heart rate variability logger - quick start guide
TRANSCRIPT
Heart Rate Variability Logger
@marco_alt
V4.2 Quick Start Guide
• Extracts, plots, stores and exports heart rate, rr-intervals, time and frequency domain heart rate variability features (AVNN, SDNN, rMSSD, pNN50, LF, HF, LF/HF)
• Configurable experience sampling for events annotation
• Comparison between recordings lets you get a better understanding of autonomic regulation and sympathetic/parasympathetic activity under different contexts in a glance
• Step counter or accelerometer derived motion intensity for user context (step counter only for iPhones 5S)
• Configurable time window for features computation (choose between 30 seconds, 1, 2 or 5 minutes)
• Location tracking (GSM/WiFI or GPS based)• RR-intervals correction can be enabled to
prevent ectopic beats or artifacts from affecting HRV features
• Data export using iTunes or Dropbox • Tested for recordings longer than 24 hours
Configure your preferred time
window, features will be
computed accordingly
Select RR-interval
correction parameters to
remove artifacts due to motion or
ectopic beats
Link to Dropbox or use iTunes to download your
data
You can also add some
randomness to avoid receiving
events at constant time
intervals, in this case enable 'add randomness' as well. There will
be a shift in time of
maximum 5% more or 5% less
than the time specified as
'time interval’
By enabling experience sampling,
events will be automatically triggered at configurable
time intervals
Additional context can be
acquired enabling location
tracking. GSM and WiFi
networks will be used if high
accuracy location is disabled,
otherwise the app will use
GPS and therefore drain more battery power, but
provide more accurate and
frequent location updates.
Activity tracking can be used to add context to
your recordings (motion
intensity for iphons prior to
the 5S, and step counter for the
5S)
connectConnect to your
Bluetooth SMART Heart Rate Monitor
record
heart rateHRV Logger will start receiving
your Heart Rate
Next, start a recording
log event
stop
During the recording, you
can log relevant events
Event annotations
The real-time view shows the HR and RR data received
from the sensor, as well as the
computed features
RR-intervals can be
corrected automatically for artifacts and ectopic
beats
Features are computed at user-defined windows (30 seconds to 5
minutes)
HRV Features:- AVNN- SDNN- rMSSD- pNN50
- LF- HF
- LF/HF
Accelerometer Features:- Motion
intensity
On top of HRV features, the
accelerometer is used to determine
motion intensity and
give an indication of
the user activity
Iphones 5S will display actual steps taken
Steps
Browse your history of
recordings
Export your data
Select export modality
Filter data based on
configurable thresholds
Select up to three
recordings to compare
Recordings comparisons
get a better understanding of autonomic
regulation and sympathetic/parasympathetic activity under
different contexts in a
glance
Data format• Four csv files• HR every second as received from the
sensor• RR-intervals after correction• Events annotated + event type and text• Features (AVNN, SDNN, rMSSD, pNN50, LF,
HF, LF/HF, steps, latitude, longitude)
Features example:
Questions?
@marco_alt
See link below