Tread Lightly Running Science Podcast

Running is not bad for your knees - if anything, consistent running is remarkably beneficial for your cardiovascular, metabolic, and mental health. In this episode, we delve into the research around running, disease risk, and mortality/longevity. You will learn how running improves heart health, lowers cancer risk, helps you sleep, and more.

In this episode, you’ll learn about:

✅ How endurance training changes your heart

✅ The impact of running on cardio-metabolic disease risk

✅ How consistent running affects your musculoskeletal system

✅ How endurance training improves sleep

✅ The imp...

Recovery tools have proliferated in the running world over the past few years: red light therapy, ice plunge buckets, peptides, and more. However, the expensive price tag does not guarantee efficacy. In this episode, we look at the data behind various recovery tools and if they actually work - or if they just come with a powerful placebo effect.

In this episode, you’ll learn:

✅ How the placebo effect interacts with recovery tools

✅ If pulsed electromagnetic field mats improve recovery

✅ How red light therapy can be used for injury heal...

Are broccoli sprout shots the secret to your next PR? Will U-Can gels help you manage weight? And are greens powders a scam or magic bullet? We sit down with registered dietitian Alex Larson, the founder of Alex Larson Nutrition. She answers all our questions on GLP-1s, cortisol-reducing supplements, lactate gels, if Laura can make her own Nomio at home, and more.

In this episode, you’ll learn:

✅ The difference between GLP-1 medications and “GLP-1-like” supplements

✅ Are superstarch gels worth the money?

✅ Do cortisol reducing supplements work?

✅ A...

Zone 2 is the magic bullet for improved health and endurance fitness - or it is overrated and spikes your cortisol. You have likely encountered both claims on social media, and neither are correct. In this episode, we dive into the science of zone 2 for runners. We discuss how to set your zone 2 correctly, who should use it, who should ignore their heart rate zones, and what happens if you run slower than zone 2 on your easy runs. Whether you are a new runner or a marathoner, you will learn something from this episode!

In...

Slower summer runs lead to fast fall races - so you have heard. But as you slog through another humid, hot long run, you may be wondering: is there truth to this adage? In this episode, we discuss ideal fall racing temperatures, all the variables that contribute to fall race performances, and how long heat adaptations actually last.

Thank you to our sponsors:

✨ Tailwind: Complete sport nutrition made simple, including hydration mixes, high-carb sport drinks, endurance fuel, and recovery mixes. Use code TREADLIGHTLY20 at https://tailwindnutrition.com/TREADLIGHTLY for 20% off your first pur...

Post-race recovery is not the avoidance of training. Rather, it is a crucial component of a well-periodized training plan, especially for a marathon or half marathon. In this episode, we first examine the physiological impact of racing a marathon or half marathon on the body. Then, we detail how to approach a recovery phase, including what can enhance or impair recovery after a race.

In this episode, you’ll learn:

✅ What happens to your body after you run a marathon

✅ Should you do a recovery run after the race?

✅ How...

You have likely encountered the advice that all you need to do to run better is to run more. Is training really that simple? In this episode, we discuss high volume running: why people do it, who it works for, and who should skip it. We examine the research and assess unique situations such as busy athletes, beginners, masters athletes, and injury-prone runners. You will also learn how to safely increase and support high volume training, so that you can secure the biggest driver: consistent training over years.

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Tune-up races are a common piece of many training plans. Are they necessary? Why should you bother racing in the middle of training?

In this episode, we discuss all you need to know about how to run an effective tune-up race (and whether to run one at all). We draw from years of coaching experience and an understanding of various training theories to guide you through how to incorporate non-goal races into your training, in a way that does not detract from your goal race. You will learn how to schedule them, whether you need to taper...

“Performance is your potential minus interference - and the brain often interferes with how well we want to do.” Many runners struggle to translate their training to racing, because of race day nerves, negative self-talk, or fear of discomfort. In this episode, we are joined by Dr. Trent Claypool of Summit Sport Psychology to learn how to embrace discomfort, use positive self-talk, and train your brain for your peak performance.

