The Claim

In trained individuals, muscle hypertrophy is small and follows a linear-logarithmic adaptation pattern, which necessitates large sample sizes to detect meaningful differences between resistance training methods.

Source: The effects of lengthened-partial range of motion resistance training of the limbs on arm and thigh muscle cross-sectional area

What the research says

Supports is higher

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

Supports
71score
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.

Description
1 study reviewed
In plain English

When people who already work out build muscle, they don’t get much bigger very fast, and the gains slow down over time—so to tell if one workout plan is better than another, you’d need to study a lot of people.

See the scientific wording

Muscle hypertrophy in trained individuals is small and follows a linear-logarithmic adaptation pattern, making it difficult to detect meaningful differences between resistance training methods without large sample sizes.

What the research says

1 study

  1. Study: The effects of lengthened-partial range of motion resistance training of the limbs on arm and thigh muscle cross-sectional area

    This study found that two different ways of lifting weights produced almost the same tiny muscle gains in people who already train regularly—so small that you need a huge group of people to even notice the difference. This matches the claim that muscle growth gets really hard to improve once you're trained.

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.

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