Hypertrophy Past and Present

In this episode of Hypertrophy Past & Present, Jake and Chris explore the use of circuits in hypertrophy training, starting with a 1960s circuit-style routine published by John McCallum. The episode examines how circuit-style training was used in the silver era, before transitioning into a physiology-first breakdown of when circuits might actually make sense for muscle growth today, and when they likely fall short.Key topics include: • A breakdown of McCallum’s Peripheral Heart Action (PHA) circuit routine • Why inserting low-fatigue exercises between compounds can improve performance • How circuits may reduce the exercise order effect across a workout • When circuits might outperform straight sets (and when they won’t) • How to structure circuits using clusters, low reps, and reps in reserve • The practical limitations of circuits in busy gyms

In this episode of Hypertrophy Past & Present, Jake and Chris unpack periodisation for hypertrophy, including what it actually is (and isn’t), why most “periodised” bodybuilding programs end up adding complexity without adding results, and which variables you can change over time without accidentally driving atrophy or accumulating a fatigue debt. The episode opens in 1952 with Clarence Ross’ pre-steroid full-body AAA “favourite routine”. From there, Jake and Chris break down the three main variables people try to periodise in hypertrophy training: volume, rep range, and exercise selection. Key topics include:-Why Clarence Ross’ 1952 full-body plan is a great 'non periodised' template-What is training 'periodisation'-The 3 variables people periodise for hypertrophy: volume, rep range, exercise selection-Why escalating volume blocks can reduce stimulus-Why light-load blocks for 'capillarisation' doesn't potentiate future hypertrophy-The only phase potentiation effect that really makes sense for hypertrophy

In this episode of Hypertrophy Past & Present, Jake and Chris analyse one of Dorian Yates’ early pre-Olympia training programs, breaking down the structure of his torso-limbs split and the intuitive exercise sequencing.From there, the conversation expands into a deeper discussion on exercise selection within a workout, why multiple exercises for the same muscle in a single session can produce a superior stimulus to rotating single exercises across sessions, and how this ties into neuromechanical matching and motor unit recruitment. The episode finishes with Chris addressing common criticisms of neuromechanical matching, explaining why alternative theories fail to explain motor control, efficiency-driven muscle recruitment, and sarcomere adaptation during strength training.Key topics include:Dorian Yates’ early torso-limbs programWhy single-joint “finisher” exercises maintain recruitment levels better than extra setsPractical improvements to Dorian’s plan using modern biomechanicsThe physiological problem with ABC exercise splits for hypertrophyHow to structure multi-exercise workouts without increasing gym timeNeuromechanical matching explained simplyWhy leverage must govern muscle recruitmentWhy active length-tension theories fail as motor control models

In this episode of Hypertrophy Past & Present, Jake and Chris analyse a Golden Era training plan attributed to Larry Scott and Vince Gironda, using it as a lens to explore how hypertrophy programming evolved after the introduction of anabolic drugs. From there, the conversation pivots into a deeper examination of modern debates around exercise selection, “redundant” movements, single vs multi joint training, and the current discussions around form. Chris introduces voluntary activation deficits as the unifying physiological principle.Key topics include:Larry Scott’s Golden Era full-body routineThe limits of motor unit recruitment and voluntary activation deficits"Redundant" exercisesWhy more total muscle mass in an exercise reduces local recruitmentThe form debate and how excessive technique focus can impair hypertrophy outcomes

In this episode of Hypertrophy Past & Present, Jake and Chris take a practical, end-of-year look at the most common mistakes people make when returning to the gym, whether they’re starting fresh in January or jumping back in after time off. Using a pre-steroid era full-body routine attributed to George Eiferman the discussion highlights what earlier bodybuilders consistently got right.From there, the conversation expands into current gym programming trends, including unstable exercise selection, cardio-driven exercises, excercise novelty, poor progress tracking, and misguided injury-prevention strategies. Key topics include:-George Eiferman's "favourite" 1952 full-body routine-Why unstable exercises reduce motor unit recruitment-The problem with excessive cardiovascular demand-Why changing exercises too often prevents meaningful hypertrophy-Progressive overload as a tracking tool-Muscle damage, repeated bout effect, and the risks of rushing back after time off-Why warm-up sets aren't the same as 'warming up'

In this episode of Hypertrophy Past & Present, Jake and Chris shift from the Silver Era into the early anabolic era by analysing a Golden Era training plan from Ken Waller. Using Waller’s 1975 routine as a case study, they explore how bodybuilding training changed as anabolic use became more common. The discussion then transitions into a deep dive on the Weekly Net Stimulus model and why hypertrophy must be understood at the muscle fibre level.Key topics include:Ken Waller’s 1975 Golden Era training split and how it contrasts with Silver Era full-body plansWhy large volumes can appear “unrecoverable” on paper but may differ in practiceVoluntary activation deficits and why muscles cannot be fully activatedMuscle fibre–specific hypertrophyThe Weekly Net Stimulus model: assumptions, limits, and what it can (and can’t) tell usThe role of practical compromises, adherence, and time constraints in real-world programming

In this episode of Hypertrophy Past & Present, Jake and Chris go back to 1945 and break down Clancy Ross’ pre-contest “definition” routine to show how Silver Era lifters tried to get lean using their gym programming. From there they pivot into dieting and how caloric restriction, stress, glycogen, and glucocorticoids actually affect muscle protein synthesis and muscle protein breakdown. Key topics include:Clancy Ross’ 1945 full-body “reducing routine” and why even this questionable plan still beats most modern fat-loss programsA muscle-physiology model of dieting: suppressed MPS and when deficits become a stressor that ramps up muscle protein breakdownWhy anabolics (and even TRT) largely sidestep these dieting problemsPractical tips for naturals: adjusting training volume, keeping frequency high, pre-workout carbs, carb mouth-rinse, post-workout protein, and subjective stress load

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