Thank you to our sponsors:

✨ Tailwind: Complete sport nutrition made simple, including hydration mixes, high-carb sport drinks, endurance fuel, and recovery mixes. Use cod...

In this episode, we bring a nuanced, science-based approach to many hot topics in running right now. What causes muscle cramps? Does Pilates count as strength training? Should slower runners wear carbon plated shoes? Is it possible to overfuel on long runs? Our goal is to provide individualized guidance, rather than click-baity universalized proclamations.

In this episode, we provide our informed takes on:

✅ What actually causes muscle cramps (according to science)

✅ If taking walk breaks discounts a marathon effort

✅ If back of pack and midpack runners benefit from carbon pl...

You likely have heard both sides of the debate, as one side argues that sodium supplementation is overrated, while the other side shills sports drinks with a full gram of sodium. In this episode, we dive into the research to present you with a nuanced, science-backed discussion on the widely varying sodium needs of runners. You will learn how to determine your sweat rate and sodium needs, if sodium will prevent muscle cramps, and more.

Thank you to our sponsors:

✨ Tailwind: Complete sport nutrition made simple, including hydration mixes, high-carb sport drinks, end...

The long run is a staple of training plans from the 5K to ultra - but why? In this episode, we discuss the science of long runs, including the physiological adaptations, progressions, specificity and more. Plus, we answer your questions about why sleep is difficult after a long run, if walk breaks are okay, and if you treadmill long runs at a lower heart rate are better than outdoors.

Thank you to our sponsors:

✨ Mizuno: Shop Mizuno’s newest bouncy supertrainer: https://runtothefinish.com/neovista3/

In this episo...

Most runners have experienced sloshy stomach, nausea, urgency, or other GI issues during a race or run. However, GI problems do not have to be a part of running! We discuss gut training with board-certified sports dietitian Claire Shorenstein. You will learn protocols for gut training, if gut training reverses during your taper, and how to pick the fuel that sits best with you.

Thank you to our sponsors:

✨ Tailwind: Complete sport nutrition made simple, including hydration mixes, high-carb sport drinks, endurance fuel, and recovery mixes. Use code TREADLIGHTLY20 at https://tailwindnutrition.com...

Are you noticing that you are tired all the time and cannot seem to hit your paces in training? Those are not symptoms to ignore. Sometimes, these are signs of low ferritin levels that warrant bloodwork and a doctor visit. In this episode, we examine the research on low ferritin and running, including the causes, how to treat, and how to prevent low ferritin.

Thank you to our sponsors:

✨ Mizuno: Shop Mizuno’s newest bouncy supertrainer: https://runtothefinish.com/neovista3/

In this episode, you’ll learn:

✅ Why...

Repeatedly missing your running goals is a frustrating experience, especially if you are training hard for a race. In this episode, we discuss what causes a half marathon plateau and solutions to break through to the next performance level. You will learn how to know if you need more speed, goal pace training, endurance, or strength when training for a half marathon. Even if your races have not plateaued, the advice in this episode will help you keep progressing in your half marathon times.

Thank you to our sponsors:

✨Title Nine: Comfortable sp...

You have loved our episodes on how to run your first half marathon and marathon - so today, we have an episode for those of you who feel ready to go further. We discuss how to train for your first ultra marathon, whether you are doing a 50K, 50 miler, or 100mile. You will learn how to structure workouts and long runs, how to prepare for elevation gain, how to fuel, and more!

Thank you to our sponsors:

✨Title Nine: Comfortable sports bras that actually fit, from a women-owned company. Use code RUNTOTHEFINISH fo...

Pronation can be misunderstood as a scary, dangerous risk for injury - and people use that to sell you something. In reality, a certain degree of pronation is a normal part of the running gait. However, excessive or limited pronation can be problematic for some runners. So how do you know if you need to worry about overpronation or buy stability shoes? In episode 171, we take an evidence-based approach and guide you through anatomy and recent research surrounding pronation.

Thank you to our sponsors:

✨ Good Ranchers: American-grown meat, delivered frozen to your doo...

