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4.14.6.Exporting Heart Rate Data
In order to make a comprehensive analysis of heart rate data possible, recorded heart rate
data is written to a file. The exported file can be evaluated with various PC programs. For
now the file will only be created if you use a Zephyr
™
HRM/HxM heart rate monitor, because
this is the only compatible HRM that supplies NN interval data.
The export file can be found in the individual training folder on your device and is name “hr-
data.dat”. The file is automatically written as soon as your push the stop button to stop a
training recording. The text file contains the heart beat timestamp (milliseconds) in the first
column of the file. The second column contains the duration of the NN interval (milliseconds).
Example:
63930 779
64674 744
65429 755
66189 760
Hint : If you face problems importing the “hr-data.dat” file, it might help to remove lines that
contain zero values or to remove the entire left column. On GPS-Sport.net there is a simple
tool to do this job. It can be accessed through “My GPS-Sport > Extras > Simplify R-R Data
File” (logged in users only).
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