The Endurance Lab
A science-driven podcast for midlife runners, featuring interviews with elite athletes and researchers to optimize performance and longevity.
This is an interview show dedicated to the science and practice of endurance sports for athletes over 40. Host Jusman So talks with leading exercise physiologists, nutrition scientists, and elite masters athletes to deconstruct performance. The conversations are deeply rooted in scientific literature and data, often challenging popular trends in favor of evidence-based protocols for fueling, training, and recovery.
“Its tight focus on the 'midlife' athlete is its key differentiator. Unlike broader running podcasts, it directly addresses the physiological and lifestyle realities of aging, while maintaining a rigorous, scientific standard for its advice and guest expertise.”
Who hosts this show
The host, Jusman So, is an RRCA certified Distance Running Coach who began his own serious running journey at age 45. After running his first marathon in 4:13, he achieved a Boston Qualifying time of 3:05 by age 47, and has also completed 100K and 100-mile ultramarathons. The podcast was launched in 2026 to share evidence-based insights on training, nutrition, and performance with other runners in their 40s, 50s, and beyond.
Credentials & credits
- RRCA certified Distance Running Coach
Other ventures
- The Endurance Lab Coaching & Training Plans
What kind of podcast
- Country
- FI
- Region
- europe
When new episodes drop
- 01Sports Physiologist: STOP Wasting YOUR Money On These Supplements | Patrick WilsonJun 26, 2026 · 1h 15m
- 02Deena Kastor's Advice To All Runners Over 40Jun 12, 2026 · 1h 01m
- 03
- 04Tim Noakes: I Was Wrong About Carbs! 120g/hr Breaks World RecordsMay 22, 2026 · 1h 11m
- 05Run Your Fastest Marathon After 45, Even If You Started Late | Matt FitzgeraldMay 15, 2026 · 1h 11m
- 06The Proven Way To Stay Injury Free As A Runner Over 40 | Brodie SharpeMay 8, 2026 · 1h 00m
- 07Lactate Scientist: Why MOST Runners Get Lactate Threshold WRONG | Dr Peter TranMay 1, 2026 · 1h 09m
- 08Changing My Diet BLEW UP My Endurance | UltraRunner Andrea MooreApr 25, 2026 · 54 min
Notable episodes
- 01Tim Noakes: I Was Wrong About Carbs! 120g/hr Breaks World Records
Features the world-renowned scientist candidly admitting his previous theories were wrong in the face of new evidence, offering a masterclass in scientific integrity and the evolution of sports nutrition.
- 02Deena Kastor's Advice To All Runners Over 40
Olympian Deena Kastor provides a deep, actionable framework for how mindset training directly translates to performance, especially for aging athletes dealing with comparison and identity.
- 03Sports Nutritionist: Apply The Fueling Strategy Behind 2 UTMB Wins To Your Next Race | Paul Booth
A highly practical episode that deconstructs the exact, winning fueling strategies for elite ultra-runners, providing specific, data-driven advice that counters popular high-carb trends.
- 04Sports Physiologist: STOP Wasting YOUR Money On These Supplements | Patrick Wilson
A critical look at the sports supplement industry that breaks down the evidence for what works (and what doesn't), focusing on carbohydrate dose-response, gut training, and caffeine.
What you'll be asked on this show
Jusman begins by establishing a guest's core thesis or area of expertise, often referencing their specific work. He then methodically unpacks the topic, frequently pausing to summarize complex ideas or define technical terms like 'hypoglycemia' for the audience. He probes for specifics, asking for data points (e.g., 'Was the oxidation rate about 60 grams?') and practical applications ('How were the carbs delivered during the race?'). A signature move is to frame questions around audience personas like the 'recreational masters athlete' to make advice tangible. Nearly every interview concludes with the philosophical question, 'What does endurance mean to you?'.
The host, Jusman, acts as a well-informed proxy for his audience, asking clarifying questions to make complex topics like carbohydrate oxidation rates accessible. Interviews are structured and well-researched, often using a guest's specific paper or book as a conversational launchpad. The format is typically a one-on-one remote interview presented in a split-screen video.
Questions the host keeps coming back to
12 cataloguedIf you're going on this show as a guest, expect some version of each of these. Each note explains when the host reaches for it.
personal
1- Q.01
“What does endurance mean to you?”
This is the host's signature closing question, used to elicit a personal, philosophical reflection from every guest.
advice
3- Q.01
“How should a recreational masters athlete apply this information to their strategy?”
