Épisodes

  • Re-Run: Predicting Future Injuries & Early Detection with Eric Hegedus (Feb, 2022)
    Nov 30 2025
    Learn more about Brodie's Research Database & AI Assistant 📄🔍For MORE Run Smarter Resources 🏃‍♂️📚- Including Free Injury Prevention Courses 🩹🎓- The Run Smarter Book 📖- Access to Research Papers 📄🔍- & Ways to Work with Brodie 🤝👟👉 CLICK HERE! 🎉✨Predicting Future Injuries & Early Detection with Prof. Eric HegedusIn today’s rerun episode, Brodie sits down once again with Professor Eric Hegedus—physical therapist, clinician, researcher, and one of the podcast’s favourite returning guests. Eric previously joined us in Episode 186 to dive into return-to-running principles. Today, he’s back to explore one of the hardest and most misunderstood topics in running science:Can we actually predict running injuries?If so, how? And what should runners do with that information?Using insights from his 3-year prospective cohort study, Eric walks us through what physical performance tests can and cannot tell us about injury risk—and why simple movement screens like single-leg squats may be more powerful than we ever realised.We also dive into psychosocial risk factors, early warning signs, modern wearable data, and why injury prediction research is evolving rapidly.What This Episode CoversWhy Eric designed a study to challenge the Functional Movement Screen (FMS)The 15 bodyweight performance tests studied across 360 athletesWhich movement patterns actually mattered for overuse injuriesThe shocking finding: when motor control was considered, past injury stopped predicting future injuryWhy weak glute medius and poor ankle mobility show up repeatedly in injured runnersHow poor movement gives you “less wiggle room” before overloadWhy injury prediction today is no longer just movement → injury, but a multifactorial real-time modelThe four early warning signs of an upcoming injury episodePractical takeaways all runners can apply immediatelyKey Insights & Takeaways1. Movement Quality Matters More Than We ThoughtEric’s research found that poor single-leg or double-leg squat control was strongly associated with future overuse injuries—even more than past injury history. When movement quality was poor, “past injury” no longer predicted new injury. This indicates:Poor motor control = major vulnerabilityRunners with poor control have less buffer when workloads fluctuateRunners who move well have a much larger margin for errorSymptoms of poor control during squats include:Knees collapsing inwardTrunk rotatingHeels liftingUsing the spine instead of hips/knees to descendThese often reflect:Weak glute mediusPoor ankle mobilityPoor neuromuscular coordination after prior injury2. The Tests That Truly MatterEric’s study grouped bodyweight tests into:Active motionMotor controlHip stabilityFlexibilityPowerBut the only category that consistently correlated with overuse injury was:Motor Control: quality of double-leg and single-leg squatThese tests are simple, take 20 seconds, and anyone can self-assess in front of a mirror.3. Early Warning Signs of an Injury (Clear Red Flags)Eric highlights four factors runners should monitor weekly:FatigueStress levelsSleep qualityMuscle sorenessWhen all four trend in the wrong direction, an injury is often imminent.4. Wearables Are Changing Injury PredictionUnlike old studies that tested athletes once per year, modern tech (Garmin, Whoop, Oura, etc.) collects real-time data—giving much stronger prediction models.Right now, Eric estimates we can predict injury with:👉 30–50% confidence Already far better than the past, and improving rapidly.5. Runners Must See Themselves as Whole HumansMechanical load alone doesn't explain injuries. Psychological and lifestyle factors matter just as much:TravelStressPoor sleepRelationship/social strainHigh sorenessReduced recovery behaviorsIgnoring these variables leads runners into repeated injury cycles.🧠 Practical Tips for RunnersFilm yourself doing a single-leg and double-leg squat → check knee control, trunk alignment, ankle mobilityAvoid running when fatigued, highly stressed, poorly slept, or extremely soreBuild glute medius strength (side planks, hip abduction variations)Improve ankle mobility if squats improve with heels elevatedConsider cross-training to break unidirectional overloadTake easy days without guilt—they prevent injury, not reflect weaknessLook at yourself as a whole athlete: body + mind + lifestyle📚 Related Research MentionedHegedus et al. Physical performance tests predict injury in NCAA athletesChris Bramah: Hip drop & knee mechanics associated with running injury (Referenced within conversation)👤 About Today’s Guest: Prof. Eric HegedusEric Hegedus is a professor, clinician, researcher, and highly respected physiotherapist whose body of work spans biomechanics, injury risk, and clinical reasoning. His research is widely used globally in sports rehabilitation and athlete screening.
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    1 h et 4 min
  • Latest Research: Dynamic Stretching Benefits, Running Economy Insights & The Future of Tendon Treatment
    Nov 23 2025

    Learn more about Brodie's Research Database & AI Assistant 📄🔍

    For MORE Run Smarter Resources 🏃‍♂️📚
    - Including Free Injury Prevention Courses 🩹🎓
    - The Run Smarter Book 📖
    - Access to Research Papers 📄🔍
    - & Ways to Work with Brodie 🤝👟
    👉 CLICK HERE! 🎉✨

    In this month’s Latest Research episode, we break down five new papers added to the Run Smarter Research Library — including big updates on trail running performance, dynamic stretching, running stability, and emerging tendon therapies like ozone, collagen, and PRP.

    Whether you're a trail runner, road runner, or someone dealing with a stubborn tendon injury, this episode arms you with the latest insights to train smarter and reduce injury risk.

    In This Episode


    Trail Running: What Predicts Performance & Injury Risk?

    Paper: Analysis of Factors Influencing Injuries and Performance in Trail Running
    Key insights:

    • Higher weekly volume, more elevation gain, more interval training, and structured recovery → lower injury risk
    • Sleep + passive recovery (massage, mobility, sauna, cold plunges) strongly linked to better performance
    • Taller runners had slightly higher injury risk
    • Prepared tissue = safer tissue
    • More training is protective — but only when recovery is adequate

    Dynamic Stretching: Does It Improve Neuromuscular Readiness?

    Paper: Acute Effects of Dynamic Stretching on Knee Joint Position Sense and Dynamic Balance in Recreational Runners
    Key insights:

    • A 5-minute dynamic warm-up improved:
      • Joint position sense
      • Single-leg balance
      • Neuromuscular “readiness”
    • Runners were more accurate with limb positioning and more stable on Y-Balance Test

    Dynamic Stability & Running Economy: Why Variability Helps

    Paper: Runners with Lower Dynamic Stability Exhibit Better Running Economy
    Key insights:

    • More step-to-step variability (“controlled chaos”) = better running economy
    • Stability didn’t change with speed → suggests an individual running “trait”
    • Efficient runners aren’t rigid — they allow micro-adjustments

    Ozone Therapy for Tendinopathy — An Emerging Option?

    Paper: Oxygen–Ozone Therapy in Tendinopathy Management
    Key insights:

    • May reduce pain, improve function, and support collagen regeneration
    • Early evidence only; protocols vary
    • Appears promising as an adjunct, not a standalone treatment

    Porcine Collagen Injections for Proximal Hamstring Tendinopathy

    Paper: Porcine Collagen Injection Therapy Affects Proximal Hamstring Tendinopathy in Athletes
    Key insights:

    • Return to sport:
      • Collagen + rehab: 57 days
      • Rehab only: 72 days
    • Greater functional improvements in the collagen group
    • Still small, preliminary studies
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    43 min
  • Exclusive AMA: Stress Fractures, Under-Striding, Strength Sets, & Compression Socks
    Nov 16 2025

    Learn more about Brodie's Research Database & AI Assistant 📄🔍

    For MORE Run Smarter Resources 🏃‍♂️📚
    - Including Free Injury Prevention Courses 🩹🎓
    - The Run Smarter Book 📖
    - Access to Research Papers 📄🔍
    - & Ways to Work with Brodie 🤝👟
    👉 CLICK HERE! 🎉✨

    In this special episode, Brodie releases a previously patron-only AMA, answering a wide range of listener questions across injury rehab, running technique, strength training, and recovery tools. Even if you don’t struggle with these issues now, the principles and reasoning in Brodie’s answers provide invaluable insight into smarter training decisions for every runner.

    🦴 1. Training With Stress Fractures Below the Ankle

    Brodie breaks down why not all stress fractures are equal and why their location, grade, and healing stage matter.
    He explains:

    • The difference between high-risk vs low-risk stress fractures
    • Why navicular fractures heal slowly due to poor blood supply
    • The importance of pain-free loading (during, after, and next day)
    • How to rebuild fitness without stressing the foot: swimming, pool running, upper body strength, knee extensions, seated hamstring curls
    • A staged return to loading:
      1. Offloaded cardio + upper body strength
      2. Seated cycling with low resistance
      3. Rowing + progressive cycling loads
      4. Standing lower-limb strength work (squats, lunges, calf raises)
      5. Elliptical and increasing time-on-feet tolerance
      6. Jump progressions → walk/jog program

    Brodie even maps out a sample weekly schedule for mixed cross-training and strength while rehabbing.


    🏃‍♀️ 2. “Understriding” Explained (Gait Analysis Breakdown)

    A listener asks if it's possible to understride because her gait report showed “reduced overstride bilaterally.”

    Brodie explains:

    • What overstriding actually is
    • Why you must contact slightly in front of your centre of mass
    • Why a high cadence (e.g., 188 spm) naturally prevents overstriding
    • Why “closer to centre of mass than average” is not a problem if you feel stable and upright
    • Why there's usually no need to change your technique if you're not braking excessively or injuring yourself

    Great mini-lesson on biomechanics, cadence, and efficient landing mechanics.

    🏋️‍♀️ 3. Is One Set Enough in Strength Training?

    A unique question: Can I just do one set of an exercise and move on?

    Brodie dives into:

    • What’s required to trigger true adaptation
    • Why one set rarely provides enough consistent stimulus
    • Why variety is good—but too much can “spread your progress thin”
    • How to work around boredom or repetition fatigue using:
      • Supersets
      • Circuits
      • Alternating upper/lower body between sets
    • His recommended “big three” for runners:
      • Squats
      • Deadlifts / Lunges / Step-ups
      • Calf raises
    • How minimal effective dosing still works if done consistently and progressively

    Practical, realistic strength advice every recreational runner can apply.

    🧦 4. Do Compression Socks Actually Help Twingy Calves?

    Brodie reviews the latest meta-analysis on compression garments and their effects on recovery:

    • Stronger evidence for resistance training recovery
    • No significant recovery effects following running
    • Small benefits for next-day cycling performance

    His advice:

    • If compression feels nice, it’s fine to use as a short-term comfort tool
    • BUT: don’t rely on it—investigate the cause of recurring calf twinges
      • Training load balance
      • Speed work
      • Hills
      • Shoe heel-drop
      • Hydration and sodium status
    • Follow the Recovery Pyramid (Shona Halson):
      1. Sleep, nutrition, hydration, stress
      2. Water immersion
      3. Active recovery
      4. Massage
      5. Cold/heat, cryo, infrared
      6. Top of pyramid: fads like foam rolling, massage guns, compression

    🎧 Final Thoughts

    This AMA covers a broad range of topics, but the theme is consistent:
    Use symptoms to guide load, progress logically, and focus on long-term habits rather than quick fixes.

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    49 min
  • Unlocking Running Potential Through Strength Training (Brodie on The Rambling Runner Podcast)
    Nov 9 2025

    Learn more about Brodie's Research Database & AI Assistant 📄🔍

    For MORE Run Smarter Resources 🏃‍♂️📚
    - Including Free Injury Prevention Courses 🩹🎓
    - The Run Smarter Book 📖
    - Access to Research Papers 📄🔍
    - & Ways to Work with Brodie 🤝👟
    👉 CLICK HERE! 🎉✨

    In today’s episode, Brodie is featured as a guest on The Rambling Runner podcast to break down what the science REALLY says about strength training for runners. We dive deep into the research around how lifting makes runners faster, the misconception of “bulking up,” and what runners actually need to be doing in the gym to improve running economy, tendon stiffness, and performance.

    You’ll learn why traditional lighter, high-rep “runner-style strength work” is NOT what the literature supports — and why shifting toward heavier, low-rep loading can deliver real performance outcomes… even in highly trained runners.

    We also cover the importance of plyometrics and discuss how combining both heavy strength + tendon-focused plyo creates the biggest return for long distance runners.

    Whether you’re trying to run PBs, reduce breakdown, or just build a bulletproof body that can run for decades — this episode will help you strength train smarter, not harder.


    What You’ll Learn:

    • Why strength training improves performance more reliably than it prevents injury
    • What the evidence shows about tendon stiffness, spring mechanics & running economy
    • Why strength training will NOT make you “bulky” as a distance runner
    • The 4 “big rocks” exercises Brodie recommends runners prioritise
    • Why plyometrics boost running efficiency when paired with heavy lifting
    • How to dose reps, sets & rest correctly for actual performance carryover (not just a burn)
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    42 min
  • Re-Run: Finding the Right Taper & Recovery Week Strategy with Jason Fitzgerald (Mar, 2022)
    Nov 2 2025

    Learn more about Brodie's Research Database & AI Assistant 📄🔍

    For MORE Run Smarter Resources 🏃‍♂️📚
    - Including Free Injury Prevention Courses 🩹🎓
    - The Run Smarter Book 📖
    - Access to Research Papers 📄🔍
    - & Ways to Work with Brodie 🤝👟
    👉 CLICK HERE! 🎉✨

    In this episode, I’m joined by elite running coach and host of the Strength Running Podcast, Jason Fitzgerald, to unpack one of the most confusing parts of training: how to structure your taper and recovery weeks. Whether you're preparing for a half marathon, marathon, or ultra, it’s not enough to just "cut back"—the wrong taper can leave you feeling flat on race day, while skipping recovery weeks can lead to burnout and injury. Jason explains the science of reducing fatigue without losing fitness and reveals how small adjustments in training frequency, volume, and intensity make a big difference to performance.

    We also dive into how often recovery weeks should be used, why you shouldn't fear losing fitness during a down week, and why maintaining speed during a taper is critical. Jason shares practical taper templates, common mistakes runners make, and how to individualize your taper through experience and experimentation. If you want to feel fresh, fast, and mentally ready for race day—this episode gives you a smarter approach to training so you can perform at your best.

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    54 min
  • Latest Research: Running Hills Faster, Race-Day Carb Intake, Tendon Health with Estrogen Changes
    Oct 26 2025

    Learn more about Brodie's Research Database & AI Assistant 📄🔍

    For MORE Run Smarter Resources 🏃‍♂️📚
    - Including Free Injury Prevention Courses 🩹🎓
    - The Run Smarter Book 📖
    - Access to Research Papers 📄🔍
    - & Ways to Work with Brodie 🤝👟
    👉 CLICK HERE! 🎉✨

    In today’s episode, we explore three brand new running research studies that shed light on how to run faster across different terrains, optimize your fueling strategy, and understand how hormones influence tendon health. Whether you're training for a marathon, chasing a trail PB, or navigating changes in your body as you age, this episode delivers powerful and practical science-backed insights.

