The Claim

The cumulative mechanical work performed on a muscle during resistance training, quantified as the integral of force over time, directly determines the magnitude of hypertrophic signaling pathways activated in skeletal muscle.

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
25score
Challenges
12score

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
2 studies reviewed
In plain English

The total amount of work your muscles do when lifting weights — how hard and how long you push — decides how strong the muscle-building signals get turned on.

See the scientific wording

The cumulative mechanical work performed on a muscle during resistance training, represented as the integral of force over time, determines the magnitude of hypertrophic signaling.

What the research says

2 studies

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

    The study found that lifting lighter weights with more reps gave similar muscle growth as lifting heavier weights, as long as the total work was the same. This supports the idea that total effort over time matters most for muscle growth.

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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.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.