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By Eric Helms & Eric Trexler
4.8
730730 ratings
The podcast currently has 398 episodes available.
The most played episodes among Podcast App listeners.

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 Trexler and Eric Helms explore the energetic cost of building human skeletal muscle, discussing recent research, practical implications, and misconceptions about muscle growth and energy expenditure. Relevant papers: https://pubmed.ncbi.nlm.nih.gov/31482093/ https://pubmed.ncbi.nlm.nih.gov/37914977/ https://www.biorxiv.org/content/10.64898/2026.08.17.745156v1.full.pdf 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 01:52 Powerlifting shout-out 11:55 Introduction to new paper on energetic cost of building muscle 20:01 Components of muscle tissue building and their energy costs 22:59 Practical implications of the 3500 calorie rule 30:05 The five additive components of muscle growth energy cost 33:49 Variability in individual energy expenditure responses 40:12 Limitations and future directions in research 50:10 Summary and concluding thoughts

In this episode, Eric Helms and Steve Hall discuss training strategies, auto-regulation, the role of cardio in bodybuilding, and practical techniques for efficient training. They share insights from their recent training camps and personal experiences to help listeners optimize their workouts and recovery. 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 01:55 Training environment and mental focus during camps 03:57 Eric and Steve discuss recent training experiences 06:50 Auto-regulation and its role in effective training 11:59 Time-saving techniques: drop sets, clusters, and rest pause 19:49 Cardio in bodybuilding: health benefits and recovery 29:56 Monitoring performance and avoiding overtraining 39:58 Practical tips for implementing efficient training methods 49:58 Reflections on training, recovery, and future plans

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 Helms's new MASS article, "Are studies on untrained lifters irrelevant to trained lifters?" It's built around a new umbrella review by Andy Fry and colleagues. The recurring internet claim is that most exercise research is done on untrained people, so a trained lifter is "built different" and the findings don't apply. The hosts unpack why that's mostly wrong. They start with the messy problem of defining how "trained" someone is. Then they discuss Fry's review, which reports that roughly 70% of resistance training study participants are sedentary or untrained, with fewer than 500 out of nearly 19,000 participants counting as genuinely well-trained. But the key focus of the episode is that this doesn't invalidate the research: what makes a beginner grow more will also make an advanced lifter grow more — the difference is rate, not mechanism. 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 8:25 The article: do untrained studies apply? 11:31 What does "trained" even mean? 22:26 How researchers try to define training status 25:51 Fry's approach & the McKay tiers 28:07 A review of reviews: mapping the literature 32:24 The finding: 70% untrained 37:46 Is that actually a problem? 43:44 Where meta-analyses fall short 51:27 Dose, stimulus & the maintenance threshold 58:27 Realistic rates of progress & goal-setting 1:14:51 Wrap-up: you don't need perfect
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