The Physiology of Endurance Running Podcast

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 t...

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 su...

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: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠h...

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 En...

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 wor...

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&...

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 t...

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...

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 even...

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 runne...

Following a big spring of racing, Dan, Jen & Owain are back to break down their training, and how they apply some of the podcast topics to their own running! Dan talks us through training and racing 3 marathons in 30 weeks. Jen discusses what stayed the same, and what changed between Valencia and Rotterdam. Owain breaks down the change from flat road racing to technical trails! ⁠ Check out our...

Dan & Owain round off the marathon series, with a discussion about the stress and strain your body has just been put through over the course of 26.2 miles! There's a lot to recover from post-marathon, some of which is obvious, and some of which is a lot more nuanced and less understood. They then talk about their approaches to returning to run after a marathon, or other big races! The Physiolo...

Dan & Owain talk through the final 48 hours before a marathon. There's lots of ways to jeopardise your race, and undo the training you've done in the weeks before. A real mix of science and practical application in this episode as they talk through lived experiences and research based approaches to the days before a marathon! The Physiology of Endurance Running podcast is proudly sponsored by...

Dan & Owain talk through race planning. You've put in the hours and days of hard training, through the cold and wet weather... How do you convert that into a race performance that you're happy with? Pacing, watch setup, fuelling, and conditions are all considered before standing on the start line! The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers...

Dan & Owain talk through the multifaceted impact of fatigue on a marathon, how it manifests and some overviews on strategies to delay it! A global view episode to set up some more marathon-specific topics as we race through spring marathon season! The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR are the producers of the worlds best running apparel, designed to fit...

Dan & Owain are joined by a runner that doesn't need much of an introduction! Callum Hawkins; 2:08:14 marathon pre- supershoes. 60:00 half. 4th in the World Championships marathon twice (2017 & 2019).  Callum talks us through his career so far; the early start in the marathon, his approach to major races, his racing style and the benefits and drawbacks it brings. He also talks about sh...

Dan & Owain are joined this week by David Chalfen. David currently coaches at Highgate Harriers - one of the most successful clubs in the UK - as well as coaching individuals online and in-person. He's been involved in the sport since the 1980s; as an athlete, coach and working in sport administration. David talks to us about how the landscape of the sport and coaching has changed across h...

Dan & Owain talk about the science of trail and ultra running with Dr Simon de Waal. Simon has recently published a number of papers around the reliability and validity of using lab testing with trail and ultra runners - and talks through why there's a need to devise different testing protocols for these athletes. Simon is a Senior Lecturer at the University of Gloucestershire, and undertook h...

Dan & Owain are back to talk session design. We had a few questions throughout the intensity domain series about actually implementing the training in practice - so we thought we'd talk through how to plan a training week, and the considerations for training sessions in each intensity domain! Let us know what you think - this episode came about because of comments and questions so we'r...

Dan & Owain are back for the another installment of the intensity domains series. They talk through how to take intensity domains, and apply training zones that support and quantify your training! 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...

Dan, Jen & Owain talk through Dan's Seville Marathon - and how exactly Dan went from a week off with an injury, to a 2:11:50 PB! His plans for the next few months are also discussed - some exciting news about this! 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 pu...

Meteopace has taken the running world by storm (pun intended) since being launched in 2025, and we're extremely excited to be joined by Phil (aka Meteopace Phil), the founder of the app. We dive down some serious rabbit holes about the inner workings of Meteopace - there's an incredible amount behind the scenes driving the app! The Physiology of Endurance Running podcast is proudly sponsored by SO...

Dan & Owain finish off the intensity domain series with the extreme domain. An intensity domain rarely touched by endurance runners, but still an important intensity to touch - at times! We'll finish off the series with a discussion about mapping training zones to intensity domains! The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR produce high quality running clot...

Dan & Owain are back to talk intensity domains - on this episode they dive into the severe domain. Beyond the second threshold things become unstable, fast. Severe intensity exercise isn't possible for long, but some people spend more time in this domain than others! The Physiology of Endurance Running podcast is proudly sponsored by SOAR. SOAR produce high quality running clothing, design...

Dan & Owain return with the next installment of the training zone series, talking all things Zone 3, or alternatively the Heavy Domain. What some people call "threshold" - this zone exists between two clear physiological anchor points, but still has a lot of confusion surrounding what happens in this zone, and how to undertake training here. The Physiology of Endurance Running podcast is proud...