Used frequently to translate expert knowledge into actionable advice for the show's target audience.
- Q.02
“What are the biggest mistakes people might make after hearing this conversation?”
A frequent closing question to provide practical warnings and prevent misapplication of the advice.
- Q.03
“What is your advice for an athlete struggling with the problem of comparison?”
Seeks actionable advice for a common mental hurdle faced by competitive amateur runners.
process
4- Q.01
“Can you walk me through the process or the lab testing that revealed this?”
A common opening question to ground the conversation in the guest's specific, hands-on work.
- Q.02
“To clarify for the audience, what exactly is [technical term]?”
The host often interrupts the expert to define scientific jargon and ensure the concepts are accessible.
- Q.03
“What is the upper limit of intake that has shown a performance benefit?”
Seeks to establish the dose-response curve and point of diminishing returns for fueling or supplements.
- Q.04
“If someone is consuming X grams but only oxidizing Y, where does the excess go?”
Uses specific numbers to probe the metabolic consequences of a particular fueling strategy.
craft
1- Q.01
“Is the benefit here more about stimulating the brain or actually fueling the muscle?”
Probes the underlying mechanism of a performance intervention, often exploring neurological versus physiological effects.
controversy
1- Q.01
“Is the effectiveness of [common practice] proven by science, or is it more of a placebo?”
This question challenges popular trends and marketing claims, demanding evidence for their efficacy.
origin
1- Q.01
“What motivated you to write your book or pursue this line of research?”
Explores the origin story and personal drive behind a guest's major work or career focus.
mindset
1- Q.01
“How can someone maintain their identity as a runner when dealing with an injury?”
Addresses the psychological challenges of setbacks, a common concern for the masters athlete audience.
Signature segments
- · Closing Question: "What does endurance mean to you?"
Topics covered repeatedly
Who gets booked here
Guests are either top-tier academic experts and researchers (like Prof. Tim Noakes and Patrick Wilson, PhD) or highly accomplished athletes with specific insights on mindset and longevity (like Olympian Deena Kastor). The common thread is deep, evidence-based expertise in a specific domain of endurance performance.
- Patrick Wilson, PhDon Sports Physiologist: STOP Wasting YOUR Money On These Supplements
- Deena Kastoron Deena Kastor's Advice To All Runners Over 40
- Paul Boothon Sports Nutritionist: Apply The Fueling Strategy Behind 2 UTMB Wins To Your Next Race
- Professor Tim Noakeson Tim Noakes: I Was Wrong About Carbs! 120g/hr Breaks World Records
- Matt Fitzgeraldon Run Your Fastest Marathon After 45, Even If You Started Late
- Brodie Sharpeon The Proven Way To Stay Injury Free As A Runner Over 40
Where to find this show
Audience & reach
The podcast promotes its own coaching services and training plans. It also features affiliate links and discount codes for relevant products like HRV monitors and sports nutrition brands, as seen in episode descriptions.
Subscriber and view counts are pulled live from YouTube and re-verified on a 30-day cycle. Listener estimates for the RSS feed aren't published here unless they're host-verified.
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People also ask
- What is the host's full name?
- The host is Jusman So, an RRCA certified Distance Running Coach.
- Is The Endurance Lab podcast still active?
- Yes, as of mid-2026, the podcast is actively releasing new episodes on a weekly to bi-weekly basis.
- What is the format of the show?
- It is a long-form interview podcast. Each episode features a one-on-one conversation between the host and an expert guest, typically running 60-90 minutes.
- Who is this podcast for?
- The show is explicitly designed for 'midlife' runners and endurance athletes (40s, 50s, and beyond) who are interested in the science behind performance and longevity.
- Where can I listen to the podcast?
- The podcast is available on YouTube, Apple Podcasts, Spotify, and other major podcast platforms.
- How can I pitch a guest for the show?
- The podcast's official website, theendurancelab.run, provides a contact email for inquiries.
Built from the show's public RSS feed, YouTube, the host's own websites, and the cited sources below. Computed and AI-extracted fields are labelled. Facts only — no private info, no fabrication, no transcripts republished.
Sources & how this page was built
This page is AI-assisted, grounded in the public sources cited below, and host-verifiable. We publish facts only; we do not republish transcripts. If anything here is wrong, the host can claim and correct the page above.Model: gemini-2.5-pro · high confidence
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