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Published by Dan Nash and Owain Zerilli
This podcast is all about getting sport science research out into the public domain. We cover what we do and don't know regarding all topics related to endurance running performance and, more importantly, how can we use this information to make ourselves healthier and faster runners! Your hosts are Dr Dan Osborn-Nash, 2:12 marathon runner and sport physiologist for Welsh Athletics and Welsh Triathlon, and Owain Zerilli, MSc student exploring the effects of heat on EPO release and 2:38 marathon runner
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Following the recent episode about body weight, Dan & Owain interview Dr James Fleming about body composition and the work of an applied practitioner in the nutrition space. James is a lecturer at St Mary's University, with experience in nutrition and body composition. He's also hosting an Adolescent Athlete Conference in June 2027. Drop him an email if you're interested in attending (james.fleming@stmarys.ac.uk ) Thanks for the support! Research mentioned: Fuel for the Work Required: A Theoretical Framework for Carbohydrate Periodization and the Glycogen Threshold Hypothesis - PMC Short Severe Energy Restriction with Refueling Reduces Body Mass without Altering Training-Associated Performance Improvement - PMC 2023 International Olympic Committee’s (IOC) consensus statement on Relative Energy Deficiency in Sport (REDs) | British Journal of Sports Medicine Review of the scientific rationale, development and validation of the International Olympic Committee Relative Energy Deficiency in Sport Clinical Assessment Tool: V.2 (IOC REDs CAT2)—by a subgroup of the IOC consensus on REDs | British Journal of Sports Medicine The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check out our giveaway here! Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain take a deep dive into New Zealand blackcurrants and anthocyanins, specifically looking at their possible benefit in the heat. They also critically discuss applying research in the supplement space, and the evidence that exists for blackcurrants and other supplements on the market. Blackcurrants Meta Analysis NZBCs and heat shock proteins NZBCs and the Marathon des Sables The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check out our giveaway here! Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
In the last few years, lab testing has exploded as an industry - expanding beyond a few universities offering tests in their laboratory. Unfortunately not all tests are equal, and having seen more bad tests, Dan & Owain talk through what you should be looking for from a lab test. Send us in your tests and we might do an episode talking through some of the bad ones soon! The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check out our giveaway here! Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain answer more of your questions! Peptides, thresholds, best running experiences and female research all feature heavily in our summer Q&A! The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check out our giveaway here! Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
In case you missed it, Dan & his wife Jemima welcomed Betsi into the world last week - and we've taken a week off of recording. This week's episode is a compilation of some of the best content on our patreon from the last 8 months; paper breakdowns, training talk (road to Valencia continued), interviews, road to London, and more behind the scenes content. Hope you enjoy - and we'll be back next week! The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check out our giveaway here! Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain get their prediction hats on, and discuss where they think the future of sport science is heading. Along with some fun suggestions, they discuss training, nutrition & technology, and what they think might be different (or stay the same) in 5 years time. What do you think we might be doing in 2031? The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check out our giveaway here! Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain dive into a taboo area of endurance sports, one that has returned as a discussion point following Josh Kerr's mile world record - weight. Tackling the subject through the lens of a fantastic case study by Trent Stellingwerff, they discuss the importance of weight and body composition, and share some thoughts about when you might want to think about this yourself. Thanks for the support as always! Josh Kerr article Trent Stellingwerff case study Eating disorder systematic review The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check out our giveaway here! Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
The endurance sport world is buzzing with discussion about lactate gels. From powering Yomif Kejelcha to a 1:59 marathon (maybe), and Tadej Pogacar to another Tour de France victory, lots of people are talking about these gels - so Dan & Owain talk through what we know... so far! Lots more to come with this topic! The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check them out here - https://www.soarrunning.com/ Click here for details on their latest women's project: SOAR Women:Projects Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan and Owain finally discuss altitude on the podcast! They're joined by James Barber, Lead Performance Specialist at The Altitude Centre and a PhD candidate at Anglia Ruskin University. James chats through the environmental challenges at altitude, the changes in physiology, and how to utilise those to improve performance! James' Survey Repeated Sprint Paper The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check them out here - https://www.soarrunning.com/ Click here for details on their latest women's project: SOAR Women:Projects Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain chat to the founder of Tymewear, Arnar Larusson. Tymewear is a heart rate monitor with a built in ventilation measurement device, that offers ventilatory data - a measure seen in the lab but not readily available in the field! Arnar talks about the creation of the device, and going from an idea to the device being used at the Tour de France by Team Visma Lease-a-Bike! Check out Tymewear here! The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check them out here - https://www.soarrunning.com/ Click here for details on their latest women's