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MASS Office Hours

Latest episodes

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Jan 8, 2025 • 1h 35min

Ep 309 - Finding the Volume “Sweet Spot” During Plateaus

Dive into the complexities of muscle gain and recovery as two experts unravel the mysteries of training plateaus. Discover how the right training volume can enhance performance while navigating the psychological factors at play. Nutrition takes center stage, focusing on food quality's role in hypertrophy and overall health. They also tackle body weight regulation, examining unique intervention points and the impact of societal pressures on body image. Plus, gain insights into powerlifting strategies and the significance of ongoing education for athletes.
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Jan 1, 2025 • 1h 34min

Ep 308 - The Future of Natural Bodybuilding (w/ WNBF Pros Alberto Nuñez and Steff Noble)

In this episode, Eric Helms is joined by returning guest, his fellow 3DMJ coach and WNBF Pro bodybuilder, Alberto Nuñez, who is also the  male WNBF athlete rep. In addition, they are joined by first time guest Steff Noble, a WNBF Figure pro, experienced coach, and president of WNBF UK. The trio first reflects on what was arguably the most competitive natural bodybuilding season to date, and the overall state of drug free bodybuilding, which in many ways is flourishing. There is more interest, higher competitive levels, higher productive quality in some regions, and in some countries natural bodybuilding is growing faster than enhanced bodybuilding. In North America, while some federations are doing better than others, the market demand for natural bodybuilding is obvious, as the NPC has made a concerted push to enter the natural bodybuilding scene, promoting drug tested shows in the US and Canada (as well as overseas), and even offering the chance to turn pro at the biggest natural events, with promises of drug tested pro shows on the horizon. What does this mean for natural bodybuilding? Is this a good thing, a threat, the beginning of a new era, or the beginning of the end? Further, what does the natural bodybuilding community need to do collectively to secure its future? Join us in this episode as we review not only the 2024 natural bodybuilding season, but discuss the future of the sport. The MASS crew records Iron Culture LIVE on YouTube, every Monday night at 7pm eastern time. Be sure to join us for a future episode and say hello in the live chat!  If you'd like to submit a question or topic for us to address on an upcoming episode, please use this link:  https://massresearchreview.com/office... Time stamps: 00:00 (Re)-introducing Berto and Steff while Helms discusses ‘sports’ 04:15 Steff’s WNBF World’s recap and natural bodybuilding journey 10:35 The differences and similarities between the UK and US bodybuilding scenes (with some Eric seed-planting) 17:14 Berto’s WNBF World’s experience and the rising standard of bodybuilding 24:22 Regional differences in bodybuilding 36:09 The promoting and production of shows 46:00 The shift in the bodybuilding athlete mindset  51:31 The growth of the sport and increasing number of federations 59:12 Discussing comparisons with Powerlifting 1:13:40 Time for natural bodybuilding to adapt or die 1:26:03 Final perspectives on the future of bodybuilding 1:33:00 Closing out
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Dec 25, 2024 • 1h 37min

Ep 307 - Are Lengthened Partials Overrated?

