
The N1 Experience
We'll be investigating the science of resistance training. Our goal is to dive into the contextual considerations needed to individualize fitness and practically apply the available evidence to upgrade your training journey.
Latest episodes

Jun 10, 2025 • 1h 38min
#14 Garrett Walker AKA Runvus - Battling "science based" TikTok and influencers
Kassem sits down with Garret walker to discuss the good, bad, and ugly side of content claiming to be 'science based' in the fitness industry.

Jun 8, 2025 • 1h 19min
#13 Ben Yanes: Upper vs Lower Lat Bias & Debate Reaction
Anatomy primer and EMG research: https://www.instagram.com/p/DKftW_2SDnj/?img_index=17Practical strategies for biasing the lats and muscle length research: https://www.instagram.com/p/DKiDNs3uNCG/?img_index=1

Jun 5, 2025 • 1h 31min
#12 Hypertrophy Coach - Biomechanics & Neuromechanical Matching Errors
Learn the history of Joe and Kas from when they used to work together, and where a lot of popular exercises and techniques originated.Dive into the false conclusions being drawn by those who cite "biomechanics" and "neuromechanical matching" but don't have a clue what they're talking about.The N1 training app is live! You must join first at https://n1.training/app-membership/ and then you can log in to the appDownload the app in the App Store: "N1 Training"We also have new dates for live seminars https://n1.education/events/

4 snips
May 21, 2025 • 1h 59min
#11 High Efficiency Hypertrophy Training - Dr. Eric Helms
Join Dr. Eric Helms, a pro bodybuilder and researcher, as he dives into innovative hypertrophy training strategies. Discover how techniques like supersets and drop sets can maximize your muscle gains while saving time. Eric discusses the intricacies of exercise pairing to enhance recovery and optimize performance. He emphasizes intuitive training, allowing for real-time adjustments based on feedback. Learn about the significance of shoulder mechanics and advanced strategies for efficient muscle development that cater to individual needs.

Mar 27, 2024 • 2h 15min
#10 Dr Desouza: Are Lengthened Partial Reps Overhyped?
In Part 2 with Dr. De Souza, we get a sneak peak into a study that hasn't been published yet, but contrasting to the "52 weekly set" paper, this one did not find higher volume to be better for hypertrophy.
In the second hour, we take on the topic of lengthened partials in a bit of a debate format, where Kassem takes on the position to defend the lengthened partials, and finishes with his actual nuanced thoughts on lengthened biased training and training variability.

Mar 22, 2024 • 1h 55min
#9 Dr. Desouza: Hypertrophy Studies VS Just Smashing Weights
Part 1 of 2 with Dr. Eduardo De Souza whose lab has been doing ton's of studies on volume including the famous 52 weekly sets study.
We start the discussion with a much needed preface of how confident are we actually in measuring hypertrophy outcomes. Then we progress into the validity of studies on high volume.
In part 2 we will continue the discussion on volume including discussing some yet to be published work that may surprise you, and we will finish off with a debate on long muscle lengths and lengthened partials.
This is where your favorite influencers and coaches get their information and inspiration.

Feb 21, 2024 • 2h 24min
#8 Dr. Eric Helms - Science Communication in the Fitness Industry
Dr. Eric Helms discusses challenges in fitness science communication. They explore bro science, critical thinking in academia, protein intake for bodybuilders, conflicts of interest, and navigating content creation in the fitness industry.

Feb 21, 2024 • 2h 34min
#7 "Stop Blaming Science, Bro" with Dr. Pak
Should you trust someone because they have a PhD?
Real Doctor, Dr. Pak (@dr__pak) is on to defend science and all her glory. I challenge the quality of "science-based" content, and the use of science as a marketing hype by "bad actors".
What's the difference between a sports scientist and an exercise scientist, and how well do the understand the foundational science for the field or training (anatomy, biomechanics, physics etc).
As a bonus we also discussed his recent publication "Optimizing Resistance Training Technique to Maximize Muscle Hypertrophy: A Narrative Review". with Dr Milo Wolf, Max Coleman, Ryan Burke, Alec Piñero, Jeff Nippard, and Brad J. Schoenfeld,

Feb 19, 2024 • 2h 23min
#6 Is Exercise Science KILLING your GAINS? Or "science-based" content creators? with Alexander Bromley
Exploring the clash between exercise science and marketing in the fitness industry, discussing 'science-based' content creators. Delving into the complexities of applying science in fitness coaching and the challenges in research credibility. Addressing internal accountability issues, conflicts of interest in expertise, and optimizing training for long-term success. Emphasizing the need for individualized approaches, data analytics in training, and navigating cultural biases in research.

Jul 3, 2023 • 2h 20min
#5 Training to Failure Research and Practical Application with Zac Robinson
Kassem and Zac discuss the recent meta regression and how that compares to the previous meta analysis on training to failure. In the second half, Zac ask Kassem about some of the nuances of exercise selection in regards to training to failure.
00:03:21 - Summary of the Meta Regression
00:08:40 - Comparing the Meta Regression to the previous Meta analysis 00:13:12 - Discussing the RIR estimations
00:21:37 - What are the biggest take aways from the two Metas, and single studies.00:33:26 - The non linear relationship of RIR as you approach momentary failure.
00:42:50 - Getting into the nuances of exercise selection variables on failure.
You can find Zac on instagram
@zac.datadrivenstrength