Iron Culture presented by MASS

Trexler and Helms dig into training frequency and hypertrophy, prompted by a wave of recent discussion and two new papers: a new original study comparing three weekly sessions of three sets against one session of nine, and a new preprint from an independent research team utilizing the openly available data from Pelland's previously published meta-regression. They trace the long history of the frequency debate (including Helms's own shifting position), review where the science had settled, and put the current online discourse and the reanalysis under the microscope. The back half turns practical: a state-of-the-science recap, higher frequency as a tool for distributing volume and managing fatigue, and "zigging where the data zags," with a personal example of practical application. Join us for new episodes of Iron Culture, Tuesdays at 5:30 pm eastern time! Be sure to use code "MRR10" for 10% off your order at elitefts.com Iron Culture is proudly presented by the MASS Research Review massresearchreview.com Chapters 0:00 Intro & business 5:30 Tonight's topic: frequency & hypertrophy 8:54 A history of the frequency debate 21:19 Where the science had settled 29:33 The new claim & study under the microscope 42:39 The state of the science 56:24 Distributing volume & managing fatigue 1:04:52 Zigging where the data zags (a practical application) 1:18:32 Wrap-up

This episode looks at bodybuilding before steroids became widespread, arguing that the era is far more useful (and more complicated) than the usual "pure, simple, natty golden age" story. Drs Eric Helms and Conor Heffernan break down how strength sport, judging standards, gym access, and culture shaped physiques from the 1940s through the 1950s. The big takeaway is that early bodybuilding was not a direct comparison to modern natural bodybuilding. The sport was tied to Olympic weightlifting, evaluated with very different criteria, and influenced by training tools and social norms that changed the entire game. Catch new Iron Culture episodes every Tuesday at 5:30 pm eastern time! Be sure to use code "MRR10" for 10% off your order at elitefts.com Iron Culture is proudly presented by the MASS Research Review massresearchreview.com Chapters 0:00 Intro 5:20 The "pre-steroid era" myth 13:48 Using history to break the rules 15:22 When did steroids actually arrive? 29:13 Were the silver-era physiques natural? 32:11 What the average lifter really looked like 39:33 Why old physiques look so different 43:02 Photography before Photoshop 51:37 Inside the Mr. America contest 1:05:27 Training shifts & the Weider–Hoffman rivalry 1:09:21 Equipment & accessibility 1:21:24 Why training volume was limited 1:22:41 The machine age changes everything 1:31:43 How your entry point shapes you 1:37:05 Lessons from the pre-steroid era 1:42:36 The "banned" lifts that were once normal 1:44:50 Wrap-up

In this episode, Eric Helms and Eric Trexler share their current approaches to diet, training, and supplementation, emphasizing pragmatic strategies, individualization, and the importance of evidence-based practice. They discuss how constraints, habits, and intrinsic motivation shape their approaches to fitness, offering valuable insights for both athletes and everyday lifters. Catch new Iron Culture episodes every Tuesday at 5:30 pm eastern time! Be sure to use code "MRR10" for 10% off your order at elitefts.com Iron Culture is proudly presented by the MASS Research Review massresearchreview.com Chapters 00:00 Introduction and episode overview 00:04 Introduction to current fitness and diet approaches 02:13 Eric Helms discusses his role as co-director at Sprints 04:00 The importance of legacy and impact in fitness and research 06:04 Transition to practical training and nutrition strategies 10:45 Current training routines and scheduling challenges 16:05 Training volume, frequency, and adaptation 22:44 Fasted training, resilience, and human adaptability 26:16 Frequency and assessment of deloads 31:32 Personal training journeys and health challenges 36:38 Training habits, constraints, and optimizing within limits 43:20 Philosophy of motivation, identity, and long-term adherence 50:49 Balancing evidence-based principles with real-world constraints 51:46 Eric Helms discusses his current diet and body composition 52:13 The importance of a holistic approach to dieting 52:25 Adjustments in diet based on body composition and goals 53:24 Caloric intake and daily habits 55:23 Meal structure and food choices 57:20 Flexible eating and meal planning 58:55 Strategies for gaining or losing weight 01:02:03 Impact of medication and food addiction on eating behavior 01:04:51 Behavioral strategies during extreme dieting 01:07:37 Supplements and their role in performance and health 01:19:15 Cardio, step counts, and cardiovascular health 01:24:34 Training adaptations and managing physical constraints 01:29:17 Balancing resistance training, cardio, and lifestyle constraints 01:34:05 Final thoughts on personalized, evidence-based practice