You have probably encountered claims that your “glutes aren’t firing” or that you have “sleepy glutes,” and that lazy glutes are hurting your running. This approach misses a lot of nuance: if you can stand, your glutes work; but weak glutes can impact running injury risk and running economy. We are joined by Dr. Gaby Go, DPT and run coach, who explains the nuances of glute activation and why strong glutes matter for runners.

Thank you to our sponsors:

✨ Good Ranchers: American-grown meat, delivered frozen to your doorstep. Use code IRON for $40 off the first order...

In our last episode, we discussed the physiology of running in the heat, including why you run slower. However, you are not doomed to suffer through slow slogs all summer long. In part two of our summer running series, we discuss heat acclimation strategies and cooling techniques to make summer running a little less miserable.

Thank you to our sponsors:

✨Title Nine: Comfortable sports bras that actually fit, from a women-owned company. Use code RUNTOTHEFINISH for free shipping at https://runtothefinish.com/title-nine/

✨ Mizuno: Shop Mizuno’s newest bouncy supertrainer: https://runtothefinish.com/neovist...

It doesn’t have to be a cruel summer of slogging through hot, humid runs. You can adjust your training so that summer running is productive and enjoyable. In part 1 of our summer running episodes, we discuss the physiological impacts of running in the heat and humidity, and how to adjust your training based on those responses.

Thank you to our sponsors:

✨ Good Ranchers: American-grown meat, delivered frozen to your doorstep. Use code IRON for $40 off the first order, or$100 off across the first three orders when customers start a subscription. Plus free p...

Pain is not just tissue damage - but it’s also just not in your brain. In this episode, we’re joined by Taylor Kruse of Kruse Elite. We discuss the neuroscience of pain and movement, including how the brain processes pain, the role of the vestibular system, and how we can think about non-injury pain for runners. Bonus: you will also learn why motion sickness happens!

Thank you to our sponsors:

✨Title Nine: Comfortable sports bras that actually fit, from a women-owned company. Use code RUNTOTHEFINISH for free shipping at https://runtothefinish.com/title-nine/

I...

Is bib-sharing wrong? Should downhill races count as a PR? Are AI running apps the future of the sport, or setting up runners for injury? In this episode, we have a nuanced discussion on many of the gray areas of sportsmanship and running culture.

✨Title Nine: Comfortable sports bras that actually fit, from a women-owned company. Use code RUNTOTHEFINISH for free shipping at https://runtothefinish.com/title-nine/

✨ Tailwind: Complete sport nutrition made simple, including hydration mixes, high-carb sport drinks, endurance fuel, and recovery mixes. Use code TREADLIGHTLY20 at https://tailwindnutrition.com/TREADLIGHTLY for 20% off your first...

Running for exercise can be cheap, but running for performance and participating in races can be expensive. Maybe you are also weary of the wastefulness of influencer culture and want to know how to purchase fewer things and make your gear last longer. In this episode, we share our advice on how to race on a budget, from gear to fuel and more.

Thank you to our sponsors:

✨ Good Ranchers: American-grown meat, delivered frozen to your doorstep. Use code IRON for $40 off the first order, or$100 off across the first three orders when...

Carbohydrates, caffeine, and water (sometimes with electrolytes): these seem so simple, but they all improve performance when taken before a race. In this episode, we discuss how to structure your pre-race meal before a 5K to marathon, including what to eat, how to time it, and how to avoid GI upset.

Thank you to our sponsors:

✨Wahoo KICKR RUN: A treadmill that feels like running outdoors. Shop here: http://bit.ly/4nai73H and read the full review: https://runtothefinish.com/wahoo-kickr-run-treadmill/

✨Probio: NSF-certified, clinically dosed, all-in-one supplement. Use this link for 40% off your...

Data can be useful (when it’s valid and reliable) - but excessive data, especially when mixed with comparison against others, can negatively impact your training and relationship with running. In this episode, we discuss Strava anxiety, the comparison trap, and when data can actually make you slower.

