until the computer beeps again—registering that
the “active” information has been gathered.
takes about 7-10 minutes and the results can be viewed immediately either on
screen or as a print out. Your practitioner will then be able to analyse
and explain these results