In this episode, Eric Helms and Richard Collins explore the art and science of coaching, emphasizing the importance of motivation, rapport, and tailored strategies in achieving long-term success in fitness and bodybuilding. In this episode, Richard shares his extensive experience in physique sport coaching, mental performance training, and how athletes and coaches can optimize their mindset and preparation for peak performance. Check out Richard's instagram (richard_collinscoach) to stay up to date with his work. Catch new Iron Culture episodes every Tuesday at 5:30 pm eastern time! Be sure to use code "MRR10" for 10% off your order at elitefts.com Iron Culture is proudly presented by the MASS Research Review massresearchreview.com Chapters 00:00 Introduction and guest background 01:53 What is coaching and why it matters 04:04 The importance of motivation and internal drive 07:04 Building rapport and trust with clients 10:10 Transition from sports to bodybuilding coaching 14:53 Differences in motivation between athletes and general clients 19:56 Creating internal motivation in clients 25:07 The role of accountability and standards 29:54 The impact of emotional intelligence and relationship building 34:58 Misconceptions about tough love and discipline 40:14 The importance of understanding client context 45:04 Practical strategies for long-term adherence 49:55 Lessons learned from sports coaching 55:09 The value of humility and continuous learning 01:00:12 Closing thoughts and key takeaways

Trexler and Helms dig into sleep and how it intersects with body composition and supplementation. They open on the sleep-and-lifting landscape, then work through the frequently cited 2010 study on insufficient sleep and fat loss, laying out its design and the details behind its dramatic-sounding numbers. From there they discuss what the broader literature does and doesn't establish, the acute effects of sleep restriction on power, skill, and pain perception, and observational data — including sleep patterns in hunter-gatherer societies and among elite athletes — plus the relationship between sleep duration and sleep efficiency. The back half turns to supplementation. They trace the history of research on creatine and sleep, from early findings that creatine might reduce sleep need to newer work on brain creatine under sleep deprivation. This leads into a crossover trial testing caffeine and creatine against a sleep-deprivation cognitive challenge, its findings on rugby passing accuracy, and how to interpret an isolated positive result on a little-studied question. They cover a more recent high-dose replication, then close with the practical side — creatine dosing, the common report that creatine disrupts sleep, and caffeine timing — before wrapping up. Join us for a live recording of Iron Culture! We go live Tuesdays at 5:30 pm eastern time. Be sure to use code "MRR10" for 10% off your order at elitefts.com Iron Culture is proudly presented by the MASS Research Review massresearchreview.com Chapters 0:00 Intro 9:44 Sleep & body composition 11:16 Unpacking the famous 2010 sleep study 20:52 The blind spot in the sleep literature 23:04 Sleep restriction, power, skill & pain 27:20 Sleep duration vs. sleep efficiency 31:45 The big takeaway on sleep & gains 34:57 Creatine & sleep: the research history 41:22 The caffeine vs. creatine study 44:47 What the study found 54:21 A newer high-dose replication 1:08:26 Practical application: dosing, timing & sleep complaints 1:15:44 Wrap-up

