The Claim

When training volume is equated, powerlifting-style training (7 sets of 3RM with 3-minute rest periods) and bodybuilding-style training (3 sets of 10RM with 90-second rest periods) result in similar muscle hypertrophy (approximately 12.6-12.7% increase), but powerlifting-style training yields greater strength gains (10.9% vs. 8.1% increase).

Source: Can 3-5 Reps Truly Maximize Growth? (New Study)

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
45score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
3 studies reviewed
In plain English

If you do the same total amount of weightlifting work, lifting heavy weights with longer breaks and lifting lighter weights with shorter breaks both build muscle about the same, but lifting heavy gives you more strength.

See the scientific wording

When training volume is equated, powerlifting-style training (7 sets of 3RM with 3min rest) and bodybuilding-style training (3 sets of 10RM with 90s rest) produce similar muscle hypertrophy (~12.6-12.7%), but powerlifting-style training yields greater strength gains (10.9% vs 8.1%).

What the research says

3 studies
  1. Study: Effects of Different Volume-Equated Resistance Training Loading Strategies on Muscular Adaptations in Well-Trained Men

    The study looked at the same workouts as the claim and found that both built muscle equally, but the powerlifting style made people stronger, just like the claim said.

  2. Study: Effects of Different Volume-Equated Resistance Training Loading Strategies on Muscular Adaptations in Well-Trained Men

    The study tested the exact same workouts as the claim and found that both built muscle equally, but the powerlifting style made people stronger, just like the claim said.

  3. Study: Muscle hypertrophy and strength gains after resistance training with different volume matched loads: a systematic review and meta-analysis.

    The study looked at lifting heavy weights for fewer reps versus lighter weights for more reps and found that both build muscle similarly, but heavy weights make you stronger faster, which matches the claim.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 3 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.