In this episode of Iron Culture presented by MASS, Dr. Eric Trexler and Dr. Eric Helms explore the science and debate surrounding lengthened partials, a training technique often celebrated for its hypertrophy and strength benefits. Drawing on recent studies, they discuss how emerging evidence challenges some hyperbolic claims of lengthened partials as a superior training method, suggesting instead that their effectiveness is highly context-dependent. The hosts advocate for viewing lengthened partials as a complementary, rather than revolutionary, tool in exercise programming. After the main discussion, the episode transitions into a series of listener questions, with Dr. Trexler sharing his renewed enthusiasm for training (and his current approach to training) as he recovers from surgery. The hosts also address topics like the importance of omega-3 intake during low-fat diets, the diminishing returns of high training volumes, practical applications of two-a-day training splits, and the impact of high-protein diets on digestive health, emphasizing fiber and dietary diversity. They also discuss caffeine’s role in sleep disruption, underlining caffeine timing as an easy way to improve sleep quality, among many other topics. The MASS crew records Iron Culture LIVE on YouTube, every Monday night at 7pm eastern time. Be sure to join us for a future episode and say hello in the live chat! If you'd like to submit a question or topic for us to address on an upcoming episode, please use this link: https://massresearchreview.com/office-hours/ Time stamps: 0:00 Intro music 2:30 Introduction to another episode of Iron Culture x MASS Office Hours 3:31 New pre-prints on lengthened partials Gschneider 2024 The effects of lengthened-partial range of motionresistance training of the limbs on arm and thigh musclecross-sectional area: a multi-site cluster trial https://sportrxiv.org/index.php/server/preprint/view/485 Hinson 2024 Mixing Up Muscle Lengths: The Effects of Manipulating Peak Torque At Different Muscle Lengths in the Elbow Flexors https://sportrxiv.org/index.php/server/preprint/view/486 16:33 Helms’ breakdown of the literature Maeo 2023 Effects of hip extension training performed with full versus partial range of motion at long muscle lengths on muscle hypertrophy and sprint performance https://www.ecss.mobi/DATA/EDSS/C28/28-3269.pdf Kassiano 2023 Greater Gastrocnemius Muscle Hypertrophy After Partial Range of Motion Training Performed at Long Muscle Lengths https://pubmed.ncbi.nlm.nih.gov/37015016/ Pedrosa 2022 Partial range of motion training elicits favorable improvements in muscular adaptations when carried out at long muscle lengths https://pubmed.ncbi.nlm.nih.gov/33977835/ Werkhausen 2021 Adaptations to explosive resistance training with partial range of motion are not inferior to full range of motion https://pubmed.ncbi.nlm.nih.gov/33465838/ 25:23 Live chat Q&A 1 An update on Trexler’s training 33:26 Q&A 2 Omega-3 intake with low fat diets 36:54 Q&A 3 Quantifying volume and finding the sweet spot Pelland 2024 The Resistance Training Dose-Response: Meta-Regressions Exploring the Effects of Weekly Volume and Frequency on Muscle Hypertrophy and Strength Gain https://sportrxiv.org/index.php/server/preprint/view/460 43:25 Teasing the MASS research interpretation and statistics guide 54:37 Q&A 4 When to do two-a-days 58:05 Q&A 5 Digestive health with high protein diets 1:06:12 Q&A 6 Caffeine and sleep disruption 1:13:07 Rapid fire Q&A: efficiency tiers, kinetic chain, waking-up with earplugs, cross-fit athletes, Trex’s injury and intervention, resistance profiles at different muscle lengths Plotkin 2023 Hip thrust and back squat training elicit similar gluteus muscle hypertrophy and transfer similarly to the deadlift https://pubmed.ncbi.nlm.nih.gov/37877099/ Kobayashi 2024 Distinct hypertrophy of the elbow flexors after incline versus preacher dumbbell curl training https://www.ecss.mobi/DATA/EDSS/C29/29-1752.pdf Zabaleta-Korta 2021 The role of exercise selection in regional Muscle Hypertrophy: A randomized controlled trial https://pubmed.ncbi.nlm.nih.gov/34743671/ Larsen 2024 Dumbbell versus cable lateral raises for lateral deltoid hypertrophy: an experimental study https://sportrxiv.org/index.php/server/preprint/view/487 1:32:37 Helms’ objectivity from being a competitive bodybuilder and closing out https://massresearchreview.com/ --- Music credit: Airport Lounge - Disco Ultralounge by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/... Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/
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Dec 18, 2024 • 60min

Ep 306 - Mental Health, Physique Sports, and Fitness Coaching (ft. Laurin Conlin)