In this episode, Eric Helms and Steve Hall explore the nuances of body recomposition, optimal bulking and cutting strategies, and the science behind muscle gain and fat loss. They discuss recent research, practical insights, and debunk common myths to help athletes optimize their training and nutrition. Iron Culture is proudly presented by the MASS Research Review. Mostly because Helms and Trex are co-owners. massresearchreview.com If you're in the market for some new (ultra-high-quality) gym gear or apparel, be sure to use code "MRR10" for a 10% discount over at elitefts.com If you'd like to submit a question for a future episode, head over to: massresearchreview.com/ironculture Chapters 00:00 Audio Troubles and Nostalgia 02:47 Heat and Body Temperature During Massing 05:58 Gaining Weight: Personal Experiences and Insights 09:02 Recomposition: Understanding the Nuances 11:59 Surplus vs. Maintenance: The Anabolic Debate 14:45 The Role of Body Composition in Muscle Gain 18:05 Deficits and Muscle Gain: A Closer Look 20:53 The Impact of Training Experience on Gains 23:50 Psychology of Body Image and Muscle Growth 34:30 Evolution of Perspectives in Bodybuilding 35:30 The Surplus Dilemma: Muscle Gain vs. Fat Gain 39:35 Post-Show Recovery: Finding the Balance 43:43 The Impact of Body Fat on Muscle Growth 46:26 Psychological Aspects of Bodybuilding and Recovery 51:20 Understanding Muscle Memory and Recovery 01:04:31 The Complexity of Body Composition Studies

In today's Q&A episode, the Erics work through a few listener questions. First they tackle upper/lower body imbalance — why lagging body parts usually call for improving training quality before adding volume, and why standout muscle groups can be maintained on surprisingly little work. Next is a long discussion on managing fatigue and exercise sequencing in high-frequency, non-traditional splits, including why the "48 hours between muscle groups" rule is more dogma than requirement and how to think about fatigue as continuous rather than categorical. The episode closes with a multifaceted question on REDs (relative energy deficiency in sport) — what it is, its warning signs, and the limits of what bloodwork can actually tell you. Iron Culture is proudly presented by the MASS Research Review. Mostly because Helms and Trex are co-owners. massresearchreview.com If you're in the market for some new (ultra-high-quality) gym gear or apparel, be sure to use code "MRR10" for a 10% discount over at elitefts.com If you'd like to submit a question for a future episode, head over to: massresearchreview.com/ironculture Chapters 0:00 Intro 4:25 Fixing upper/lower body imbalance 6:39 Quality before quantity 9:03 Why standout muscles hold with less work 12:25 Fatigue & sequencing high-frequency training 17:58 How to actually sequence back-to-back days 23:56 Lifting "rules" set in concrete 26:09 Are lifters too worried about fatigue? 39:34 REDs (relative energy deficiency in sport) 40:51 Liver enzymes, creatinine & training stress 46:07 Cholesterol/LDL & other markers 1:00:21 Wrap-up

This episode begins with a slightly defensive rant by Eric Trexler, followed by a very defensive rant by Eric Helms. After that, they dive into new research uncovering the complexities of ultraprocessed foods, their impact on obesity, binge eating, and the food industry's role in creating and promoting hyperpalatable ultraprocessed foods. Iron Culture is proudly presented by the MASS Research Review (massresearchreview.com) If you're in the market for some high-quality gym gear or apparel, be sure to support our friends at elitefts.com and use code "MRR10" for a 10% discount. Chapters 00:00 Intro 10:14 Trexler & Helms respond to social media criticism 15:48 Slightly defensive rant by Trexler 23:10 Extremely defensive rant by Helms 32:25 Roles in The Ecosystem of Science Communication 41:39 Exploring the Impact of Ultra-Processed Foods 46:20 Understanding Ultra-Processed Foods and Their Nuances 51:16 The Role of Food Processing in Feeding a Growing Population 55:53 Hyper-Palatable Foods and Their Effects on Eating Behavior 59:07 The Evolution of Eating Disorder Treatment Perspectives 01:04:30 The Relationship Between Hyper-Palatable Foods and Binge Eating 01:09:05 Neurophysiology of Food Consumption and Addiction 01:12:20 Conclusions & practical applications for food selection