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Professor Roger Enoka is one of the world’s leading authorities on the neuromuscular system and has spent more than four decades studying how the nervous system produces movement, strength and fatigue. He is the author of Neuromechanics of Human Movement, now in its sixth edition. In this episode of Stronger With Time, we discuss why Type II muscle fibres are not simply high-threshold motor units, why light and heavy loads taken to failure can produce similar muscle growth despite differences in motor unit activity, and what can limit your ability to continue a set as you approach failure. In this episode, we discuss: What a motor unit is, and why muscle fibre type and recruitment threshold are not the same thing How motor unit recruitment and rate coding change as force demands increase Light versus heavy loads to failure, and the relationship between motor unit activity and muscle growth Fatigue, fatigability and why the distinction matters when we talk about training to failure How mechanical tension is generated and what we can measure in human muscle Free weights versus machines, and how balance and stability change the demands on the nervous system Lengthening contractions and the neural demands of controlling a load Neuromechanical matching and regional hypertrophy Motor neuron loss, rate coding and the role of resistance training as we age Sex differences in fatigability and what they may mean for exercise prescription Resistance training, balance and the role of impact exercise as we age Timestamps 00:00 Introduction 00:52 What is a motor unit? 03:20 Recruitment thresholds and the size principle 04:11 Muscle fibre type versus motor unit type 05:50 Fatigue, fatigability and failure 14:13 Light versus heavy loads and muscle growth 17:55 Mechanical tension and what we can measure in humans 25:40 What happens from brain to muscle across a set 29:01 Free weights versus machines 30:58 Lengthening contractions 34:34 Neuromechanical matching and regional growth 38:15 Ageing and the nervous system 42:19 Sex differences 46:52 Resistance training, balance and impact exercise 49:00 Where to find Roger’s work Resources Professor Roger Enoka University of Colorado Boulder: https://www.colorado.edu/iphy/people/faculty/roger-m-enoka Neuromechanics of Human Movement, 6th Edition: https://us.humankinetics.com/products/neuromechanics-of-human-movement-6th-edition The Science of Movement on Coursera: https://www.coursera.org/specializations/science-of-movement Dr Tony Boutagy / Stronger With Time Website: https://tonyboutagy.com/ Explore Tony’s courses: https://tonyboutagy.com/explore-the-courses-page Instagram: https://www.instagram.com/tonyboutagy/ This episode is for general educational purposes only and is not intended as individualised exercise advice.

How much of what we do in the gym today is genuinely new, and how much has been around for decades? In this episode of Stronger With Time, I speak with Dr Conor Heffernan about where many of the training ideas we now take for granted came from, how they changed over time, and what their history can teach us about how we train today. Conor is a historian and sociologist of sport at Ulster University whose work focuses on the history of strength training and physical culture. He is the author of The History of Physical Culture and When Fitness Went Global, and writes at Physical Culture Study. In this episode: How physical culture evolved into modern bodybuilding and gym culture Eugen Sandow, the first modern physique star, and why he sold light dumbbells while training heavy himself Where the squat, three sets of ten and body-part splits came from What lifters already understood about progressive overload by the 1930s The steroid era, and what changed in training once anabolic steroids arrived Where single-set and high-intensity training came from The history of women in strength, from calisthenics and “toning” to progressive strength training What Conor takes from more than a century of strength-training history into how he thinks about training today Timestamps 00:00 Introduction 00:57 Physical culture and the origins of modern gym culture 06:28 Where three sets of ten and body-part splits came from 13:08 What lifters already knew by the 1930s 16:50 Eugen Sandow and early fitness marketing 21:39 What a 1930s lifter would recognise today 31:33 Silver Era training and the pre-steroid physique 39:18 When anabolic steroids entered strength sports 43:01 How steroids changed training 49:18 Single-set and high-intensity training 52:49 The history of women in strength 59:53 Where “toning” and light weights for women came from 01:06:15 What Conor takes from strength-training history 01:11:23 Where to learn more Dr Conor Heffernan Ulster University: https://www.ulster.ac.uk/staff/c-heffernan Physical Culture Study: https://physicalculturestudy.com/ Physical Culture Study Substack: https://physicalculture.substack.com/ Books The History of Physical Culture: https://cgscholar.com/publishers/books/the-history-of-physical-culture When Fitness Went Global: https://www.bloomsbury.com/us/when-fitness-went-global-9781350500785/ Dr Tony Boutagy / Stronger With Time Website: https://tonyboutagy.com/ Explore Tony’s courses: https://tonyboutagy.com/explore-the-courses-page Instagram: https://www.instagram.com/tonyboutagy/ This episode is for general educational purposes only and is not intended as individualised exercise advice.

