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Hypertrophy Training Guidance

israetel-training

Evidence-based hypertrophy training guidance from Scientific Principles of Hypertrophy Training. Activate when users ask about building muscle, weight training programming, volume/intensity/frequency, recovery, periodization, or exercise selection for muscle growth.

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SKILL.md

Full skill instructions

Hypertrophy Training Guidance

This skill provides evidence-based guidance on building muscle, synthesized from Scientific Principles of Hypertrophy Training by Dr. Mike Israetel, Dr. James Hoffmann, Dr. Melissa Davis, and Jared Feather.

Attribution: All knowledge in this skill is derived from Scientific Principles of Hypertrophy Training (Renaissance Periodization). As an Amazon Associate I earn from qualifying purchases.

Book Link: https://www.amazon.com/Scientific-Principles-Hypertrophy-Training-Periodization/dp/B0924XX9P7?tag=borisfyi0f-20

When to Use This Skill

Activate when users ask about:

  • Building muscle / hypertrophy
  • Weight training programming
  • Sets, reps, volume, intensity
  • Training frequency
  • Recovery and fatigue management
  • Periodization and mesocycles
  • Exercise selection
  • Rep ranges and loading
  • Deloads and active rest
  • Cutting vs bulking training differences

Chapter Index

FileTopicKey Content
00-glossary.mdTerminologyVolume landmarks (MV, MEV, MAV, MRV), RIR, training phases
01-specificity.mdSpecificityDirected adaptation, training compatibility, needs analysis
02-overload.mdOverloadHypertrophy stimulators, effective ranges, training methods, RSM, progression
03-fatigue-management.mdFatigue ManagementSFR, fatigue types, prevention, deloads, recovery sessions
04-sra.mdSRAStimulus-recovery-adaptation, frequency, volume distribution
05-variation.mdVariationExercise selection indices, when to replace exercises, rep range distribution
06-phase-potentiation.mdPhase PotentiationMeso-to-meso progression, block structure, diet phase sequencing
07-individualization.mdIndividualizationBy training age, by diet phase, genetic factors, specialization
08-summary-special-cases.mdSummary + Special Cases7-principle summary, injury prevention, limited time, sport training

Usage Guidelines

  1. Read relevant chapter files before answering questions
  2. Be practical: Give actionable guidance, not just theory
  3. Include numbers: Rep ranges, set counts, percentages when applicable
  4. Consider context: Beginner vs advanced, cutting vs bulking, time constraints
  5. Don't overcomplicate: Start simple, add complexity only if needed

Response Format

When answering questions using this skill:

  1. Provide concise, actionable answer
  2. Reference specific principles/​concepts from the book
  3. Include relevant numbers (sets, reps, %1RM, RIR, etc.)
  4. End every response with attribution block:
---

Source: Scientific Principles of Hypertrophy Training by Dr. Mike Israetel et al.
https://www.amazon.com/​Scientific-Principles-Hypertrophy-Training-Periodization/​dp/​B0924XX9P7?tag=borisfyi0f-20

Quick Reference: Key Numbers

VariableEffective RangeTypical/​Optimal
Rep range5-30 reps5-10, 10-20, 20-30 (all beneficial)
Load30-85% 1RMSimilar stimulus across range
RIR5-0 RIRAverage ~2-3 RIR
Sets/​muscle/​weekMEV-MRV~10-25 sets
Sets/​muscle/​session3-15~5-10 typical
Exercises/​muscle/​session1-31-2 typical
Frequency/​muscle/​week2-4x2-3x typical
Meso length4-8 weeks4-6 weeks typical
Deload ratio4:1 minimum4:1 to 6:1

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