Heart Rate Variability: Clinical Use & Factors that Influence HRV (Part 2/5)

This talk is Part 2 of an in-depth series on Heart Rate Variability offered for free by Labfront's Chief Medical/Science Officer Dr. Andrew Ahn. If you missed Part 1, you can find it on Labfront Academy: www.labfront.c...
In this session, Dr. Ahn:
1- Reviews the evidence for HRV in clinical trials and epidemiological studies
2- Briefly discuss non-linear measures for HRV
3- Discuss the challenges in utilizing HRV for assessing health conditions
Timestamps:
3:45 - 5:37 Intro
5:37 - 10:21 Part 1 Review
10:21 - 15:37 Context: Age of Cardiology
15:37 - 16:06 Talk Outline
16:06 - 25:32 Sudden Cardiac Death and Autonomic NS
25:32 - 33:05 ANS Testing Options: Direct Assessments
33:05 - 43:51 ANS Testing Options: Indirect
43:51 - 45:40 Q&A I
45:40 - 54:40 Early HRV Trials
54:40 - 1:00:45 Effect of Early Revascularization
1:00:45 - 1:02:50 Diabetic Autonomic Neuropathy
1:02:50 - 1:06:19 Personal Interpretation
1:06:19 - 1-17:27 Q&A II
1:17:27 - 1:22:36 Lack of HRV in Clinical Medicine
1:22:36 - 1:35:22 Factors Affecting HRV
1:35:22 - 1:37:40 Recommendations for Controlling Confounders
1:37:40 - 1:38:27 Session Recap
1:38:28 - 1:43:15 Q&A III
WATCH PART 3 HERE: www.labfront.c...
Dr. Ahn is an internal medicine physician with a background in physics/engineering and physiological signal analyses. He is an Assistant Professor in Medicine & Radiology at Harvard Medical School and is also the Chief Medical/Science Officer at Labfront.
You can follow Dr. Ahn on Twitter @AndrewCAhn2
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Visit Labfront's blog to check out research case studies, browse validation research, learn best practices, and stay up to date about grant opportunities: www.labfront.c...
Head to Labfront Academy for educational resources to learn more and achieve more in the digital health ecosystem, including an entire HRV collection: www.labfront.c...
Review Labfront's suite of data analytics tools that help researchers get insights without the need for coding (including HRV reports): www.labfront.c...

[@physioq7590]

Part 3 is available now! ua-cam.com/video/FVmBm6sc-h0/v-deo.html

[@dr.jeffburnuoftoronto2916]

Fantastic series, thank you PhysioQ and Dr. Ahn for providing this content and making it openly accessible. I've watched most of the HRV videos on youtube, and this series is by far the best content out there. Most videos out there approach HRV from a fitness/performance perspective, but none have provided enough details/evidence (or the clinical chops) to fully trust. I'll be adding this HRV series to our postgrad curriculum resources here at U of Toronto. Thanks!

[@andrewcahn9030]

Thank you Dr. Burn for the kind feedback! Wish you best of luck on your curriculum at U of T.

[@tinawu7083]

Fantastic series! Looking forward to part 3!

[@225rip]

Is it possible to go towards flight or fight mode such as anxiety without an increase of heart rate? I think my anxiety may be missed due to low heart rate.

[@williamstevenson2649]

Thanks to all- I have gained a much better appreciation of what it's all about (although I am presently only concerned with fitness not illness)

[@physioq7590]

We're glad to hear it!

[@swathigavaishnaved9208]

could you please explain me, HRV changes between fatigue state and alert state.

[@225rip]

Could you please comment on early signs of covid on daily HRV readings. I am under the understanding, that the parasympathetic will greatly increase days before you may notice your condition.

[@physioq7590]

Great question. Considering how new and dynamic the virus is, I believe studies in this area are still quite preliminary. Here is one with results that state, "Higher HRV predicts greater chances of survival...Low HRV predicts ICU indication and admission in the first week after hospitalization." journals.plos.org/plosone/article?id=10.1371/journal.pone.0258841

[@225rip]

Thanks for the information, while it is difficult to get hard data form it; such as what is a good SDNN for a 70 years old for survival? Would a Polar 10 strap and Elite app be sufficient to get reliable data? And what are the early signs of covid that HRV can detect before someone feels the symptoms, would para or sympathetic values go up or down?