Partial ROM Training for Strength, and Protein Requirements for Muscle Growth
The Stronger By Science Podcast
The Relationship Between Protein Intake and Fat Freemass Gains
Protein intake in grams per kilogram per day is explaining about 12 or 13 percent of the variance in gains in fat freemass. The authors used a breakpoint analysis in the original paper which means they would suggest that a linear trend is not the appropriate trend line for this data. So when you add in the non-linear Trend line with a breakpoint in it you start to see where that 1.6 number comes from right?
Today’s episode begins with a discussion about an ambitious experiment in the world of academic publishing, and the real-world costs of striving for bench press excellence. After that, Greg presents a segment about partial range-of-motion (ROM) training for strength outcomes. Greg digs into the available research about whether or not partial reps can be used to facilitate greater strength gains, and provides practical recommendations about when and how to incorporate this style of training. That’s followed by Eric’s segment that tackles a fairly widespread misconception about protein requirements for muscle growth. Many people believe that 1.6 g/kg/day is a very clear minimum requirement for supporting hypertrophy, and that falling a little bit short of this target severely limits muscle growth. However, the data suggest otherwise. He explores the available research and discusses some protein target recommendations for people who are prioritizing muscle growth or retention.
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TIME STAMPS
Intro/Announcements (0:00)
An innovation in academic publishing (4:53)
- https://www.journals.uchicago.edu/doi/10.1086/700070
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1420798/
- https://scholarlykitchen.sspnet.org/2018/09/26/the-rise-of-peer-review-melinda-baldwin-on-the-history-of-refereeing-at-scientific-journals-and-funding-bodies/
Reviewing Greg’s shitpost (19:39)
Combining ROMs for larger strength gains? (25:12)
The history and tradition of partial-ROM training (29:39)
Study #1 (Bazyler) (38:51)
Study #2 (Gillingham) (40:14)
Study #3 (Pedrosa) (43:14)
Study #4 (Whaley) (45:07)
Summary of findings and mechanisms (46:56)
Conclusions and practical applications (56:20)
How much protein do you actually need for muscle growth? (1:01:38)
What are the most important dietary metrics to track and manipulate for a hypertrophy-oriented diet? (1:01:55)
New meta-analysis by Nunes et al (1:05:18)
The 2018 meta-analysis by Morton and colleagues (1:13:04)
What if we only look at values above 1.2 g/kg/day? (1:19:01)
A note on “leave-one-out” analyses and cherry-picking (1:20:41)
What if we only look at values above 1.24 g/kg/day? (1:27:54)
Summary and conclusions (1:31:07)
Practical applications (1:37:25)
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- BulkSupplements: Next time you stock up on supplements, be sure to use the promo code “SBSPOD” (all caps) to get 5% off your entire order.
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