In this crossover episode of Iron Culture, co-hosts Danny Lennon and Eric Trexler are joined by fitness professional and fellow Sports Nutrition Association (SNA) advisory board member Laurin Conlin. Together, they dive into the complex relationship between mental health, physique sports, and fitness coaching. Laurin shares her personal experiences and insights on how disordered eating and body image issues often arise in competitive physique sports, and how these behaviors can permeate into the broader fitness space. The conversation highlights strategies for recognizing and reducing harmful behaviors, the importance of revisiting problematic terminology in the industry, and the value of maintaining a holistic perspective in coaching. Practical advice for fitness practitioners is grounded in evidence-based approaches like motivational interviewing, helping coaches better support clients navigating these challenges. The episode concludes with resources for learning more about the SNA and its initiatives in advancing sports nutrition practice. Time stamps: 00:00 Introducing Laurin to this SNA crossover episode 06:05 What got Laurin into the mental health space and where does physique sport cross into disordered eating/body image disorder? 15:02 Recognising and reducing harmful behaviours and cognitions associated with competing in physique sport 28:20 Laurin’s personal experiences and physique sport behaviours permeating into general health and fitness 35:51 Problematic terminology and looking at the bigger picture 45:51 Advice for health practitioners to help clients in this area Clifford & Curtis (2016) Motivational interviewing in nutrition and fitness. https://psycnet.apa.org/record/2015-33705-000 58:22 Closing out and where to find more information on the Sport Nutrition Association Website https://sportsnutritionassociation.com/ Board Members https://sportsnutritionassociation.com/advisory-board/
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Dec 11, 2024 • 1h 28min

Ep 305 - What is Strength? (w/Drs. Adrian Kind, Conor Heffernan & Walter Veit)

Who is the strongest? Is it the person with the biggest Powerlifting total? Weightlifting total? The current Worlds Strongest Man/Woman Champion? Or, perhaps, the current Arnold Strongman Classic Champion? It’s an oft-debated question, typically occurring around the proverbial fitness water cooler. However, recently Dr. Kind, Dr. Veit, Dr. Heffernan, and our very own Dr. Helms made this debate into a multidisciplinary academic paper. Specifically, they asked the question through the lens of history, what has strength meant in society since the dawn of physical culture, what is strength philosophically, and finally, what is strength objectively, as measured in sport and exercise science? Join us as we discuss why asking this question is important, and how these very different disciplines turned out to be quite complementary in providing an answer. The MASS crew records Iron Culture LIVE on YouTube, every Monday night at 7pm eastern time. Be sure to join us for a future episode and say hello in the live chat!   If you'd like to submit a question or topic for us to address on an upcoming episode, please use this link:   https://massresearchreview.com/office-hours/   Time stamps: 00:00 Welcoming back Dr Conor Heffernan from the Obelisk  2:35 Adrian and Walter (re)-introduction Kind 2023 Is bodybuilding a sport? https://www.tandfonline.com/doi/full/10.1080/00948705.2023.2234978 6:26 What is strength? Kind 2024 What is strength? https://sportrxiv.org/index.php/server/preprint/view/467 14:21 Who in society decides what strength is? 29:45 A philosophical breakdown of the definition of strength 36:54 Strength measures of interest 56:02 Skill, efficiency, and intentionality Bauman 1926 Observations on the Strength of the Chimpanzee and its Implications https://academic.oup.com/jmammal/article-abstract/7/1/1/866743 1:06:03 Eric’s tirade on sports science and exploring different strength variables  1:12:36 Categorising strength feats 1:18:46 The final sign-off (more plates, more dates?)
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Dec 4, 2024 • 1h 33min

Ep 304 - Beyond "1.6 - 2.2": Evidence-Based Protein Guidelines

Dive into the misinterpretation of pain science in fitness and how it affects training. Explore personalized protein guidelines that advocate for fat-free mass over body weight. Learn about the role of electrical muscle stimulation in hypertrophy and the impact of aging on training dynamics. Discover the challenges of adapting to cold training environments and the importance of biomechanics in injury prevention. Plus, insight into motivation strategies to stay focused on personal fitness goals!
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Nov 27, 2024 • 1h 41min

Ep 303 - Is the Obesity Epidemic an Evolutionary "Factory Error"?