VO2 max matters, but what else determines endurance, and how should you train for it? In this episode of Stronger With Time, I sit down with Professor Andy Jones to explore where zone two and intervals fit, what elite endurance athletes can teach us, and what this means for training, performance and healthy ageing. Andy is Professor of Applied Physiology at the University of Exeter and one of the world's leading endurance physiologists. He served as a scientific editor on Nike's Breaking2 project, worked with marathon world-record holder Paula Radcliffe for more than a decade, and has helped shape research on critical power, dietary nitrate and physiological resilience. In this episode: What VO2 max can and cannot tell you about endurance Where zone two fits within aerobic training Whether you should avoid the middle ground between easy work and hard intervals How Andy approaches intervals for improving VO2 max How to combine aerobic training with three weekly strength sessions Whether men and women need different endurance training What Breaking2 and Paula Radcliffe reveal about endurance beyond VO2 max What Andy's research shows about nitrate, beetroot and carbohydrate fuelling Resources: Professor Andy Jones University of Exeter academic profile: https://experts.exeter.ac.uk/1327-andy-jones University of Exeter Sports Physiology & Exercise Testing: https://sites.exeter.ac.uk/spet/meet-the-team/ Dr Tony Boutagy / Stronger With Time Website: https://tonyboutagy.com/ Explore Tony's courses: https://tonyboutagy.com/explore-the-courses-page Instagram: https://www.instagram.com/tonyboutagy/ Follow Stronger With Time for more evidence-informed conversations on training, health and performance. This episode is for general educational purposes only and is not a training prescription or medical advice.

Two people can have similar muscle mass and very different levels of strength. What accounts for the difference? In this episode of Stronger With Time, Tony speaks with Professor Paul Comfort, one of the world’s leading strength and conditioning researchers, about what influences strength beyond muscle size, and what that means for training. Paul is Professor of Strength and Conditioning at the University of Salford in the UK, where he leads the Master of Strength and Conditioning program. He also holds an adjunct professorship at Edith Cowan University in Western Australia. His research focuses on strength training, force production and the assessment of physical performance. In this episode, they discuss: How strength is assessed, and whether a true one-repetition maximum is as fatiguing as people think Whether bar speed matters as much as intent When slow, controlled reps help, and when they may not How psychology and neural inhibition can affect strength expression What stability and unilateral work can reveal about a weak link Why lowering a weight is different from lifting it What happens when training frequency changes but weekly volume stays the same, and whether microdosing works Whether strength, hypertrophy and power should be trained together or emphasised at different times How strength training priorities change with age Professor Paul Comfort University of Salford https://www.salford.ac.uk/our-staff/paul-comfort ResearchGate https://www.researchgate.net/profile/Paul-Comfort Google Scholar https://scholar.google.com/citations?user=xukgqDQAAAAJ&hl=en ORCID https://orcid.org/0000-0002-1131-8626 Instagram https://www.instagram.com/paulcomfort1975/ X https://x.com/PaulComfort1975 Books Advanced Strength and Conditioning https://www.routledge.com/Advanced-Strength-and-Conditioning-An-Evidence-based-Approach/Turner-Comfort/p/book/9780367491352 Performance Assessment in Strength and Conditioning https://www.routledge.com/Performance-Assessment-in-Strength-and-Conditioning/Comfort-Jones/p/book/9781032831497 Laboratory Manual for Strength and Conditioning https://www.routledge.com/Laboratory-Manual-for-Strength-and-Conditioning/Miller-Comfort-McMahon/p/book/9781032033259 NSCA Developing Power https://us.humankinetics.com/products/developing-power-2nd-edition Dr Tony Boutagy / Stronger With Time Website https://tonyboutagy.com/ Courses https://tonyboutagy.com/explore-the-courses-page Weak Links in Movement https://tonyboutagy.com/weak-links-movement-full-course Instagram https://www.instagram.com/tonyboutagy/ Follow Stronger With Time for more evidence-informed conversations on training, health and performance. This episode is for general educational purposes only and is not intended as individualised exercise advice.

Most of the attention in training goes to the workout itself. But what happens after the workout that determines the result you get from it? In this episode of Stronger With Time, Tony speaks with Professor John Hawley, one of the most influential figures in exercise metabolism, about what four decades of research can teach us about how we train, fuel and recover. John is a Distinguished Professor at Australian Catholic University in Melbourne, where he directs the Centre for Human Metabolism and Performance. His research spans how exercise and diet regulate fat and carbohydrate metabolism in skeletal muscle, the molecular basis of training adaptation, circadian biology and nutrient timing, and how exercise improves insulin action. John helped run some of the pioneering interval-training studies in Cape Town in the 1990s and has spent the decades since studying the mechanisms behind how training works. In this episode: What happens inside the muscle after the workout ends How short, hard intervals compare with longer intervals for improving VO₂max and performance What high-intensity training does differently from steady-state exercise How often to go hard, and where lower-intensity training fits Why carbohydrate availability matters when the work gets hard When training with low carbohydrate availability may have a place What the carbohydrate mouth rinse reveals about the brain’s role in performance Concurrent training, the interference effect and when it matters How exercise changes insulin sensitivity and glucose disposal What John’s research on time-restricted eating is finding Whether sex meaningfully changes the metabolic response to exercise Where the search for an exercise mimetic stands How John thinks about consistency, recovery and making exercise a priority This conversation is for anyone who wants to train with more intent and understand what is driving the results. Resources Professor John Hawley ACU profile: https://www.acu.edu.au/research-and-enterprise/our-research-institutes/mary-mackillop-institute-for-health-research/our-people/professor-john-hawley Research and publications: https://scholar.google.com/scholar?q=%22John+Hawley%22+exercise+metabolism On PubMed: https://pubmed.ncbi.nlm.nih.gov/?term=Hawley+JA+exercise+metabolism Book: Peak Performance: Training and Nutritional Strategies for Sport, by John Hawley and Louise Burke https://books.google.com/books/about/Peak_Performance.html?id=3P5qQgAACAAJ Dr Tony Boutagy / Stronger With Time Website: https://tonyboutagy.com/ Explore Tony’s courses: https://tonyboutagy.com/explore-the-courses-page Instagram: https://www.instagram.com/tonyboutagy/ Subscribe to Stronger With Time for more evidence-informed conversations on training, health and performance. This episode is for general educational purposes only and is not intended as individualised exercise or nutrition advice.

