We break down the five most important running studies of 2025 and give you a framework for deciding which science actually deserves your attention, and what's just expensive distraction. Plus, we debunk the hype around ketone supplements and Norwegian double threshold training.

What We Cover:

• The "Should I Care" framework for evaluating new research
• Why strict 80/20 polarization isn't magic for recreational athletes
• How strength training improved time-to-exhaustion by 35%
• The fueling gap: marathoners averaged just 22-35g carbs/hour vs. the 60-90g recommended
• Why poor sleepers are 1.78x more likely to get injured
• The single-session spike that increases injury risk by 128%

Resources:

• Tom Ralph's fueling tracking app: https://apps.apple.com/us/app/fuelflow/id6755150914
• Training Peaks
• HRV for Training app

Studies Referenced:

• Rosenblatt et al 2025 (Polarized Training)
• Zanini et al 2025 (Strength Training)
• de Jong et al 2025 (Sleep)
• Franson et al 2025 (Injury Risk)

Work With Us:One coaching spot available with TJ! Don't wait until January 1 reach out today. Microcosm-coaching.com

We're back after a quick Thanksgiving break to share the running wisdom we wish someone had told us years ago. Drawing on interviews with experienced runners and our own coaching insights, we break down five lessons that could save you years of frustration, injury, and wasted effort.

What We Cover:

• Why the most important quality in an athlete isn't talent, it's showing up
• How to incorporate skiing and winter activities into spring race training
• The truth about consistency vs. intensity (spoiler: consistency wins every time)
• Why defining yourself by your pace is a trap
• Recovery isn't optional, it's where adaptation actually happens
• The problem with cookie-cutter training plans
• Finding the balance between passion and obsession

Listener Question:"I'm training for a spring 50K but live in Colorado. Can I swap runs for ski days or will I lose my running fitness?"

Announcements:Boston Marathon Webinar Series with coaches Skyler and James starting in January. Free for Microcosm clients. Details at microcosm-coaching.com.

Connect:

• Website: microcosm-coaching.com
• Email: [email protected]
• Foothills Community: $10/month (code FOOTHILLS10)

What separates athletes who reach their potential from those who plateau? In this fan-favorite episode, Coach TJ and Zoe break down 11 guiding principles that form the foundation of sustainable athletic growth—from knowing your why to controlling the controllables.

But first, we settle the important debates: Pop-Tarts vs. Fig Newtons, why watermelon at aid stations is basically a psy-op, and which race day foods are actually worth reaching for.

The 11 Principles:

1. Know your why
2. Create your vision
3. Commitment to excellence
4. Goals as stepping stones (not leaps)
5. Focus on the basics
6. Easy days easy, hard days hard
7. Shift from proving to improving
8. Practice patience and non-judgment
9. Feelings can be more informative than numbers
10. Stress is stress
11. Control the controllables

Coaching announcement: Multi-sport coaches Zach Russell and Kristin Lane currently have roster spots open. Learn more at microcosm-coaching.com

Connect with us:microcosm-coaching.com[email protected]

Training harder but not getting faster? Dealing with recurring injuries? The problem might be your fuel.

Before Thanksgiving, I'm sharing an episode from Your Diet Sucks about RED-S, the energy mismatch that's quietly destroying athletic performance and causing injury after injury.

When you chronically undereat for your training load, your body can't adapt. You're doing the work, but not getting the gains. Studies show athletes with RED-S are 4.5x more likely to get bone injuries and miss significantly more training time.

Signs You're Underfueling:

• Training harder but getting slower
• Stress fractures or injuries that won't heal
• Constantly exhausted despite rest days
• Lost period (or loss of morning erections in men)
• Frequent colds and illness

You can't out-train a calorie deficit. Adequate fueling is how you honor your training. Going into the holidays: eat the food, recover hard, and come back stronger.

In this episode: What RED-S is, how it shows up in male athletes (often overlooked), why it prevents adaptation, and how to fuel for actual performance gains, not just more miles.

Listen before your holiday meals. Food is fuel. Recovery is where you get faster.

👍 Subscribe for weekly evidence-based training advice
💻 Learn more about 1:1 coaching: https://www.microcosm-coaching.com
📸 Follow us on Instagram: https://www.instagram.com/microcosmcoaching/

Want to run healthier, stay consistent, and finally stop the cycle of overuse injuries? This episode breaks down the five most science-backed strategies for injury prevention, in a way that’s actually useful for real runners balancing work, family, and life. Coaches Zoë and TJ take a broad but evidence-based look at what actually keeps athletes durable: smart load management, strategic strength training, real recovery (not just vibes), targeted mobility, and neuromuscular training.

They also cover why foam rolling feels good but isn’t a cure-all, whether gait analysis is worth the money, the truth about minimalist shoes, and how to safely return to training after getting sick. If you’ve been dealing with recurring niggles, you’ll walk away with clear, practical steps to train with more intention and fewer setbacks.

