040 This new study will change how you think about fatigue

040 This new study will change how you think about fatigue

From Hypertrophy Past and Present by Chris Beardsley and Jake Doleschal

February 23, 2026 · 1h 26m · Episode 48

About this episode

The episode discusses a new study on fatigue and its impact on hypertrophy and muscle growth.

In this episode of Hypertrophy Past & Present , Jake and Chris unpack a new hypertrophy study that illustrates how fatigue doesn’t just make training harder but can directly reduce the hypertrophic stimulus by lowering single-fibre mechanical tension. The episode opens in the Silver Era again with Henry Paschal’s 1950 “busy person” program then pivots into the core discussion: why fatigue mechanisms (CNS and calcium-ion related) dampen muscle growth, and what this implies for exercise order, rep ranges, and advanced training methods. Key topics include: Henry Paschal’s 1950 routine A new “repetition duration” study How CNS fatigue and calcium-ion fatigue both serve the same function Why max effort and slow velocity don’t always equal max recruitment and max tension Programming implications: exercise order, rep ranges, RIR, clusters, and isometrics

People in this episode

Hosts: Chris Beardsley, Jake Doleschal

Topics covered

  • hypertrophy
  • fatigue mechanisms
  • CNS fatigue
  • calcium-ion fatigue
  • exercise programming
  • training methods

Keywords

  • fatigue
  • hypertrophy
  • CNS
  • calcium-ion
  • exercise order
  • rep ranges
  • training methods

Mentioned in this episode

Books & works: 1950 “busy person” program, new “repetition duration” study

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