How many sets should you do? How often should you train a muscle? How close to failure should you go? Before answering any of those questions, I want to know what the program is trying to achieve and what the person can recover from. In this episode of Stronger With Time, I'm resharing a conversation I had with Ariel and Matt from Raise the Bar about the way I think about exercise programming after more than 30 years of coaching and studying exercise science. We start with how I moved from endurance sport into strength and conditioning, why I have remained a student of the field, and what decades of coaching have taught me about translating research into practice. From there, we get into the programming questions that matter in the gym, including several areas where I have changed my mind. We discuss: Why the goal and the person’s ability to recover come before sets and reps Why the first sets of an exercise appear to give the most benefit, what my new meta-analysis changed about how quickly returns diminish, and what that means for how much you do Why strength and hypertrophy are related, but not the same adaptation Why mechanical tension is central to muscle growth What soreness, muscle damage and metabolic stress do, and do not, tell us about hypertrophy Rep ranges, proximity to failure and muscle fibre recruitment Exercise selection and why some muscles benefit from biomechanically different movements Training frequency versus doing more volume in one session Why I often favour total-body training two or three times per week How I approach strength training for women who want to get stronger without maximising muscle size How long to keep a program and why changing exercises too quickly can matter Progressive overload, periodisation and where the evidence is still developing Where research can guide programming and where coaching judgement still matters Why I'd question any program that needs a deload, and what a drop in performance is actually telling you This conversation is for coaches, trainers and serious lifters who want to make better programming decisions without reducing exercise science to a set of universal rules. I am building a short course on the science of hypertrophy: I'm building a short course on the science of hypertrophy. Over the past year I've reviewed the hypertrophy research in full and spoken with many of the researchers behind it on this podcast, and that work has changed a few things about how I program for muscle. The short course covers exactly those changes. Join the interest list to be the first to hear when it opens: https://go.tonyboutagy.com/register-you-interest-page If you want the complete foundation on program design, that is Advanced Program Mastery. After all of this work, very little in it has needed to change: https://tonyboutagy.com/advanced-program-mastery-course-page

When you raise your arm, which muscles produce the movement, and which keep the shoulder stable enough for it to happen? In this episode of Stronger With Time, I speak with Professor Donald Neumann, PT, PhD, FAPTA, about how muscles produce, control and stabilise movement as part of a coordinated system, using the shoulder as the primary example. Don is Professor Emeritus of Physical Therapy at Marquette University and the author of Neumann’s Kinesiology of the Musculoskeletal System. We discuss: What it means for a muscle to be functioning well Why few muscles perform a meaningful action independently How muscular force couples produce and control movement Why the shoulder’s mobility places greater demands on muscular control How the deltoid and rotator cuff share the work of raising the arm How the serratus anterior and trapezius contribute to scapular movement What the commonly cited two-to-one scapulohumeral rhythm describes When scapular dyskinesis may warrant closer attention Why external-rotation strength depends partly on the muscles anchoring the scapula Whether the lower trapezius and serratus anterior should be trained separately or within larger movements How anatomical variation influences the way we assess the shoulder and hip What Don’s current research may reveal about the actions of individual scapular muscles This conversation is for coaches, trainers, physiotherapists and serious lifters who want a clearer understanding of what produces, controls and stabilises shoulder movement, and what this means for assessment and training. See how these principles apply to movement assessment and program design in Weak Links & Movement: https://tonyboutagy.com/weak-links-movement-full-course Professor Donald Neumann Marquette University profile:https://www.marquette.edu/physical-therapy/directory/donald-neumann.php Neumann’s Kinesiology of the Musculoskeletal System, Fourth Edition:https://shop.elsevier.com/books/neumann-s-kinesiology-of-the-musculoskeletal-system/neumann/978-0-323-71859-2 Review of the serratus anterior:https://pubmed.ncbi.nlm.nih.gov/30737019/ Review of the trapezius:https://pubmed.ncbi.nlm.nih.gov/30797676/ Professor Neumann’s publications on PubMed:https://pubmed.ncbi.nlm.nih.gov/?term=Neumann+DA%5BAuthor%5D Tony Boutagy / Stronger With Time Website:https://tonyboutagy.com/ Explore the courses:https://tonyboutagy.com/explore-the-courses-page Instagram:https://www.instagram.com/tonyboutagy/ Apple Podcasts:https://podcasts.apple.com/us/podcast/stronger-with-time/id1815428150 Spotify:https://open.spotify.com/show/5Yydg6y3dA8OiA8hyHcJON

How close to failure do you need to train to build muscle? And how accurately can you judge how many repetitions you still have in reserve? In this episode of Stronger With Time, I speak with Dr Martin Refalo about how accurately lifters can judge repetitions in reserve, how close to failure a set needs to be, and when training to failure may be useful. Martin is Co-Owner and Education Manager at JPS Health & Fitness. He holds a PhD in Exercise Science, has authored multiple peer-reviewed publications and has more than a decade of practical coaching experience. Proximity to failure and its relationship with hypertrophy, fatigue and discomfort have been central areas of his research. We discuss: Why lifters can misjudge how close they are to failure How to develop a more accurate sense of repetitions in reserve How close to failure Martin generally recommends training When recording a set may help calibrate effort How fatigue across a session can affect performance When training to failure may be more appropriate in lower-volume programmes Whether load and repetition range affect muscle growth Why higher-repetition sets can be more difficult to judge What the evidence suggests about sex differences in fatigue, recovery and hypertrophy Whether women require fundamentally different resistance-training programmes How Martin designs studies around practical training questions This conversation is for coaches and serious lifters who want to prescribe effort with greater accuracy and understand how proximity-to-failure research applies in the gym. Timestamps: 00:05 Introduction to Dr. Martin Rafalo and His Expertise 01:03 Exploring Resistance Training and Training to Failure 01:31 Practical Applications of Exercise Science 01:56 Introduction and guest introduction 02:30 Why study training to failure? The research focus 05:10 Context-dependent nature of training intensity 08:39 The strike zone: 2 reps shy of failure 09:45 Is it worth pushing to true failure? Practical tips 12:02 Perception of effort and actual proximity to failure 13:46 Muscle tension, fatigue, and hypertrophy mechanisms 18:04 Monitoring progress and fatigue through performance 20:40 Fatigue impact across sessions and exercises 25:17 Research findings on proximity to failure and growth 27:31 Programming considerations: volume, load, and recovery 30:54 Training to failure in beginners vs. advanced 33:42 Sex differences in fatigue and recovery 36:25 Applying science to coaching practice 47:04 Designing research studies in exercise science 51:05 Within-subject vs. group studies on failure 54:08 Gender responses to resistance training 58:22 Hormonal influences and muscle growth in females 01:01:27 Bridging science and coaching practice 01:05:10 Program design for different athlete goals 01:08:10 Program duration and auto-regulation 01:10:26 Where to find more about Martin Refalo Dr Martin Refalo Instagram: https://www.instagram.com/mrfitness__/ JPS profile: https://www.jpshealthandfitness.com.au/team/martin-refalo/ JPS Education: https://www.instagram.com/jps_education/ JPS Health & Fitness: https://www.jpshealthandfitness.com.au/ JPS YouTube: https://www.youtube.com/channel/UCi6aTw95QXJHjv8ucdxnL7Q Tony Boutagy / Stronger With Time Website: https://tonyboutagy.com/ Explore Tony’s courses: https://tonyboutagy.com/explore-the-courses-page Instagram: https://www.instagram.com/tonyboutagy/ Subscribe to Stronger With Time for more evidence-informed conversations on training, health and performance. This episode is for general educational purposes only and is not a substitute for individualised training advice.

