027 Are 4 reps optimal?! New study: stimulating reps vs volume load
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 routinesHow anabolic steroids break the feedback loop and drive the shift toward extreme training volumesA new heavy vs light load study in trained liftersWhat this means for the stimulating reps model, volume load, and rep ranges for natural vs enhanced lifters
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1:12:37
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1:12:37
026 How does insufficient sleep affect hypertrophy / atrophy?
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 planThe difference between immobilisation/diet-induced atrophy vs stress/sleep-loss-induced atrophy Practical programming changes when sleep is poorWhy dieting hard while sleep-deprived is a recipe for muscle loss in naturals, and why enhanced lifters often don’t experience the same downside
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1:19:57
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1:19:57
025 How does insufficient sleep affect training?
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 programSleep deprivation vs restriction vs cumulative sleep debtHow insufficient sleep affects hypertrophy training performancePractical strategies for adjusting a workout after poor sleep
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55:51
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55:51
024 Training, hypertrophy, and recovery for older people
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 liftersIntra-session fatigue control in older liftersProgramming for older lifters: volume, RIR, exercise selection, frequencyIsometrics for older lifters
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1:04:26
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1:04:26
023 Fatigue accumulation and what to do about it.
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 routineBack-off sets: why back-offs add soreness but little stimulusThe three post-workout fatigue mechanisms (ECC failure, muscle damage, supraspinal CNS): timelines, interactions, and accumulationHow swapping exercises can re-hit damaged fibres and accumulate fatiguePractical programming, typical recovery times, and fatigue-debt math
A deep dive into the science of muscle growth. Hosted by Chris Beardsley and Jake Doleschal, this podcast explores hypertrophy training through the lens of pre-steroid era bodybuilding and modern muscle physiology.
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