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[@RenaissancePeriodization] These Undertrained Muscles Are Ruining Your Physique

· 3 min read

@RenaissancePeriodization - "These Undertrained Muscles Are Ruining Your Physique"

Link: https://youtu.be/IMNjp8nXAAU

Duration: 15 min

Transcript: Download plain text

Short Summary

RP, the expert behind the RP Hypertrophy app, argues that side delts should be trained first in the session with 3-6 sets across two different exercises and hit 2-4 times per week rather than the typical 1-2 times per week. He also claims that bigger side delts visually shrink the waist because the eye judges waist width relative to shoulder width rather than in isolation.

Key Quotes

  1. "The triceps are like 2/3 of the arm size you can potentially get." (00:10:56)
  2. "to the human eye, and especially the female human eye, the calculations on waist width [music] are made in reference to shoulder width, not by itself." (00:06:24)
  3. "Do you guys remember the cartoon character Johnny Bravo? He was jacked, but women despised him. Was it because of his curt and self-infatuated demeanor? God, no. It's because his biceps were too big for his triceps." (00:10:44)
  4. "Shit, three sets of side delts let you heal like a few hours later or something. Training delts once or twice a week won't cut it." (00:04:04)
  5. "Your delts can recover super fast and love volume like Jared Feather, IFBB pro, likes toxic big booty latinas. A lot is what I'm trying to say." (00:05:35)

Detailed Summary

Episode Summary: RP on Side Delt Growth

Background

  • RP, the figure behind the RP Hypertrophy app (Renaissance Periodization line of content), delivers hypertrophy advice targeted at physique-focused lifters.

Core Recommendation: How to Grow Side Delts

  • Train side delts first in the workout. RP recommends prioritizing them at the start of the session so they receive the highest performance and focus.
  • Volume: 3-6 sets total spread across two different side delt exercises within the session.
  • Frequency: hit side delts 2-4 times per week, explicitly going against the common 1-2 times per week approach that most lifters default to.
  • The combined prescription (first-in-session placement + higher weekly frequency) is positioned as the protocol that actually drives measurable side delt hypertrophy.

The "Why It Matters" Claim

  • Bigger side delts make the waist appear smaller.
  • The mechanism is perceptual: the human eye calculates waist width in reference to shoulder width, not on the waist's own absolute size.
  • Practical implication: building side delts can exaggerate the V-taper aesthetic without any actual change to waist circumference.

Key Numbers at a Glance

  • 3-6 sets per session
  • 2 different side delt exercises
  • 2-4x/week training frequency (vs. the typical 1-2x/week)