This week we’ve got a MONSTER episode in the form of a live Q&A episode with Dr. Helms and Dr. Trexler. The Good Doctors begin with a recap of the recent WNBF World Championships, followed by an insightful discussion about whether or not humans have a “factory error” in our design that promotes obesity. This is followed by a number of listeners’ questions about functional anatomy, exercise selection, the importance of the eccentric phase of a lift, factors impacting reps in reserve (RIR) accuracy, biceps contributions to back exercises, hypertrophy considerations for the deadlift exercise, mini-cuts, set-to-set fatigue, energy expenditure limits, “delayed” hypertrophy, how to tell if you’re a creatine nonresponder, and velocity-based training. The MASS crew records Iron Culture LIVE on YouTube, every Monday night at 7pm eastern time. Be sure to join us for a future episode and say hello in the live chat! If you'd like to submit a question or topic for us to address on an upcoming episode, please use this link: https://massresearchreview.com/office-hours/ Also, don’t miss out on the MASS Black Friday Sale, which has already started! Learn more and take advantage of huge discounts at www.massresearchreview.com Time stamps: 0:00 Intro  5:30 WNBF Worlds recap  15:25 Do Humans Have a “Factory Error” in our Design That Promotes Obesity? Pontzer 2023 The provisioned primate: patterns of obesity across lemurs, monkeys, apes and humans https://pubmed.ncbi.nlm.nih.gov/37661747/ 25:45 How important is the eccentric portion of the lift for hypertrophy? Roig 2009 The effects of eccentric versus concentric resistance training on muscle strength and mass in healthy adults: a systematic review with meta-analysis https://pubmed.ncbi.nlm.nih.gov/18981046/ Schoenfeld 2010 The mechanisms of muscle hypertrophy and their application to resistance training https://pubmed.ncbi.nlm.nih.gov/20847704/ 37:15 Exercises with brace points  Haugen 2023 Effect of free-weight vs. machine-based strength training on maximal strength, hypertrophy and jump performance - a systematic review and meta-analysis https://pubmed.ncbi.nlm.nih.gov/37582807/ 44:56 Biceps functional anatomy during back compound exercises and epistemology Pelland 2024 The Resistance Training Dose-Response: Meta-Regressions Exploring the Effects of Weekly Volume and Frequency on Muscle Hypertrophy and Strength Gain https://sportrxiv.org/index.php/server/preprint/view/460/version/587 50:25 Muscles to hypertrophy to increase deadlift strength 57:55 Rapid fire questions – Q1 Mini-cuts and bulking 1:05:15 Q2 Bench repetition performance across sets 1:08:35 Q3 Extreme energy expenditure Areta 2024 Energetics of a World-Tour Female Road Cyclist During a Multistage Race (Tour de France Femmes) https://pubmed.ncbi.nlm.nih.gov/38796175/ Thurber 2019 Extreme events reveal an alimentary limit on sustained maximal human energy expenditure https://pubmed.ncbi.nlm.nih.gov/31183404/ 1:12:34 Q4 Latent or delayed hypertrophy following a diet Bjørnsen 2019 Delayed myonuclear addition, myofiber hypertrophy, and increases in strength with high-frequency low-load blood flow restricted training to volitional failure https://pubmed.ncbi.nlm.nih.gov/30543499/ Damas 2016 Resistance training-induced changes in integrated myofibrillar protein synthesis are related to hypertrophy only after attenuation of muscle damage https://pubmed.ncbi.nlm.nih.gov/27219125/ 1:31:26 Q5 Where to find information on velocity-based training  https://massresearchreview.com/ 1:37:16 Closing out --- Turn your videos into live streams with https://restream.io --- Music credit: Airport Lounge - Disco Ultralounge by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/ Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100806 Artist: http://incompetech.com/
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Nov 18, 2024 • 1h 26min

