Ep 361 - Are N = 1 Anecdotes Meaningless? @IronCulturePodcast

Uploaded January 2026 | Updated September 2026, 3 days ago

In this episode of Iron Culture, Eric Helms and Dr. Eric Trexler discuss the importance of self-experimentation in fitness, the history and significance of statistics in science, and the balance between skepticism and curiosity in science communication. They explore the claims made about self-experimentation, the role of statistical significance versus meaningful outcomes, and the necessity of integrating various sources of evidence in practice. The conversation emphasizes the importance of humility and open-mindedness in the pursuit of knowledge and understanding in the fitness community.

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Chapters
00:00 Celebrating Milestones: Personal Reflections
06:33 Housekeeping: Supporting the Podcast
08:20 The Intersection of Science and Lifting
10:43 Self-Experimentation: Claims and Critiques
14:05 The History of Statistics in Science
22:26 Understanding Scientific Consensus and Its Pitfalls
30:10 Navigating Science Communication and Expertise
34:20 The Complexity of Self-Experimentation
39:45 Understanding Individual Responses in Exercise Science
44:24 Navigating the Challenges of Self-Experimentation
49:03 The Importance of Meaningful Outcomes
54:40 Integrating Evidence-Based Practice
01:01:52 The Balance of Skepticism and Curiosity in Fitness Science

Ep 361 - Are N = 1 Anecdotes Meaningless?

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$Ep 277- Menstrual Cycle Training Roundtable (w/Dr. Lauren Colenso-Semple & Dr. Kim SantaBarbara) Fresh off of their successful doctoral defenses, Lauren and Kim join iron culture to discuss all things menstrual-cycle related for lifters! Dr. Helms had the pleasure of mentoring Kim, who recently completed her PhD at AUT, in which she surveyed and monitored the menstrual cycle symptoms of resistance-training women, and also led an intervention of mindfulness-based yoga to see the impact on menstrual cycle symptom severity. These findings are complemented by Lauren’s PhD research, recently completed at Stu Phillips lab at McMaster University, where she looked at muscle protein fractional responses to resistance training in women during different menstrual cycle phases. Covering both the applied and mechanistic side of the equation, this Roundtable discussion led by the Erics gives you the cutting edge low down on whether or not menstrual cycle phased based training is all that it’s hyped up to be. 00:00 Introduction to a streamlined operation without any delays 04:00 Our guests describe their research MASS Research Review https://massresearchreview.com/ MASS Office Hours https://www.youtube.com/channel/UCCFcHTO44O8d_P4-rlH5siw 15:26 Covering some background topics before jumping into the topic Colenso-Semple 2023 Current evidence shows no influence of womens menstrual cycle phase on acute strength performance or adaptations to resistance exercise training https://pubmed.ncbi.nlm.nih.gov/37033884/ 27:47 Menstrual-cycle based training 39:03 Do we need to control for the menstrual cycle in exercise science research? 45:30 Kim breaks down her PhD Research and a quick discussion on anovulatory cycles 1:02:14 What do women do when their menstrual cycle doesn’t align with their competition schedule? Ways of managing and alleviating symptoms 1:14:48 The Chasteberry (vitex agnus-castus) and a Trexler tangent for the future 1:20:32 Caution against fixating on the menstrual cycle and Lauren’s upcoming research outputs 1:25:03 Closing out on this topic and where to find our guests Kim: @kimberlysantabarbara https://www.instagram.com/kimberlysantabarbara/?hl=en Lauren: @laurencs1 https://www.instagram.com/laurencs1/?hl=en$

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