The Claim

In young untrained men, 11 weeks of 3-set resistance training leads to a 41% improvement in lower-body strength, compared to a 21% improvement with 1-set training, demonstrating a dose-response relationship between training volume and strength gains in novice lifters for leg exercises.

Source: DISSIMILAR EFFECTS OF ONE‐ AND THREE‐SET STRENGTH TRAINING ON STRENGTH AND MUSCLE MASS GAINS IN UPPER AND LOWER BODY IN UNTRAINED SUBJECTS

What the research says

Supports is higher

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

Supports
46score
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.

Quantitative
1 study reviewed
In plain English

If you're a new guy to lifting weights, doing 3 sets of leg exercises 3 times a week for almost 3 months will get you way stronger than doing just 1 set — like 41% stronger versus 21%.

See the scientific wording

Young untrained men show a 41% improvement in lower-body strength after 11 weeks of 3-set resistance training, compared to 21% with 1-set training, indicating a meaningful dose-response relationship for leg exercises in novice lifters.

Why this might work

Doing more sets of leg exercises pushes muscles to work harder and longer, which forces more muscle fibers to activate and grow bigger over time, making the legs stronger.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: DISSIMILAR EFFECTS OF ONE‐ AND THREE‐SET STRENGTH TRAINING ON STRENGTH AND MUSCLE MASS GAINS IN UPPER AND LOWER BODY IN UNTRAINED SUBJECTS

    When new guys lift weights, doing three sets of leg exercises instead of just one makes them much stronger — and this study proves it.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 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.