Actiheart User Manual 5.1.31 (Jun 2022)
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of options. The meaning of options are described below:
Adult ... (old):
This describes models created from an earlier group calibration
than the JAP2007 group above. These models are provided for backwards
compatibility, but not recommended for new studies.
Group Act
vs
Ind Act:
Most models are provided with an activity calibration
based on group measurements. It is also possible to enter a table of individual
Activity to EE values from measurements, though it is difficult to do so accurately
across a range of activities. The "Ind Act" models will use the provided table of
Activity to EE values for each user. Note that the branched model will favour EE
estimates based on HR for higher intensity, so this table will mostly affect lower
intensity results.
Group HR
vs
Step HR
vs
Ind HR:
The relationship between heart rate and EE
can be provided from a group calibration, or from the saved results of a step test
for each user, or from a user-provided table of HR to EE measurements for each
user. Models with each of these in the name will use the relevant source for
relating heart rate to energy expenditure.
Child:
Models beginning with "Child" are using a group calibration from
measurements made to a group of children, and so are likely to be more
accurate when used on children than the Adult group measurements.
Child/Adult:
Some models do not use a group calibration, so have no inherent
bias to adults or children. All of the calibration information must be provided
individually for these.
+stress:
Some occupations may be particularly prone to raising heart rate
without associated physical activity, and hence associated energy expenditure.
The "+stress" models will attempt to detect this and minimise the errors. The
correction cannot be applied perfectly so it is recommended for simplicity that the
model is not used unless there is believed to be a particular problem with stress
in the group targeted.
In order to view the available models stored in the Settings database, click on the
“Branched Model Parameters...” button within the “Energy Model” box, the
following window will be displayed:
