VO₂ Max vs Lactate Threshold — What Actually Matters for Ultra Runners

Most runners obsess over VO₂ max. Watches flash it. Apps brag about it. Athletes compare numbers like trophies.But here’s the truth: if VO₂ max decided races, we wouldn’t need start lines. We’d just hand medals to lab results.In this episode, Ron and I break down the real difference between VO₂ max and lactate threshold — and reveal why neither metric tells the full story for trail and ultra runners.You’ll learn:🏁 VO₂ Max — Your Engine SizeWhat it really means, how much you can influence it, and why it’s not the best predictor of ultra performance.⚡ Lactate Threshold — Your Sustainable SpeedWhere the real racing happens, and why improving this matters more than chasing a bigger number on your Garmin.🪨 The Ultra Limiter No One Talks About: Muscular EnduranceThe silent killer of 100 milers — and why blown quads, poor fueling, and mental fatigue end more races than oxygen capacity ever will.If you want help building true ultra strength — beyond the lab metrics — that’s exactly what we coach inside the Ultra Performance Method.

In this episode, Isobel and Ron are calling out the biggest myths in running that just won’t die — from “more miles are better” to “pain is weakness leaving the body.”These myths keep runners stuck, injured, and frustrated. Together, they break down the truth behind each one and share what actually works for long-term, strong, and sustainable running.Expect a mix of science, experience, and a few laughs as they cover:Why chasing mileage can backfireHow strength and mobility are secret speed toolsThe real deal on carbo-loadingWhy mindset, proper training and recovery matter more than gearAnd why ultras will never get easier — but you’ll get strongerIf you’re ready to train smarter, not just harder, this episode will change how you think about your running forever.🎧 Tune in now — and if you’re ready to go deeper, check out The Ultra Performance Method, our coaching program designed to help runners go further, faster, and injury-free.www.peakendurancecoaching.com.au

Welcome back to the Peak Endurance Podcast with Isobel & Ron.In this episode, we flip the script: instead of adding more to your training, we’re looking at what to avoid. Because sometimes, progress isn’t about piling on — it’s about cutting out the habits that hold you back.We cover the 10 things smart runners don’t do, including:kipping strength trainingIgnoring recoveryPushing through every niggleChasing junk milesWinging nutritionGoing out too fastComparing everything to StravaNeglecting mindsetOvercomplicating trainingGoing it aloneYou’ll hear how small shifts in these areas can keep you injury-free, build confidence, and make you a stronger, more consistent runner. Ready to put these principles into action? That’s exactly what I do with my athletes inside the Ultra Performance Method — integrating training, strength, nutrition, and mindset into one system. Check out www.peakendurancecoaching.com.au

A lot of runners think that hiring a coach means guaranteedresults. Or that once you’ve trained enough, ultras somehow get easier. In this episode, Isobel and Ron break down why both of those ideas are myths.We talk about:- why coaching is guidance and accountability - not a magic shortcut.- the truth about training: it never makes ultras easy, but it makes you stronger at handling the ahrd. If you’ve ever wondered why ultras still feel brutal nomatter how fit you are, or if you’ve questioned whether a coach can “guarantee”your success, this episode will set the record straight.👉 Tune in to learn whychasing “easy” is the wrong goal—and why embracing the challenge is where themagic happens. 

Ultras never go to plan. The runners who finish strong aren’t the ones who hope for a perfect day—they’re the ones who are ready for anything.In this episode, I break down how to prepare for the inevitable curveballs of ultrarunning: nutrition mishaps, gear fails, weather chaos, and those mental lows that creep in at 3 a.m.You’ll learn:Why training in adverse conditions is a hidden superpowerHow to fuel flexibly when things don’t go to planThe art of problem-solving mid-race (without panicking)Mental strategies to carry you through the final 20% when grit matters mostQuick fixes for common race-day disastersBy the end of this episode, you’ll know how to stay calm, adapt, and finish your ultra feeling strong.👉 Grab my free Race Day Problems & Quick Fixes Checklist by commenting CHECKLIST on any post on Instagram

Ron and I break down what it actually takes to build true endurance over months and years—not just survive a big weekend. We unpack the physiology of aerobic capacity (why an easy-paced base is your performance superpower), how to apply progressive overload without tipping into fatigue, and the mindset tools that turn consistency into confidence on race day. You’ll learn how to build the base, add stress slowly, and let patience compound.If you want a plan you can trust, check out Peak Endurance Coaching and sign up for my free workshop!

Whether you’re logging long runs on quiet trails or squeezing in miles along busy roads, safety should always come first. In this episode, Ron and I dive into practical strategies every runner can use to stay safe while training.We cover:✅ Road running safety—visibility, traffic awareness, and sharing space with others✅ Trail running safety—gear, navigation, wildlife, and running solo✅ Personal safety tips—staying alert around people, tech use, and what to carry✅ How to build safe habits without losing the joy of runningStaying safe doesn’t mean running scared—it means running smart. Tune in for actionable advice to keep your training consistent, confident, and worry-free.👉 If you enjoyed this episode, share it with a running friend. Also, go to Instagram @peakendurancecaoching and DM me 'safety' for the tips. Also, check out my free workshop 'Spot and Fix Your Training Blind spots' on my website here<<

Are you forcing your runs even when your body is screaming at you? That’s a fast track to overtraining and injury. In this episode, we break down:How to recognise the signs your body needs restWhen it’s okay to swap, shorten, or walk your runThe difference between productive discomfort and damaging fatigueWhy adjusting your training is not “quitting”—it’s the smartest move you can makeListen in and discover how listening to your body can actually make you a stronger, healthier, and faster runner.

Ever had a week where every run feels like a slog and you start wondering if you’ve lost all your fitness? You’re not alone—and it’s probably not your fitness that’s the problem. It’s your recovery.In this episode of the Peak Endurance Podcast, Ron and I break down:Why “feeling flat” doesn’t automatically mean you’re unfitThe key signs you’re dealing with fatigue, not a loss of fitnessHow to tell when you should push through and when you should back offPractical recovery strategies to get your energy and performance backIf you’ve been training hard but can’t seem to find your spark, this episode will help you reset, recover, and return stronger than ever.🎧 Listen in, learn how to work with your body, and stop beating yourself up over a bad run.

Think your best running days are behind you? Think again. In this episode, Ron and I dive deep into what it really takes to thrive—not just survive—as an ultrarunner over 50.We explore the key physiological shifts that come with age, including hormonal changes and slower recovery, and explain how smart training, targeted strength work, and a more thoughtful approach to rest can keep you performing at a high level for years to come.We share powerful insights from both coaching and personal experience, and we unpack:Why running less can sometimes lead to more progress after 50How to adjust training loads for long-term consistencyThe real reasons you feel flat—and how to fix itSimple recovery strategies that actually workWhether you're an experienced ultrarunner or just starting your endurance journey later in life, this episode will leave you informed, inspired, and ready to hit the trails with purpose.