There is a lot of conflicting advice about how women should train and fuel through midlife. Should they prioritise high-intensity work over Zone 2? Train around the menstrual cycle? Cut back on carbohydrates? In this episode of Stronger With Time, I speak with Rachel Neylan, Olympic cyclist, world championship silver medallist, physiotherapist and high-performance coaching psychologist. We discuss under-fuelling and carbohydrate fear, bone health after years of cycling, and whether Zone 2 is really overrated for women. Rachel explains why the aerobic base that supported her professional career also helped her absorb harder training and recover from it. We also talk about training around the menstrual cycle without rigid rules, rebuilding after serious injury, the difference between motivation and identity, and creating systems around training, nutrition, sleep, recovery and community. This conversation is for women who want to stay strong, fit and capable through midlife, and for the coaches and health professionals who work with them. Timestamps 00:00 Introduction 01:40 Rapid-fire cycling questions 06:30 Leaving physiotherapy for professional cycling 09:45 Matching your physiology to the right sport 14:15 Why children need variety before specialisation 17:00 Movement variety for healthy ageing 19:25 What endurance sport teaches you about doing hard things 21:40 Motivation versus identity 24:35 Training after retiring from professional sport 26:15 Bone density and the hidden cost of cycling 29:25 Recovering from a major crash 33:15 Resilience and training around injury 37:30 Under-fuelling and fear of carbohydrate 42:45 Fuelling around a one-hour training session 44:55 Why every workout should not be hard 47:15 Is Zone 2 overrated for women? 52:00 Why an aerobic base supports high-intensity training 55:05 Female physiology and training differences 57:50 Menstrual-cycle tracking without rigid rules 01:01:25 Building a personal performance ecosystem 01:04:00 Rachel’s current work in performance coaching 01:06:20 Closing thoughts Resources Rachel Neylan’s websitehttps://www.rachelneylan.com/ Rachel Neylan’s Australian Olympic profilehttps://www.olympics.com.au/olympians/rachel-neylan/ Tony’s websitehttps://tonyboutagy.com/ Explore Tony’s courseshttps://tonyboutagy.com/explore-the-courses-page Follow Tony on Instagramhttps://www.instagram.com/tonyboutagy/ Subscribe to Stronger With Time for more evidence-informed conversations on training, health and performance. This episode is for general educational purposes only and does not constitute medical advice.

Static stretching before training is one of the most debated habits in the gym. For years, many coaches were told to avoid it because it could impair performance. But as Professor Dave Behm explains in this episode of Stronger With Time, the real answer is more nuanced than simply saying stretching is good or bad. Dave is a university research professor in the School of Human Kinetics and Recreation at Memorial University of Newfoundland, and one of the most cited neuromuscular scientists in the world. His work directly inspired Tony’s own PhD on stretching back in 2003. In this conversation, Tony and Dave discuss when stretching before training may help, when it may be unnecessary, and why around 60 seconds total per muscle group tends to be a useful guideline when stretching is included in a warm-up. From there, the conversation opens into many of the practices coaches and trainers use every day: foam rolling, full-range resistance training for mobility, post-activation potentiation, unstable surface training, unilateral versus bilateral work, the bilateral deficit, and how movement speed shapes power and training intent as we age. Timestamps 00:00 Introduction and Professor Dave Behm’s influence on Tony’s PhD 02:00 Dave’s background and why he started testing common training practices 06:00 The question behind Dave’s career: does it actually work? 07:00 How Dave’s view on stretching changed over time 09:30 Static stretching, performance impairments and context 10:30 Why 60 seconds per muscle group is a useful guideline 12:00 How to use stretching inside a warm-up 13:30 Foam rolling before static stretching 14:30 General warm-ups and tissue viscoelasticity 16:00 Do you need stretching before resistance training? 17:00 Full-range resistance training as loaded mobility work 18:00 Stretching for tight areas before lifting 20:00 Foam rolling, range of motion and where it came from 21:30 Foam rolling versus static stretching over time 24:00 Why stiff and flexible clients respond differently 25:30 How often to stretch for flexibility 27:00 How long to stretch outside a training session 28:00 How far should a stretch be taken? 29:30 Static stretching versus dynamic stretching and mobility work 31:00 Post-activation potentiation and post-activation performance enhancement 34:30 How to use a heavy warm-up set in training 36:30 Isometrics and potentiation 37:30 How long the potentiation effect lasts 38:30 Unstable surface training and muscle recruitment 40:00 Why unstable training reduces load 42:00 Where unstable surface training may still be useful 43:30 Strength and hypertrophy under stable versus unstable conditions 45:00 Trained lifters and instability 46:30 Unilateral versus bilateral training 47:30 The bilateral deficit explained 49:30 Why unilateral work may matter more in trained people 51:00 How the brain organises movement and intent 55:00 Movement speed, motor unit recruitment and rate coding 56:30 Slow versus explosive lifting intent 58:00 Power, speed and ageing 58:30 Dave’s book on stretching 01:00:00 Closing thoughts Resources Professor Dave Behm Professor Dave Behm research and publications https://scholar.google.com/scholar?q=%22David+Behm%22+stretching Professor Dave Behm on PubMed https://pubmed.ncbi.nlm.nih.gov/?term=David+Behm+stretching Stretching and performance research https://scholar.google.com/scholar?q=Behm+static+stretching+performance Foam rolling and range of motion research https://scholar.google.com/scholar?q=Behm+foam+rolling+range+of+motion Unstable surface training research https://scholar.google.com/scholar?q=Behm+unstable+surface+training Tony Tony’s courses https://tonyboutagy.com/explore-the-courses-page Tony on Instagram https://www.instagram.com/tonyboutagy/ Subscribe to Stronger With Time for more evidence-informed conversations on training, health and performance. All content is for general educational purposes only and is not intended as medical advice.

