The Claim

In young women undergoing 8 weeks of twice-weekly resistance training, the spatial pattern of biceps muscle hypertrophy is influenced by the type of biceps curl performed, with incline curls preferentially inducing proximal hypertrophy and preacher curls preferentially inducing distal hypertrophy, indicating that exercise selection can modulate regional muscle growth.

Source: Distinct muscle growth and strength adaptations after preacher and incline biceps curls

What the research says

Supports is higher

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

Supports
49score
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.

How it works
1 study reviewed
In plain English

If young women do bicep curls on an incline bench, they’ll likely grow the upper part of their biceps more, but if they use a preacher curl bench, they’ll grow the lower part more — the way you curl matters for where your muscle grows.

See the scientific wording

In young women performing 8 weeks of resistance training twice weekly, regional muscle growth in the biceps is associated with the type of biceps curl performed, with incline curls favoring proximal hypertrophy and preacher curls favoring distal hypertrophy, suggesting that exercise selection can influence the spatial pattern of muscle development.

What the research says

1 study
  1. Study: Distinct muscle growth and strength adaptations after preacher and incline biceps curls

    The study found that incline curls made the upper part of the biceps grow more, while preacher curls made the lower part grow more, just like the claim says.

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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