Ep 366 - New Studies: Long Muscle Lengths & Muscle Swelling
Iron Culture presented by MASS
The MASS Crew
4.8 • 874 Ratings
🗓️ 18 February 2026
⏱️ 77 minutes
🧾️ Download transcript
Summary
In this episode of Iron Culture, Eric Trexler and Eric Helms discuss perpetually hot topics in the fitness and bodybuilding community, focusing on recent research findings related to training at long muscle lengths and the implications of muscle swelling on hypertrophy reserach. They explore the nuances of lengthened bias training, the importance of sampling variance in research, and the impact of muscle swelling on hypertrophy measurements.
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Chapters
00:00 Intro
04:39 Research Roundup: Lengthened Bias Training
07:20 Study Findings and Interpretations
10:24 Contextualizing Research in Fitness
13:53 Incremental Improvements in Research
17:10 Understanding Muscle Mechanics and Training Equipment
23:23 Sampling Variance and Its Impact on Research Interpretation
37:33 The Debate on Lengthened vs. Shortened Training
49:20 New Insights on Muscle Swelling and Hypertrophy
58:46 Understanding Muscle Performance and Recovery
01:03:39 The Debate on Training Volume and Hypertrophy
01:12:09 Wrapping up
Transcript
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| 0:00.0 | Hey, everybody, welcome back to Iron Culture. It is me, Air Trek's the joint, as always, by the Dr. Eric Helms. Helms. How are we doing tonight? |
| 0:13.4 | I'm doing pretty well this not yet afternoon here on Wednesday in New Zealand, but I hope you're having a great Tuesday night over there |
| 0:22.6 | in the great state of North Carolina. Yes, all is well on my end. Nothing to report. |
| 0:31.1 | Things are very normal. I do have some housekeeping notes for the people who are very confused |
| 0:36.1 | and annoyed by details. |
| 0:42.0 | So folks, we've had a renumbering of episodes, and I believe we have to draw attention to that. |
| 0:42.5 | So we had a wonderful crossover episode with Steve Hall, but YouTube is very particular |
| 0:48.5 | about how you can incorporate those into your playlists. |
| 0:52.0 | Those videos cannot have alternate titling going on. So therefore, |
| 0:56.0 | episode 365, which was that, became a bonus episode. And episode 366 became 365. And you are now |
| 1:02.2 | listening to episode 366 for many of you for the second time. But this time, it's a different |
| 1:08.1 | episode than the last time you listen to episode 366. |
| 1:11.1 | So Helms, I think that clears everything up in a very tidy way with no confusion whatsoever. |
| 1:17.5 | None whatsoever. |
| 1:19.1 | And are we going to need to then update the titles on our podcast feed to match YouTube? |
| 1:26.0 | Because we can't have YouTube podcast feed disparity. |
| 1:30.1 | I believe that results in some type of catastrophic. |
| 1:33.9 | I get a chuckle out of people who are absolutely tortured by those types of discrepancies, |
| 1:40.6 | but I'm not malicious and therefore I've already updated the podcast feeds. |
| 1:45.7 | But it would have been an enjoyable thing for me because I know there's at least 15 people |
| 1:50.7 | out there who that would have ruined their life to know that every week there were |
| 1:54.1 | parallel alternate titling and numbering procedures happening to the same episodes. |
... |
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