If you train for hypertrophy, you are probably not short on advice. The harder part is knowing which advice is worth trusting. In this episode of Stronger With Time, Tony speaks with Dr Gerard McMahon, a muscle physiology and biomechanics researcher and applied practitioner who has worked with elite athletes across Olympic, Para Games and Commonwealth Games environments. Gerard brings together research and applied practice: what drives muscle growth, and what that means when you are programming for real people over months and years. Together, Tony and Gerard work through some of the most common claims in hypertrophy training, from mechanical tension and effective reps to volume, activation drills, lengthened partials, periodisation and tendon training. In this episode, they discuss: Why research and real-world coaching both matter What actually triggers muscle hypertrophy Mechanical tension, muscle damage and metabolic stress Why “effective reps” and “stimulating reps” are often misunderstood How training volume should change with training status Why more sets in one session are not always better What muscle activation drills can and cannot do Lengthened partials, lengthened range and where they may be useful Why lengthened training does not apply equally to every muscle Social media echo chambers in hypertrophy advice Periodisation and long-term programming for muscle and strength Tendon training, tendon stiffness and high mechanical loading This conversation is for coaches, personal trainers and experienced lifters who want to think more clearly about hypertrophy training and build programs from principles rather than trends. Timestamps 00:00 Introduction and the social media problem in hypertrophy advice 00:55 Dr Gerard McMahon’s background in sport science, research and elite sport 04:00 Research, coaching and how to judge training advice 06:00 Short-term hypertrophy studies versus long-term programming 08:35 Training volume claims and real-world constraints 10:10 What actually triggers muscle hypertrophy? 13:40 Mechanical tension, load and training to failure 15:30 Proximity to failure and motor unit recruitment 17:20 Effective reps and stimulating reps 21:20 Training volume and training status 23:40 Beginner versus advanced weekly volume 25:10 Signs you may be doing too much volume 26:40 Frequency and dividing weekly training volume 29:40 Muscle activation drills and warm-ups 33:30 Glute activation drills and warm-up specificity 35:20 Habitual movement patterns and activation drills 37:45 Lengthened partials and lengthened range 40:30 Which muscles benefit from lengthened range? 44:30 Quads, hamstrings, calves and lengthened work 47:45 Glutes and the best range for hip thrusts 48:45 Social media echo chambers in hypertrophy 51:00 Neuromechanical matching and exercise selection 53:30 Drop sets, supersets and overload techniques 56:10 Periodisation for hypertrophy and strength 58:25 How long to stay on a program 59:30 Tendon training, tendon stiffness and high mechanical loading 01:02:45 How to learn more from Dr Gerard McMahon Resources: Dr Gerard McMahon research and publications https://scholar.google.com/scholar?q=%22Gerard+McMahon%22+hypertrophy Dr Gerard McMahon on PubMed https://pubmed.ncbi.nlm.nih.gov/?term=%22Gerard%20McMahon%22%20hypertrophy Lengthened partials and hypertrophy research https://scholar.google.com/scholar?q=lengthened+partials+hypertrophy+McMahon No Strain, No Gain tendon research search https://scholar.google.com/scholar?q=%22No+Strain%2C+No+Gain%22+tendon+McMahon Neuromechanical matching review search https://scholar.google.com/scholar?q=Hudson+Gandevia+Butler+2019+neuromechanical+matching Tony’s website https://tonyboutagy.com/ Tony on Instagram https://www.instagram.com/tonyboutagy/ Subscribe to Stronger With Time for more evidence-informed conversations on training, health and performance. All content is for general educational purposes only and is not intended as medical advice.

Training hard may have built your fitness. But should you keep training the same way as you age? In this episode of Stronger With Time, Tony speaks with Dr Peter Reaburn, a researcher, author and lifelong masters athlete who has spent decades studying performance and ageing. Peter is a retired Professor and former Head of Exercise and Sport Science at Bond University. He has authored and edited multiple books on masters athletes, published peer-reviewed research on masters athletes, and continues to work closely with the masters sporting community. He also practises what he teaches. Peter was the Australian Ironman Triathlon Champion in the 50–54 age group in 2005 and is the current Australian Masters Swimming Champion in the 70–74 years 400m individual medley. At 71, Peter brings both the research and lived experience to the question of how to keep training for strength, power and endurance as recovery and physical capacities begin to change. In this episode: Which aspects of fitness decline fastest with age Why older endurance athletes still need resistance and sprint training The role of fast-twitch muscle fibres in later-life performance How to balance hard sessions with lower-intensity work The hard-easy principle and the 80/20 approach Atrial fibrillation risk in lifelong endurance athletes Protein and recovery needs as we age Menopause and the research gap in female masters athletes When to replace a planned hard session with active recovery The physical, cognitive, psychological and social sides of successful ageing This conversation is for coaches, masters athletes and active adults who still care about performance, but recognise that training harder is not always the same as training better. Timestamps 00:00 What fitness means across the lifespan 01:45 How strength, power and endurance decline with age 04:00 What masters athletes teach us about ageing 06:20 Why older athletes need resistance training 09:45 Fast-twitch muscle fibres and endurance performance 11:20 What we know about hybrid masters athletes 12:35 Menopause, muscle mass and performance 16:00 The research gap in female masters athletes 18:40 Continuous athletes, rekindlers and late bloomers 20:20 The hard-easy principle 22:00 Atrial fibrillation and endurance training 24:15 Why high-intensity-only training lacks nuance 27:10 The 80/20 approach to endurance training 30:10 Muscle protein synthesis as we age 31:50 How much protein older athletes may need 35:10 Why recovery changes with age 39:40 High-intensity training and neural fatigue 41:10 Listening to your body and changing the session 43:20 Active recovery versus complete rest 44:20 Flexibility and maintaining range of motion 46:30 The four domains of successful ageing 51:30 Peter’s books and work on masters athletes Resources The Masters Athlete by Dr Peter Reaburn https://books.google.com/books?q=%22The+Masters+Athlete%22+%22Peter+Reaburn%22 Nutrition and Performance in Masters Athletes, edited by Dr Peter Reaburn https://www.routledge.com/search?kw=Nutrition%20and%20Performance%20in%20Masters%20Athletes Peter Reaburn’s research and publications https://scholar.google.com/scholar?q=%22Peter+Reaburn%22 Tony’s website https://tonyboutagy.com/ Tony’s courses https://tonyboutagy.com/explore-the-courses-page Tony on Instagram https://www.instagram.com/tonyboutagy/ Stronger With Time on Apple Podcasts https://podcasts.apple.com/us/podcast/stronger-with-time/id1815428150 Stronger With Time on Spotify https://open.spotify.com/show/5Yydg6y3dA8OiA8hyHcJON Subscribe to Stronger With Time for more conversations on evidence-informed training, health and performance. All content is for general educational purposes only and is not intended as medical advice.

