Actiheart User Manual 5.1.31 (Jun 2022)
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Default Parameter
Values for the
Branched Model.
The values below have been validated for walking and running and are believed
to be reasonably valid for free living conditions. Formal validation of the values
for the latter conditions is in progress. Therefore the values below are subject to
minor changes as the branched model evolves and is validated for other
activities.
1.
Flex HRaS
Flex HRaS is defined as the average above sleep of the highest HR
during rest and the lowest HR during incremental exercise during the
treadmill test. In (5) RHRaS at is 10 BPM and the HRaS at 3.2 kph is 36
BPM. Thus the Flex HR is set to 23.6bpm.
2.
Transition HRaS
This is the average between the highest walking and slowest jogging
HRaS. See (5) i.e. 80.4 BPM.
3.
X value
Since cycling intensity is best quantified by HR (when using
walking/running calibration equations), the value of X is chosen so that
observations end up in one of the two top boxes (1 or 2). So a value of X
has been chosen which is exceeded in cycling but at the same time is
high enough to ensure that “no movement” (including noise) will be
quantified by the two lower boxes (P3 or P4).
4.
Y value
This is set to TransHRaS
5.
Z value
A value equal to FlexHRaS has been chosen as a starting point. However
Z is independent of FlexHRaS need not be equal to FlexHRaS.
a.
P1 value
0.9
b.
P2 value
0.5
c.
P3 value
0.5
d.
P4 value.
0.1
