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BCIA Continuing Education Posts
The BioSource Faculty Explain Peer-Reviewed Science


A Comprehensive Guide to HRV Myths
This review addresses 14 misconceptions regarding cardiovascular health, HRV measurement, and HRV biofeedback training.
BioSource Faculty
Aug 7, 202423 min read
284 views
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HRV Myths: You Should Trust Smartphone HRV App Values
HRV time- and frequency-domain values obtained from smartphone apps may be invalid due to their failure to control artifacts. Cautiously...
BioSource Faculty
Feb 11, 20241 min read
73 views
2 comments


Rethinking the Resonance Frequency (RF) - Part 2: Slow-Paced Breathing
Resonance frequency (RF) assessment identifies the stimulation frequency producing the greatest amplitude heart rate oscillations in one...
BioSource Faculty
Dec 3, 202212 min read
610 views
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Rethinking the Resonance Frequency (RF) - Part 1: Understanding Resonance
Randomized controlled trials have demonstrated the efficacy of HRV biofeedback for diverse clinical disorders like depression, diabetes,...
BioSource Faculty
Nov 23, 20229 min read
650 views
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HRV Time-Domain Measurements for Smart People
HRV Time-Domain Measurements for Smart People describes these measurements, caveats, and practical applications.
BioSource Faculty
Oct 22, 202213 min read
460 views
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How Do You Know When HRV Training is Succeeding?
During slow-paced breathing between 4.6 to 6.5 bpm, you can examine your client's raw heart rate (HR) and respiration waveforms,...
Fred Shaffer
Aug 1, 20222 min read
59 views
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Slow-Paced Contraction Increases HRV
Slow-paced contraction to increase heart rate variability
Fred Shaffer
Jul 31, 20226 min read
527 views
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