🌐 Visit → tonyboutagy.com 📲 Follow us on Instagram → @tonyboutagy The principles that drive adaptation in the world's best endurance athletes are the same principles that drive adaptation in people who train seriously but are not competing. The application changes. The fundamentals do not. Dr Dan Plews is an applied sports scientist, coach and world-class endurance athlete. He holds a doctorate in applied heart rate variability from Auckland University of Technology, has coached athletes to more than 30 world and Olympic titles, and has set records at both the Ironman World Championship and in HYROX. In this episode, we discuss: Why the gap between elite endurance science and everyday training is smaller than most people think. The framework Dr Plews uses with Olympic athletes, identifying the gap between current capacity and the target and then designing training to close it, applies equally to someone training six hours a week for health and longevity. Whether the concurrent training interference effect actually matters for non-athletes. Dr Plews explains that while the interference effect is real, it primarily matters at the highest levels of performance. For most people training six or fewer hours a week, getting the work done in a recovered state matters more than the sequencing of strength and endurance sessions. What zone two training actually is and where the common misconceptions come from. Zone two is defined by physiological markers, not by feel or a percentage of maximum heart rate, and most people who think they are training in zone two are working considerably harder than the research supports. How heart rate variability reflects the state of the autonomic nervous system and why it is one of the most useful tools available for managing training load and recovery. Dr Plews explains how to interpret HRV trends over time, what a suppressed morning reading actually tells you, and how to use it to make better daily training decisions. How low carbohydrate approaches and fueling strategies affect endurance adaptation, why metabolic flexibility matters for both performance and long-term health, and what the evidence shows about carbohydrate availability during training and competition. Why Dr Plews shifted his focus from long-course triathlon to HYROX, and what that shift reflects about building a broader fitness base for longevity rather than optimising for a single performance output. Key insight: Elite endurance athletes succeed by applying the right stimulus at the right time and recovering properly between sessions. That principle does not change when you have six hours a week instead of thirty. The gap between what the best coaches in the world know and what everyday people apply is smaller than it looks, and this episode closes it. Topics: zone two training, concurrent training, interference effect, heart rate variability, HRV, endurance training, polarised training, low carbohydrate training, metabolic flexibility, fueling for endurance, HYROX, triathlon, longevity and exercise, training load management, strength and endurance, applied sports science

Female athlete health is often discussed in extremes: either physiology is underplayed, or every difference gets turned into a rule. This conversation sits in the middle, where evidence, clinical context and nuance matter. In this episode of Stronger With Time, Tony speaks with Dr Kathryn “Kate” Ackerman, a former elite rower, sports medicine physician, endocrinologist and leading researcher in female athlete health. Kate’s work sits at the intersection of sport, medicine, endocrinology and performance. She explains how her own experience as an athlete shaped her career, why the data gap in female athletes still matters, and how better research can improve both health and performance. Tony and Kate discuss RED-S, low energy availability, menstrual dysfunction, bone stress injuries, fueling, carbohydrate availability, hormone therapy, menopause, and how to think about female athlete health without turning every difference into a rule. They also explore the nuance often missing from online discussions: not every calorie deficit is RED-S, not every female athlete needs a bespoke training plan based on physiology alone, and the goal is not to create fear, but to understand what the evidence can and cannot tell us. In this episode, they cover: The evolution from the Female Athlete Triad to RED-S What low energy availability means, and when it becomes a problem Why RED-S requires clinical nuance, not just symptom counting Screening tools, clinical markers and medical context Bone stress injuries, DEXA, HR-pQCT and delayed bone recovery Transdermal estrogen, oral contraceptives and bone health in amenorrheic athletes Adolescent athletes, loading, fueling, calcium, vitamin D and stress injury risk Carbohydrate availability, meal timing and recovery Menopause, HRT and the gaps still left in women’s health research Why female physiology matters, without turning everything into a sex-specific rule This conversation is for coaches, clinicians, female athletes, parents of young athletes, and active women who want a clearer, evidence-informed understanding of female athlete health. Resources: WHSP Institute: https://whspinstitute.org/WHSP Medical: https://www.whspmedical.com/Dr Kate Ackerman bio: https://www.whspmedical.com/dr-kate-ackermanIOC REDs CAT2 / BJSM article: https://bjsm.bmj.com/content/57/17/1068Dr Kate Ackerman Instagram: https://www.instagram.com/drkateackerman/WHSP Institute Instagram: https://www.instagram.com/whsp_institute/ Tony’s website: https://tonyboutagy.com/Tony Instagram: https://www.instagram.com/tonyboutagy/ All content is for general educational purposes only and is not intended as medical advice.

