In this episode of Hypertrophy: Past & Present, Jake and Chris use a 1967 Bill Pearl program to jump from the silver era into the early steroid era, showing how training volume exploded once anabolics entered the picture. They contrast Bill Pearl’s high-volume, six-day split and contrast it with his earlier natural-era programming, before diving into a new study comparing heavy versus light loads in trained lifters and what it really means for stimulating reps, volume load, and rep range choices.

Key topics include:

• Bill Pearl’s 1967 high-volume, six-day split and how it differs from his natural-era routines
• How anabolic steroids break the feedback loop and drive the shift toward extreme training volumes
• A new heavy vs light load study in trained lifters
• What this means for the stimulating reps model, volume load, and rep ranges for natural vs enhanced lifters

In this episode of Hypertrophy: Past & Present, Jake and Chris dive into a Bill Pearl full-body routine, using it as a bridge between the pre-steroid silver era and the early anabolic era. From there, they shift into part two of their sleep series, unpacking how sleep loss influences muscle atrophy and recovery in natural lifters.

Key topics include:

• Bill Pearl’s 1957 full-body plan
• The difference between immobilisation/diet-induced atrophy vs stress/sleep-loss-induced atrophy 
• Practical programming changes when sleep is poor
• Why dieting hard while sleep-deprived is a recipe for muscle loss in naturals, and why enhanced lifters often don’t experience the same downside

In this episode of Hypertrophy: Past & Present, Jake and Chris break down Bob Hoffman’s basic athletic program through a modern physiology lens and unpack how insufficient sleep impacts training performance.

Key topics include:

• Bob Hoffman’s silver era full-body athlete hypertrophy program
• Sleep deprivation vs restriction vs cumulative sleep debt
• How insufficient sleep affects hypertrophy training performance
• Practical strategies for adjusting a workout after poor sleep

In this episode of Hypertrophy: Past & Present, Jake and Chris discuss Silver-Era author Peary Rader’s “training as you get older” guidelines and dive into how to construct a modern, physiology-led template for older lifters.

Key topics include:

• Why recovery, not “low stimulus sensitivity” likely limits muscle growth in older lifters
• Intra-session fatigue control in older lifters
• Programming for older lifters: volume, RIR, exercise selection, frequency
• Isometrics for older lifters

In this episode of Hypertrophy: Past and Present, Jake and Chris unpack a Silver-Era routine passed from 1950 Mr America John Farbotnik to Gene Mozee at a time where high volume plans were taking over bodybuilding. From there they go deep into accumulating fatigue, how excitation–contraction coupling failure, muscle damage, and supraspinal CNS fatigue interact across sessions, why exercise novelty and split design can make this worse, and how to calculate and clear your “fatigue debt” without losing muscle.

Key topics include:

• John Farbotnik full body routine
• Back-off sets: why back-offs add soreness but little stimulus
• The three post-workout fatigue mechanisms (ECC failure, muscle damage, supraspinal CNS): timelines, interactions, and accumulation
• How swapping exercises can re-hit damaged fibres and accumulate fatigue
• Practical programming, typical recovery times, and fatigue-debt math

In this episode of Hypertrophy: Past and Present, Jake and Chris unpack Steve Reeves’ 1947 pre-competition full-body routine, then dive into why the Silver-Era were such advocates of orange juice + honey during training. We assess the building research on carbohydrate mouth-rinsing, what this tells us about supraspinal CNS fatigue, and how the performance increase from carbohydrate mouth-rinsing differs from the performance increase from creatine supplementation. 

Key topics include:

• Steve Reeves’ 1947 pre-comp full-body plan
• What carbohydrate mouth-rinsing is doing and intra-workout carbohydrates
• Why everyone experiences supraspinal CNS fatigue during strength training and what you can do about it
• Why creatine adds reps without adding stimulus, but carbs can add stimulating reps

In this episode of Hypertrophy: Past and Present, Jake and Chris break down Dick DuBois’ 1954 full-body routine (and we finally have some pull-ups!). They then tackle the “half-set” myth, why counting half sets for secondary muscles make any sense and how to adjust multi joint exercises to bias growth in a particular muscle.

Key topics include:

• Dick DuBois’ 1954 full-body plan
• The “Half-Set” problem 
• Damage in secondary muscles
• Using multi joint exercises in beginner vs advanced lifters

In this episode of Hypertrophy: Past and Present, Jake and Chris use Peary Rader’s leg routine to outline a practical, physiology-led blueprint for muscle specialisation.

Key topics include:

• Peary Rader’s pre-steroid era leg routine (and the changes we would make today)
• A framework for designing a muscle specialisation phase for any muscle
• When to specialise and how to integrate it into your main plan without losing your progress
• Writing programs using science-based (mechanisms) vs evidence-based (outcomes)

In this episode of Hypertrophy: Past and Present, Jake and Chris start by discussing one of the most widely used methods of the Silver Era; the 20 rep squat. They then dive into the physiology of cluster sets: what they are, how they differ from rest-pause and drop sets, and how cluster sets can be programmed to offer benefits over traditional straight sets. 

Key topics include:

• Reg Park chest specialisation phase (including the classic 20-rep breathing squat method)

• Fatigue mechanisms in clusters explained: metabolite, calcium-ion, spinal, and supraspinal fatigue

• Clusters vs rest-pause vs drop sets

• Practical guidelines for programming clusters

In this episode of Hypertrophy: Past and Present, Jake and Chris unpack Reg Park’s calf-specialisation phase before discussing the physiology of pauses: when they work, when they don’t, and how they compare to partial reps.

Key topics include:

• Reg Park’s 1952 calf-specialisation program
• Straight-leg vs bent-leg calf work and how they bias gastroc vs soleus
• The physiology of pause fatigue: metabolite vs calcium-related mechanisms
• Why static “passive” stretching isn’t the same as active pause contractions
• How to assess whether a given exercise will actually benefit from pauses