The Claim

In young women, 10 weeks of resistance training at 50-80% of 1-repetition maximum intensity and 50% of 1-repetition maximum volume both produce significant and comparable increases in quadriceps muscle size, with gains ranging from 3.1% to 12%, indicating that lower-intensity training can be as effective as higher-intensity training for hypertrophy.

Source: Load‐controlled moderate and high‐intensity resistance training programs provoke similar strength gains in young women

What the research says

Supports is higher

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

Supports
25score
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
1 study reviewed
In plain English

For young women, doing lighter weightlifting for 10 weeks can build leg muscle just as well as heavier lifting, with muscle growth between 3% and 12%.

See the scientific wording

In young women, 10 weeks of resistance training at 50-80% of 1-repetition maximum intensity and 50% of 1-repetition maximum volume both produce significant and comparable increases in quadriceps muscle size, with gains ranging from 3.1% to 12%, indicating that lower-intensity training can be as effective as higher-intensity training for hypertrophy.

What the research says

1 study

  1. Study: Load‐controlled moderate and high‐intensity resistance training programs provoke similar strength gains in young women

    The study shows that both high-intensity and lower-intensity leg workouts made muscles grow about the same amount in young women, just like the claim said.

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.