Hypertrophy Past and Present 041 New study shows twice as much volume doesn't cause extra muscle growth
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Mar 2, 2026 They trace Sergio Oliva’s old high‑volume split and critique its exercise choices. A new study comparing ~18 vs ~32 weekly leg sets is dissected and the surprising lack of extra muscle with super‑high volume is highlighted. They debate whether damage is a resource drain or simply fatigue and explore how supraspinal fatigue, swelling, and no fascicle length change affect volume programming.
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Sergio Oliva's High Volume Six Day Split
- Sergio Oliva used an extremely high-volume late-Silver Era split training six days a week with many supersets and consecutive training days.
- Example: his plan included two chest/back days (7 sets bench each), two abs/leg days (one with 10x50 sit-ups), and only one day off per week.
Doubling Sets Did Not Increase Quad Hypertrophy
- The new within-subject human study compared ~18 sets/week versus ~32 sets/week on each leg and found both increased size but no difference between volumes.
- Protocol: leg press and knee extension twice weekly with 2-minute rests producing large metabolic fatigue and decreasing load across sets.
Short Rests Turn Volume Into Recruitment-Limiting Fatigue
- Short rest periods increased metabolic and supraspinal fatigue, reducing motor unit recruitment later in sessions and limiting the damaging stimulus.
- Mechanism: 2-minute rests filled muscles with metabolites, so later sets hit failure via reduced recruitment not pure mechanical/calcium stress.