    Research Papers Covered
    1. Biomechanical Strategies to Run Faster on Level, Uphill & Downhill Terrain

    Researchers analysed how runners increase speed across different gradients and where the mechanical load shifts in the body. Key findings:

    Flat running: Speed increases mostly from longer stride length, powered by the ankle/calf complex
    Uphill running: Speed comes from higher cadence and greater work from hip flexors & hamstrings
    Downhill running: Higher eccentric quad load due to braking forces

    Training takeaway: Strengthen calves for flats, hip flexors/hamstrings for hills, and eccentric quads for downhill stability

    2. Under-Fueling in Endurance Racing: Carbs Are Underconsumed & Overestimated

    This study tracked marathoners and cyclists during real races and found:
    Actual carb intake = ~21g/hour (far below the 60–90g/hour recommended)
    Athletes overestimated how much they thought they consumed
    Leftover gels were high, suggesting taste fatigue or gut issues

    Sleep & anxiety strongly impacted fueling success
    Training takeaway: Fuel by schedule, not by feel. Practice gut training and improve sleep before race day

    3. Estrogen & Progesterone’s Impact on Tendon Health

    A fascinating tendon biology study showed:
    Male and female tendons remodel differently
    Female tendons respond strongly to hormone changes
    Estrogen increases tendon repair activity, while progesterone stabilizes tissue

    Hormonal changes (e.g. menopause, cycle phase, contraceptives) may influence tendon injury risk
    Training takeaway: Women experiencing peri/menopause or hormonal changes may need longer recovery windows & consistent strength training

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    52 min
  • Exclusive AMA: Managing Multiple Injuries / Heart Rate Discrepancies / Stitches / Rotating Shoes
    Oct 19 2025

    Learn more about Brodie's Research Database & AI Assistant 📄🔍

    For MORE Run Smarter Resources 🏃‍♂️📚
    - Including Free Injury Prevention Courses 🩹🎓
    - The Run Smarter Book 📖
    - Access to Research Papers 📄🔍
    - & Ways to Work with Brodie 🤝👟
    👉 CLICK HERE! 🎉✨

    Topics Covered

    Managing Multiple Injuries (e.g., Plantar Fasciitis & PHT)

    • How to prioritize the most debilitating injury using key factors:
      • Severity
      • Duration
      • Irritability
      • Predictability
    • Why you should focus on “bang for your buck” exercises (e.g., deadlifts, hamstring curls, calf raises).
    • How to combine exercises to target multiple injuries efficiently (e.g., barefoot single-leg deadlifts).
    • The importance of progressive overload in rehab — not just maintaining bodyweight work.
    • How to stay active during flare-ups and make sure both injuries are improving week to week
    • Why Running Can Feel Easier Than Cycling (Despite a Higher Heart Rate)
    • How steady-state cardio explains why running can feel smoother than a variable spin class.
    • The impact of heat, humidity, and muscle groups used on perceived effort.
    • How familiarity with a movement can affect heart rate and effort perception.
    • The “central governor theory” — how your brain regulates fatigue and effort.
    • Brodie’s personal story: going from marathon runner to struggling to swim 50 meters, and how adaptation and calmness change everything.

    What Causes Stitches — and Can You Stop Them?

    • Why side stitches remain somewhat mysterious despite many theories.
    • Possible causes:
      • Fatigue or imbalance in trunk/core muscles
      • Diaphragm displacement theories (including a strange but possibly effective breathing trick!)
    • Why core workouts the day before a run can trigger stitches — and what Brodie learned from experience.
    • An invitation for listeners to test and report back on the “left heel drop and exhale” technique.

    Should You Rotate Your Running Shoes?

    • Difference between rotating the same model vs different brands and types.
    • How lighter and super shoes can improve performance — and when they can backfire.
    • Using shoes as tools: minimalist for speed and proprioception, stability shoes for recovery days.
    • The double-edged sword:
      • Poor transitions = increased injury risk.
      • Gradual adaptation = greater resilience and reduced overuse risk.
    • Why shoe variation can distribute load and lower repetitive stress when done properly.