Ep 302 - Why We Believe Nutrition Lies

Joe Klemczewski, a pioneering bodybuilding coach, discusses the overwhelming amount of nutritional misinformation in today's media landscape. He emphasizes the importance of critical thinking and educational efforts to help clients discern truth from misleading claims. Klemczewski explores the evolution of bodybuilding nutrition and highlights how social media influences diet trends and public perception. By reflecting on history and advocating for evidence-based practices, he guides listeners on navigating the complexities of modern nutritional science.
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Nov 12, 2024 • 1h 26min

MASS Office Hours Episode 62 (A New Era for Office Hours)

Today’s episode of MASS Office Hours is truly special, and not just because it’s airing on a Monday. First, the MASS crew announces a new era of Office Hours as the show has formally merged with the Iron Culture podcast. After making this announcement, the crew lets listeners know what they can expect as the show pushes forward and climbs to new heights. After that, the crew has an insightful discussion about the science of satellite cells – what they are, when they might (or might not) matter, and how they intersect with many hypertrophy-related topics, such as sex differences, aging, muscle damage, and factors that limit long-term muscle growth. The MASS crew records Iron Culture LIVE on YouTube, every Monday night at 7pm eastern time. Be sure to join us for a future episode and say hello in the live chat! If you'd like to submit a question or topic for us to address on an upcoming episode, please use this link: https://massresearchreview.com/office-hours/ Time stamps 0:00 Intro 0:21 Big announcements about the future of Iron Culture and MASS Office Hours 5:10 Helms reflects on “the merger” 7:04 Re-introducing Dr. Mike Zourdos 17:53 Re-introducing Dr. Lauren Colenso-Semple 26:38 Dr. Helms’ recent research 30:46 Dr. Trexler’s current research 34:20 A primer on satellite cells 49:31 The role of satellite cells during growth/maturation and during use of exogenous anabolics 51:21 Sex differences and exogenous anabolics 53:52 The impact of aging on satellite cells and their function 58:54 Do satellite cell responses to muscle damage play a major role in muscle growth? 1:02:37 Do satellite cells and myonuclear domain theory become more relevant for muscle growth when the magnitude of growth becomes more substantial? 1:10:01 Does hard training induce muscle hyperplasia? 1:19:06 If meaningful muscle hyperplasia does occur in response to resistance training, does that impact how we should approach or design training programs? 1:24:39 Wrapping up
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Nov 8, 2024 • 1h 30min

MASS Office Hours Episode 61 (The Lost Episode)

The Lost Episode of MASS Office Hours will be discussed for decades to come. Was the episode buried and all copies destroyed because it was simply too controversial? Did the hosts reveal a secret too dangerous to publish? Did Eric accidentally delete the episode by hitting the wrong button after they recorded? We may never know. In this re-recorded episode of MASS Office Hours, Dr. Eric Trexler is joined by Dr. Lauren Colenso-Semple to discuss Trex's surgery recovery, bilateral vs unilateral training for hypertrophy, shifting calories throughout the week while trying to build muscle, what to do after substantial weight loss, micronutrient adequacy, micronutrient testing, sex-based training differences, and arguing with people on the internet. PLEASE NOTE: We're switching our live streams to Monday nights, effective immediately! The MASS crew goes live for Office Hours every Monday night at 7pm eastern time. Be sure to join us for a future episode! If you'd like to submit a question ahead of time, please use this link: https://massresearchreview.com/office-hours/ Time stamps 0:00 intro 1:18 important announcement about Office Hours schedule 3:27 Trex's surgery recovery 11:50 bilateral vs unilateral training for hypertrophy 21:43 shifting calories throughout the week while trying to build muscle 33:07 what to do after substantial weight loss 45:07 micronutrient adequacy and micronutrient testing 57:26 sex-based training differences 1:10:10 arguing with people on the internet

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