Thank you to our sponsors:

✨Wahoo KICKR RUN: A treadmill that feels like running outdoors. Shop here: http://bit.ly/4nai73H and read the full review: https://runtothefinish.com/wahoo-kickr-run-treadmill/

✨Probio: NSF-certified, clinically dosed, all-in-one supplement. Use this link for 40% off your o...

Women account for a majority of the growth in the sport of running over the past few years - and media is catching up with this shift. We sit down with runher magazine’s founder Ashley Mateo to discuss trends and media representation of women in running.

Thank you to our sponsors:

✨Title Nine: Comfortable sports bras that actually fit, from a women-owned company. Use code RUNTOTHEFINISH for free shipping at https://runtothefinish.com/title-nine/

✨Probio: NSF-certified, clinically dosed, all-in-one supplement. Use this link for 40% off your order and an additional 10% and free shippi...

Are you curious about running your speed workouts at the track, but feeling intimidated by it? This episode will guide you through how to confidently run at the track: the proper etiquette, terminology, popular workouts, and more. Plus, you’ll learn about smart approaches for running speedwork, whether you are on the roads or the track.

Thank you to our sponsors:

✨ Amazfit: User-friendly simple running watches with advanced features, at an affordable price point. Use link http://bit.ly/4nai73H for 10% off your purchase.

✨Probio: NSF-certified, clinically dosed, all-in-one supplement. Use this link fo...

The taper is not solely reserved for the marathon. When you are racing a half marathon as your goal race, a gradual and deliberate taper will prepare you to run your strongest, fastest race. In this episode, we discuss how to taper for a half marathon, including common taper mistakes and more.

Thank you to our sponsors:

✨Title Nine: Comfortable sports bras that actually fit, from a women-owned company. Use code RUNTOTHEFINISH for free shipping at https://runtothefinish.com/title-nine/

✨Probio: NSF-certified, clinically dosed, all-in-one supplement. Use this link for 40% off...

You are experiencing itchy eyes, nasal congestion, and sneezing on your runs. Are these allergy symptoms or illness? Is it okay to run through these symptoms, and if so, will these slow you down? In this episode, we discuss seasonal allergies, illness, and exercise-induced asthma in relationship to running and racing.

(Disclaimer: this episode does not serve as medical advice. Please consult a medical professional if concerned about allergies and asthma.)

Thank you to our sponsors:

✨ Amazfit: User-friendly simple running watches with advanced features, at an affordable price point. Use link http://bit.ly...

We received your questions about TENS units, dry needling, muscle scraping, and other physical therapy treatments. To give you the most evidence-based advice, we brought on Dr. Logan Dockery, physical therapist and running biomechanics specialist. In this episode, Dr. Logan Dockery answers all your questions about dry needling, kinesiology tape, e-stim, and more!

Thank you to our sponsors:

✨Title Nine: Comfortable sports bras that actually fit, from a women-owned company. Use code RUNTOTHEFINISH for free shipping at https://runtothefinish.com/title-nine/

✨Probio: NSF-certified, clinically dosed, all-in-one supplement. Use this link for 40% off your orde...

There are hundreds of supplements on the market - all with promising claims for faster finish times, quicker recovery, and better health. But are all supplements worth the cost? We analyze the most recent research to divide popular supplements into three categories: not worth the cost, maybe useful for some, and highly recommended. (Disclaimer: this episode does not serve as medical advice. Please consult a medical professional before starting a new supplement.)

Thank you to our sponsors:

✨ Amazfit: User-friendly simple running watches with advanced features, at an affordable price point. Use link htt...

A 5K and a marathon are objectively different distances - but they are also more similar than you think. If you’ve ever wondered why the 5K is technically a long-distance race, or what the difference between training for a mile and a marathon is, this episode is for you! We’ll discuss the metabolic and mechanical differences of the short, middle, and long distances, plus how those theoretical differences translate into training.

Thank you to our sponsors:

✨Wahoo KICKR RUN: A treadmill that feels like running outdoors. Shop here: http://bit.ly/4na...