    Key Takeaways

    • Focus rehab on the most limiting injury first, and keep it progressive.
    • Familiarity plays a massive role in perceived exertion between different activities.
    • Side stitches may stem from muscle fatigue or diaphragm misalignment — and could respond to strategic breathing.
    • Rotating shoes can either reduce or increase injury risk — it depends entirely on how gradually you adapt to each type.
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    42 min
  • Q&A 2: Age & Performance, Achilles Injury Expectations, MRI Alternatives, Tendon Health & Stress Shielding
    Oct 12 2025
    Learn more about Brodie's Research Database & AI Assistant 📄🔍For MORE Run Smarter Resources 🏃‍♂️📚- Including Free Injury Prevention Courses 🩹🎓- The Run Smarter Book 📖- Access to Research Papers 📄🔍- & Ways to Work with Brodie 🤝👟👉 CLICK HERE! 🎉✨In this listener Q&A episode, Brodie dives into four fascinating research-backed topics that every runner should understand — from aging performance to tendon rehab science:How running performance declines with age — and the key training interventions to slow it downRecovery potential after Achilles tendon rupture or tendinopathy, with or without surgeryThe true accuracy of MRI vs. CT scans for stress fractures and other running-related injuriesWhether isometric exercises after a run can strengthen tendons and reduce “stress shielding”Episode SummaryIn this “Ask Brodie Anything” edition, Brodie tackles questions from listeners covering performance longevity, injury recovery, and the science behind imaging and tendon adaptation.🏃‍♂️ 1. Aging & Running PerformanceBrodie unpacks the 2019 paper “The Physiology and Biomechanics of the Master’s Runner” by Rich Willy, revealing:Performance decline typically begins around age 35, with VO₂ max dropping ~7% per decade.Active runners experience slower declines due to training volume and intensity.Step length decreases and cadence increases with age, while ankle power and tendon stiffness reduce, leading to slower speeds. 🧩 Key takeaways:Maintain high-intensity interval sessions and training volume.Add heavy resistance training (2–3x per week) and plyometrics to preserve tendon stiffness and bone density.Use cross-training (ski erg, bike, rower) to build aerobic fitness while reducing joint stress.🦶 2. Achilles Tendon Rupture: Can You Fully Recover?Drawing from the 2016 World Congress on Sports Physical Therapy Consensus Statement, Brodie explains that:Return-to-sport rates range from 55–90% after 1 year of rehab.Surgical cases report 29–87% return, but recurrence rates remain high (27–44%).Recovery depends on age, injury severity, and rehab adherence. 🧠 Brodie emphasizes that full recovery without pain or fear of re-injury is possible — but addressing psychological readiness is as vital as physical rehab.🩻 3. MRI vs. CT for Stress FracturesBrodie reviews a systematic review comparing imaging accuracy:CT scans: Sensitivity 32–38%, Specificity 88–98% → great for confirming, poor for ruling out.MRI: Sensitivity 68%, Specificity 99% → still the gold standard for stress fractures. 👉 Clinical takeaway: A CT scan can confirm, but a negative CT often still needs MRI. Scans should be used only when clinically justified — chronic tendinopathies are best diagnosed via functional assessment, not imaging.💪 4. Isometrics After Running: Useful or Overhyped?Referencing tendon researcher Keith Baar, Brodie discusses “stress shielding” — when tendons redirect load away from damaged fibers.Post-run isometrics (3×20–30s holds) can help load fatigued tendons more evenly.But for true tendon remodeling, progressive heavy slow resistance remains essential.Alternatives like “creep loading” and time-under-tension exercises can also reduce stress shielding — no need to be fatigued to gain benefits.🧩 Key TakeawaysStay strong as you age — resistance and high-intensity training slow decline.Achilles rehab success depends on gradual loading, not just surgery.MRI beats CT for stress fractures; be strategic about when to scan.Isometrics help, but heavy slow load is still the cornerstone of tendon rehab.📚 Resources MentionedWilly et al. (2019): The Physiology and Biomechanics of the Master’s Runner2016 Consensus Statement on Return to Sport after Injury (World Congress in Sports Physical Therapy)Diagnostic Accuracy of Imaging Modalities for Lower Extremity Stress FracturesKeith Baar: Stress Shielding and Tendon Adaptation episode
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    35 min