The Claim

In mouse gastrocnemius muscle, passive repetitive stretching is associated with increased mRNA expression of p70S6K and myogenin, genes involved in muscle protein synthesis and myogenic differentiation, suggesting activation of anabolic signaling pathways.

Source: Efficacy of passive repetitive stretching of skeletal muscle on myofiber hypertrophy and genetic suppression on MAFbx, MuRF1, and myostatin

What the research says

Roughly balanced

Support and challenge are close. The picture may shift as more studies come in.

Supports
7score
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.

Correlation
1 study reviewed
In plain English

Stretching mouse leg muscles regularly seems to turn on genes that help build muscle and repair muscle cells.

See the scientific wording

In mouse gastrocnemius muscle, passive repetitive stretching was associated with upregulated mRNA expression of p70S6K and myogenin—genes involved in muscle protein synthesis and myogenic differentiation—suggesting activation of anabolic signaling pathways.

What the research says

1 study

  1. Study: Efficacy of passive repetitive stretching of skeletal muscle on myofiber hypertrophy and genetic suppression on MAFbx, MuRF1, and myostatin

    The study stretched mouse leg muscles in a specific way and found that it turned on genes linked to muscle growth, 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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