Timestamps:00:32 — Intro, snacks, carved-up energy
02:10 — Episode overview + why injury prevention matters
04:00 — Hot or Not: Foam rolling
06:15 — Hot or Not: Knee straps & patellar bands
10:40 — Hot or Not: Gait analysis
15:30 — Hot or Not: Minimalist/barefoot shoes
20:55 — Listener Question: Training while sick + missed workouts
32:45 — Introducing Skyler & Kyle (Masters specialists at Microcosm)
36:20 — Injury Prevention Strategy #1: Progressive Load Management
48:00 — Strategy #2: Strength Training (what actually works)
58:45 — Strategy #3: Recovery & Sleep
1:06:20 — Strategy #4: Targeted Mobility
1:12:10 — Strategy #5: Neuromuscular Training
1:17:00 — Putting it all together + hierarchy of what matters most

Want to train smarter, run stronger, and stop second-guessing your training? This episode dives into one of the biggest pitfalls we see as coaches: overthinking. From obsessing over pace and metrics to chasing “perfect” plans, Zoë and TJ break down how overthinking sabotages performance, and how to get back to feeling good, recovering well, and actually getting faster.

🎙️ In this episode:

• The “Overthinking Hall of Fame”: Pace Police, Data Collectors, and Plan Perfectionists

• Why more data doesn’t mean better training

• How to use RPE and interoception to build true awareness

• The science of simplicity and the power of the minimum effective dose

• Reframing your mindset from proving to improving

  
  

💻 Learn more about 1:1 coaching with Microcosm Coaching: https://www.microcosm-coaching.com📸 Follow us on Instagram: @microcosmcoaching🎧 Subscribe so you never miss an episode!

Want to train smarter, fuel better, and understand what your body actually needs? This episode unpacks the real science behind endurance training and fueling—no pseudoscience, no gimmicks. We start with a quick announcement about our Boston Marathon 2026 prep webinar (covering pacing, fueling, and course strategy from Hopkinton to Boylston), then move into a “Hot or Not” segment on popular running recovery tools: KT tape, dry needling, cupping, and stretching versus mobility.

Next, we tackle a listener question on calf cramps during long races—what causes them, how to respond in the moment, and how to prevent them through smarter training and fueling.

Finally, we close with a deep dive into metabolism for runners: ATP production, the limits of fat oxidation, how and why the “crossover point” matters, and why fasted or low-carb approaches can increase injury risk and reduce performance—especially for women.

⏱️ Timestamps
00:00 – Intro & Boston 2026 webinar invite04:00 – Hot or Not: KT tape, dry needling, cupping, stretching vs. mobility22:00 – Listener Q: Calf cramps—on-course fixes and long-term prevention40:00 – Metabolism 101: fat vs. carb fueling, crossover point, LEA/RED-S risks

Subscribe for more evidence-based endurance coaching.
Learn about 1:1 coaching at microcosm-coaching.com and follow @microcosmcoaching on Instagram.

If you’re running the 2026 Boston Marathon, don’t miss our Run Your Best Marathon at Boston Webinar Series—four live sessions led by certified Microcosm coaches Skylar Sorokoty and James Nance. Learn how to train for Boston’s unique course, nail your fueling, and feel confident and race-ready by April. Spots are limited, register now!

This week, Zoë and TJ are talking about one of the most misunderstood workouts in endurance training: the long run. From pacing and fueling to recovery and race-day readiness, they unpack the real science behind why long runs work—and what most runners get wrong about them.

They kick things off with a few Hot or Nots, breaking down three trending supplements in the endurance world: creatine (actually backed by science), nicotine pouches (just... no), and nitric oxide boosters (spoiler: eat your beets, skip the powder). Then, they dive into a listener question about post-ultra burnout, the fear of losing fitness, and how to rebuild motivation after a big race without overdoing it.

In the main segment, Zoë and TJ go full science-nerd on what’s happening inside your body during a long run—mitochondrial biogenesis, glycogen supercompensation, fat oxidation, and more. They talk pacing, fueling, hydration, terrain, and recovery, explaining how to get the most from your long runs without wrecking yourself.

Whether you’re chasing your first marathon finish or a 100-miler PR, this episode will help you train smarter, not harder.

Want a better year without burning out? Zoë and TJ share a practical, five-step blueprint to use your transition season to set up your best race year—without quitting running or living in the gray zone. You’ll learn how to keep frequency high (with easy intensity), sketch a long-range plan (1–3 A-races, smart tune-ups), match workouts to the right phase, and treat recovery like training so adaptations actually happen. We also tackle Hot-or-Not topics trail runners ask about: super shoes on road workouts, whether a shoe “quiver” really prevents injuries, and the truth about fueling with olive oil or swapping gels for candy. (Short version: practice what you’ll race with, and don’t copy Kilian.) If you’re planning a 50K, 100K, or 100M, you’ll hear when “real/solid” foods can help and why gut training matters. Subscribe for evidence-based coaching you can actually use.

Ever wonder what the difference really is between tempo, steady state, and threshold runs? In this episode of the MicroCast, coaches Zoë and TJ break down the most confusing middle zones in running, and explain how to use them intentionally to build endurance, speed, and confidence.

🎙️ You’ll learn:

• How to identify and feel steady state, tempo, and threshold efforts

• What’s happening physiologically at each intensity

• Common training mistakes (like running all your easy runs too hard)

• How to apply these workouts in your next training cycle

• Why effort-based training helps you avoid burnout and improve consistency

  
  

⏱️ Timestamps00:00 – Intro & “Hot or Not” segment10:30 – Listener Q: What to train for next after a big race25:15 – What’s the difference between steady state, tempo & threshold?40:10 – How to know if you’re doing these workouts right55:00 – Coaching takeaways: how to use intensity intentionally

📣 Subscribe to the MicroCast wherever you get your podcasts💻 Learn more about 1:1 coaching: microcosm-coaching.com📸 Follow us on Instagram: @microcosmcoaching