MW8 & MotionWare User Guide: Issue 1.2.1
Page 46
9 Nap Analysis
9.1 Overview
The Nap analysis function allows detection of periods of
inactivity that could be attributed to daytime napping or
micro-sleeps. The function provides user adjustable
parameters for duration and threshold to detect the
potential naps.
9.2 Select Data for
Analysis
From the MotionWise window, use the ‘select any’ option
to a period of data to analyze
– this will typically be during
the normal active daytime period. The analysis window will
open automatically; if not already selected, select
‘Napping’ from the analysis functions side bar. A screen
similar to that shown below will be displayed.
9.3 Select Nap
Activity
Threshold
The ‘Napping activity level (/epoch)’ is used to set the
activity threshold for nap detection. The activity level in
every epoch within the specified period must be less than
or equal to the entered value for the period to be scored as
a nap. For example, if the threshold is set to 10, the period
will be scored as a nap if every epoch <=10 counts.
Change the threshold value by typing the number of
counts.
9.4 Select Min Nap
Length
Set the minimum period of inactivity required to be scored
as a nap. The value should be typed in the format
hh:mm:ss. Periods shorter than the selected value will not
be scored as a nap period.
