DFA alpha-1: A non-invasive, cheap option for estimating the aerobic threshold with Bruce Rogers, MD | EP#329

That Triathlon Show

Mikael Eriksson

Health, Swimming, Endurancesports, Run, Cycling, Health & Fitness, Fitness, Ironman, Swim, Bike, Sports, Running, Sportscience, Triathlon

4.9 • 596 Ratings

🗓️ 14 March 2022

⏱️ 64 minutes

🔗️ Recording | iTunes | RSS

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Summary

Bruce Rogers, MD, is one of the researchers behind the research on using the non-linear HRV-based marker DFA alpha-1 (which can be be measured non-invasively and for free or very cheaply) to assess the aerobic threshold. We discuss this research and its applications in this interview. IN THIS EPISODE YOU'LL LEARN ABOUT: -What is DFA alpha-1, and how can you measure it? -The current evidence behind using DFA alpha-1 as a marker for the aerobic threshold (LT1/VT1) -Testing protocols, and hardware and software requirements for testing -Limitations and challenges, including devices, artifacts, and training modality -How to incorporate DFA alpha-1 testing in your training -Other potential applications of DFA alpha-1, including assessing fatigue and durability SHOWNOTES: https://scientifictriathlon.com/tts329/ SCIENTIFIC TRIATHLON AND THAT TRIATHLON SHOW WEBPAGE: www.scientifictriathlon.com/podcast/ SPONSORS: Precision Fuel & Hydration - Optimise and individualise your fueling and hydration strategy using the free online Sweat Test and Quick Carb Calculator on precisionfuelandhydration.com. Book a free one-on-one consultation to chat with the team and refine your fueling and hydration even further. Listeners of That Triathlon Show get 15% off their first order of fueling and hydration products. If you didn't catch the discount code in the episode, email Andy and the team at hello@precicionhydration.com and they will be happy to help. ROKA - Exceptional quality triathlon wetsuits, trisuits, swimskins, goggles, performance sunglasses as well as prescription eyeglasses and sunglasses. Online vision test for prescription updates and home try-on options available for eyeglasses. Ships from the US, UK and EU. Trusted by world-leading athletes such as Lucy Charles-Barclay, Javier Gómez Noya, Flora Duffy, Morgan Pearson, Summer Rappaport and others in triathlon, cycling, speed skating, and many more. Visit roka.com/tts for 20% off your order. LINKS AND RESOURCES: Bruce profiles on Twitter and Research Gate A New Detection Method Defining the Aerobic Threshold for Endurance Exercise and Training Prescription Based on Fractal Correlation Properties of Heart Rate Variability - Rogers et al. 2021 An Index of Non-Linear HRV as a Proxy of the Aerobic Threshold Based on Blood Lactate Concentration in Elite Triathletes - Rogers et al. 2022 Detection of the Anaerobic Threshold in Endurance Sports: Validation of a New Method Using Correlation Properties of Heart Rate Variability - Rogers et al. 2021 Influence of Artefact Correction and Recording Device Type on the Practical Application of a Non-Linear Heart Rate Variability Biomarker for Aerobic Threshold Determination - Rogers et al. 2021 Fractal correlation properties of heart rate variability as a biomarker of endurance exercise fatigue in ultramarathon runners - Rogers et al. 2021 Correlation Properties of Heart Rate Variability during a Marathon Race in Recreational Runners: Potential Biomarker of Complex Regulation during Endurance Exercise - Rogers et al. 2021 Heart Rate Variability – New perspectives and insights with Marco Altini, PhD | EP#325 RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/ CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Transcript

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0:00.0	The Triathlon Show, 329.
0:05.0	Hey, what's up, everybody, and welcome back to another episode of that triathlon show, the podcast presented by scientific triathlon.com.
0:26.5	I'm our host Michael, and on today's episode, I interview Dr. Bruce Rogers.
0:30.7	Bruce has done a lot of research on assessing the aerobic threshold or first lactate or rental threshold, whatever you want to call it,
0:38.2	by using the HRV-based marker DFA Alpha-1, which can be measured non-invasively and for free or
0:45.4	very cheaply. And so this is an exciting potential method for assessing that first threshold,
0:51.8	which can be important to inform training decisions and
0:55.1	for training monitoring. So we will discuss this research and the applications of it in the
1:00.5	interview with Bruce. But before that, big thanks to our sponsors, precision fuel and hydration.
1:05.6	Precision fuel and hydration have a range of tools and products to help you personalize
1:09.1	your fueling and hydration strategy so that you can perform at your best. Everyone sweats differently both in terms of
1:14.6	sweat rate and sweat sodium concentration. So hydration strategies should be individualized.
1:19.9	And fueling strategies will also need to be adapted based primarily on the duration and
1:24.3	intensity of exercise or competition, as well as on the athlete's ability
1:27.9	to tolerate certain amounts and types of fuel.
1:30.9	You can use the free online sweat test and quick carb calculator on precision fuel and hydration.com
1:35.5	to understand your fluid, electrolyte and carbohydrate needs during training and racing.
1:40.2	You can also book a free one-on-one video consultation with the team to refine your strategy.
1:45.5	As a listener of the podcast, you can get 15% off your first order of fueling and hydration products by using the code TTS-22 at checkout on precision fuel and hydration.com.
1:56.4	And thank you to Roka.
1:57.7	Roka produced exceptional quality tri-falon wetsuits, trisuits, swoonskins, goggles, performers sunglasses, as well as prescription eyeglasses and sunglasses. Thank you to Roka. Roka produced exceptional quality tri-aflin wetsuits, trisuits, sunskins, goggles,
2:01.3	performance sunglasses, as well as prescription eyeglasses and sunglasses. Today I want to highlight
	...

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