project: SOAR Women:Projects Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain chat to former professional cyclist Marinus Petersen. Marinus raced competitively in France, after studying sport science at Loughborough University. He's recently transitioned to triathlon, and has done so with an inquisitive and open mind to trying different training ideas in running. He is also the lead coach at Kilowatt Coaching . We chat to him about this process and how to be more open to experimentation and inspiration from other sports. The Physiology of Endurance Running Podcast is proudly sponsored by SOAR, producers of the world's best running apparel. Check them out here - https://www.soarrunning.com/ Click here for details on their latest women's project: SOAR Women:Projects Follow this link to find out more about CurraNZ, the New Zealand blackcurrant supplement. Listeners can use the code "Physiology15" for a 15% discount on their site . You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain talk through Taurine - well known to anyone that drinks Red Bull or Monster, but a supplement that may improve your performance in the heat! Is there a good evidence base? Or are things a bit unknown? Have you tried Taurine yourself? Taurine Supplementation and Human Heat Tolerance: Mechanisms, Evidence, and Integration with Heat Acclimation, Cooling, and Hydration Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat The effect of 8-day oral taurine supplementation on thermoregulation during low-intensity exercise at fixed heat production in hot conditions of incremental humidity Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Following the launch of a Claude and Strava integration, Dan & Owain put their livelihoods on the line and test the protocol! A range of questions was put to Claude to interrogate their data, with varying results! Check back in in 12-months and we will see if AI has made us redundant! The AI audit paper discussed Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain are joined by a leading voice on HRV, Marco Altini. Marco has worked on HRV, both the physiology behind the measure and applying the data in day to day life for many years. He talks to us about what HRV is, how to properly measure and apply HRV data, and the state of wearable tech in 2026. Marco's book can be found here! Marco's Substack Soar Solstice The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers of the world's best running apparel, designed to fit the needs of runners that put time and effort into the sport. Check out their awesome kit: https://www.soarrunning.com/ Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain talk through a recent paper that's hit the mainstream - suggesting that tilting your bed may increase haemoglobin mass. It's a catchy premise, but they talk through how to actually read and apply a study like this into your training and life! The paper! Soar Solstice The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers of the world's best running apparel, designed to fit the needs of runners that put time and effort into the sport. Check out their awesome kit: https://www.soarrunning.com/ Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain talk about heat acclimation now that we've reached summer in the Northern Hemisphere! Different from haematological adaptations, the guys talk through some of the foundational research and how they'd acclimate for a hot race! The main paper discussed Soar Solstice The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers of the world's best running apparel, designed to fit the needs of runners that put time and effort into the sport. Check out their awesome kit: https://www.soarrunning.com/ Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain talk about an often misunderstood, or overstated area of endurance physiology - anaerobic capacity. A number of energy systems play a part in endurance performance, but their importance change depending on the duration of exercise! The main paper discussed Check out our Soar Giveaway here! The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers of the worlds best running apparel, designed to fit the needs of runners that put time and effort into the sport. Check out their awesome kit: https://www.soarrunning.com/ Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain are back to discuss the Critical Speed model. The model is often used in sport science research, as another method of quantifying the steady state and non-steady state boundary, but utilising performance trials or race data rather than metabolic measurements. More to come on this topic in the next few months! A very good paper about Critical Speed Check out our Soar Giveaway here! The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers of the worlds best running apparel, designed to fit the needs of runners that put time and effort into the sport. Check out their awesome kit: https://www.soarrunning.com/ Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Dan & Owain are back with a discussion about how to inject some speed into your marathon legs over the summer! Lots of runners spend the summer trying to run a fast 5k off the back of a spring marathon - and Dan & Owain discuss an evidence-lead approach to this, with a few scenarios in mind! Hopefully this offers some good insight and ideas for your summer, if you're targeting shorter events! Check out our Soar Giveaway here! The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers of the worlds best running apparel, designed to fit the needs of runners that put time and effort into the sport. Check out their awesome kit: https://www.soarrunning.com/ Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
Following a busy spring of marathon's - for Dan at least - and to celebrate crossing into triple digits, we've recorded a Q&A! Lots of topics covered in this one, and we'll do another soon! Check out our Soar Giveaway here! The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers of the worlds best running apparel, designed to fit the needs of runners that put time and effort into the sport. Check out their awesome kit: https://www.soarrunning.com/ Check out our Patreon, with exclusive bonus content here: https://www.patreon.com/cw/TheEnduranceCollective You can submit questions for this series or our Q and A episode here: https://forms.gle/XGmxsR6dsanikRSX7
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Observed September 20, 2026.
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