If you train for hypertrophy, you are probably not short on advice. The harder part is knowing which advice is worth trusting. In this episode of Stronger With Time, Tony speaks with Dr Gerard McMahon, a muscle physiology and biomechanics researcher and applied practitioner who has worked with elite athletes across Olympic, Para Games and Commonwealth Games environments. Gerard brings together research and applied practice: what drives muscle growth, and what that means when you are programming for real people over months and years. Together, Tony and Gerard work through some of the most common claims in hypertrophy training, from mechanical tension and effective reps to volume, activation drills, lengthened partials, periodisation and tendon training. In this episode, they discuss: Why research and real-world coaching both matter What actually triggers muscle hypertrophy Mechanical tension, muscle damage and metabolic stress Why “effective reps” and “stimulating reps” are often misunderstood How training volume should change with training status Why more sets in one session are not always better What muscle activation drills can and cannot do Lengthened partials, lengthened range and where they may be useful Why lengthened training does not apply equally to every muscle Social media echo chambers in hypertrophy advice Drop sets, supersets and high-fatigue methods Periodisation and long-term programming for muscle and strength This conversation is for coaches, personal trainers and experienced lifters who want to think more clearly about hypertrophy training and build programs from principles rather than trends. Timestamps 00:00 Introduction and the social media problem in hypertrophy advice 00:55 Dr Gerard McMahon’s background in sport science, research and elite sport 04:00 Research, coaching and how to judge training advice 06:00 Short-term hypertrophy studies versus long-term programming 08:35 Training volume claims and real-world constraints 10:10 What actually triggers muscle hypertrophy? 13:40 Mechanical tension, load and training to failure 15:30 Proximity to failure and motor unit recruitment 17:20 Effective reps and stimulating reps 21:20 Training volume and training status 23:40 Beginner versus advanced weekly volume 25:10 Signs you may be doing too much volume 26:40 Frequency and dividing weekly training volume 29:40 Muscle activation drills and warm-ups 33:30 Glute activation drills and warm-up specificity 35:20 Habitual movement patterns and activation drills 37:45 Lengthened partials and lengthened range 40:30 Which muscles benefit from lengthened range? 44:30 Quads, hamstrings, calves and lengthened work 47:45 Glutes and the best range for hip thrusts 48:45 Social media echo chambers in hypertrophy 51:00 Neuromechanical matching and exercise selection 53:30 Drop sets, supersets and overload techniques 56:10 Periodisation for hypertrophy and strength 58:25 How long to stay on a program 59:30 Tendon training, tendon stiffness and high mechanical loading 01:02:45 How to learn more from Dr Gerard McMahon Resources: Dr Gerard McMahon research and publications https://scholar.google.com/scholar?q=%22Gerard+McMahon%22+hypertrophy Dr Gerard McMahon on PubMed https://pubmed.ncbi.nlm.nih.gov/?term=%22Gerard%20McMahon%22%20hypertrophy Lengthened partials and hypertrophy research https://scholar.google.com/scholar?q=lengthened+partials+hypertrophy+McMahon No Strain, No Gain tendon research search https://scholar.google.com/scholar?q=%22No+Strain%2C+No+Gain%22+tendon+McMahon Neuromechanical matching review search https://scholar.google.com/scholar?q=Hudson+Gandevia+Butler+2019+neuromechanical+matching Tony’s website https://tonyboutagy.com/ Tony on Instagram https://www.instagram.com/tonyboutagy/ Subscribe to Stronger With Time for more evidence-informed conversations on training, health and performance. All content is for general educational purposes only and is not intended as medical advice.