Actiheart User Manual 5.1.31 (Jun 2022)
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3 Activity and Heart Rate
3.1 IBI Monitoring
3.1.1 Overview
The IBI Monitoring recording mode is designed for recording for up to two weeks,
recording the timing of every single heartbeat and three-axis acceleration
waveforms for that time. This recording mode allows for detailed heart rate
variability (HRV) analysis.
1
Heart rate and activity counts are also computed and
displayed for the whole length of the recording during analysis.
Recordings made using an Actiheart 5 in IBI Monitoring mode can also be used
in the “Long Term” analysis function, and displayed in the “Full Waveform”
analysis, albeit with only partial ECG information. They can furthermore be used
in any of the Energy Expenditure monitoring functions.
Selecting the “IBI Monitoring” function in the main menu brings up the following
window:
3.1.2 Setting Up an
IBI Monitoring
Recording
An IBI Monitoring recording is set up in the same way as a Signal Test recording
by clicking on the Setup button then following the set-up wizard. For further
details please see the Guide to Getting Started.
3.1.3 Delayed Start
for IBI Monitoring
Recording
Delayed Start allows the user time to set up an Actiheart or several Actihearts
and for them to start recording at a time in the future. This can be useful, for
example, when setting up a group of subjects together. The maximum start delay
is 72 hours. The Actiheart will not begin recording until the start time is reached.
All times are taken from the clock on the host PC.
1
The term HRV is a generic term used in this manual to indicate the variability of the
cardiac Interbeat Interval. The number of intervals available for analysis and the measure
of variability used varies according to the application.