Today’s guest is one of our favorite social media personalities, Ben Carpenter. Ben is a personal trainer who regularly debunks fitness myths on his popular social media page, @bdccarpenter. He’s also the author of “Everything Fat Loss: The Definitive No Bullsh*t Guide” and “Fat Loss Habits: The No Bullsh*t Guide to Losing Weight.”In part two of our interview with Ben, we discuss how to navigate social media advice, gatekeeping in the running community, and more!

Thank you to our sponsors:

✨Title Nine: Comfortable sports bras that actually fit, from a women-owned co...

Today’s guest is one of our favorite social media personalities, Ben Carpenter. Ben is a personal trainer who regularly debunks fitness myths on his popular social media page, @bdccarpenter. He’s also the author of “Everything Fat Loss: The Definitive No Bullsh*t Guide” and “Fat Loss Habits: The No Bullsh*t Guide to Losing Weight.”

In part one of our interview with Ben, we discuss fat loss myths. You’ll learn about why most diets fail, what science actually says about body composition changes, and more. If you enjoyed this, be sure to tune back in next week f...

Unlike most of our episodes, this episode isn’t filled with practical tips that we want you to implement in your training. Instead, we’re taking you into the science and practice of elite runner training. You’ll learn about how they structure their training volume and intensity, the crucial training components they don’t skip, and more!

Thank you to our sponsors:

✨ Amazfit: User-friendly simple running watches with advanced features, at an affordable price point. Use link http://bit.ly/4nai73H for 10% off your purchase.

✨Wahoo KICKR RUN: A treadmill that feels like ru...

Hitting the wall is dreaded amongst all marathoners – but it doesn’t have to be an inevitable experience. This episode delves into the research and statistics of hitting the wall in the marathon. Then, we provide you with a clear, practical guide of how to train, pace, and fuel so you can avoid hitting the wall.

✨Join us on Patreon.com/treadlightlyrunning or subscribe on Apple Podcasts starting in December, when we’ll be releasing special subscriber-only content!

In this episode, you’ll learn:

✅ What does hitting the wall feel like?

✅ What role does g...

There are more running shoe brands and models than ever - and all the jargon can feel confusing. In this episode, we help you navigate what features of a running shoe actually matter - and what’s just good marketing. You’ll learn about supershoes vs supertrainers, why heel to toe drop matters, what the different foams do, and more.

Thank you to our sponsors:

✨ Amazfit: User-friendly simple running watches with advanced features, at an affordable price point. Use link http://bit.ly/4nai73H for 10% off your purchase.

✨Title Nine: Com...

Parenthood brings so many new joys and new challenges alike. Of those challenges, it can feel so difficult to find the time and energy to exercise. In this episode, we’re joined by Danielle Pascente as she discusses how to manage your athletic goals in early parentood.

Danielle Pascente is a personal trainer/fitness expert in Los Angeles and the creator of the DPFIT APP & Danielle Pascente Training Guides. She can be found as the lead trainer for FitOn App and BeFit, as well as a guest trainer for Studio Tone It Up & Pop Sugar Fitness. Danielle wa...

Love it or hate it, winter running poses several unique challenges, from speed workouts on icy roads to low motivation from seasonal affective disorder. In this episode, we discuss training modifications, running gear, and nutrition approaches for training in the cold and snow.

✨Join us on Patreon.com/treadlightlyrunning or subscribe on Apple Podcasts starting in December, when we’ll be releasing special subscriber-only content!

In this episode, you’ll learn:

✅ How to deal with cold hands and Raynaud’s syndrome

✅ How to layer for winter runs

Base building is not very exciting – but it is highly effective, whether your goal is to run a faster marathon or 5K. While often conflated with an off-season, a base building phase is a distinct and crucial training phase. This phase of lots of easy miles develops both aerobic fitness and tissue tolerance, so that you can later build race-specific fitness with lower risk of injury and greater adaptations overall. In this episode, we discuss the adaptations of base building, how to structure a base building phase, and more!

✨Join us on Patreon.com/treadlightlyrunning or subscribe on A...