The Claim

During resistance training-induced muscle hypertrophy, increases in myofibrillar, sarcoplasmic, and other intracellular components occur in relative proportion, resulting in the maintenance of cellular composition.

Source: Cut out the BS. Do THIS to build muscle [3 New Studies]

What the research says

Supports is higher

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

Supports
43score
Challenges
1score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Description
2 studies reviewed
In plain English

When you lift weights and your muscles grow, all the tiny parts inside the muscle cells grow together in balance — so the overall mix inside the cell stays the same.

See the scientific wording

During resistance training-induced hypertrophy, increases in myofibrillar, sarcoplasmic, and other intracellular components occur in relative proportion, maintaining cellular composition.

What the research says

2 studies

  1. Study: Effects of low-load resistance training with blood flow restriction on muscle fiber myofibrillar and extracellular area

    The study looked at muscle changes after resistance training and found that all parts of the muscle fiber grew in proportion, just like the claim says.

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Read analysis

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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