The Claim

In advanced male judo athletes, performing 6 weeks of heavy-load resistance training at 80% of one-repetition maximum (1RM) to muscular failure leads to greater increases in muscle thickness and isometric strength compared to light-load ballistic training at 30% 1RM also performed to muscular failure, indicating that heavier loads may be more effective for enhancing hypertrophy and strength gains when both training protocols reach muscular failure.

Source: Resistance training leading to repetition failure increases muscle strength and size, but not power-generation capacity in judo athletes

What the research says

Supports is higher

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

Supports
60score
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.

Cause and effect
1 study reviewed
In plain English

For male judo athletes who are already pretty advanced, lifting heavy weights for 6 weeks might build more muscle and strength than doing fast, light lifts—even if both workouts push muscles to the max.

See the scientific wording

In advanced male judo athletes, 6 weeks of heavy-load resistance training (80% 1RM) to repetition failure results in larger increases in muscle thickness and isometric strength compared to light-load ballistic training (30% 1RM) to repetition failure, suggesting that heavier loads may be more effective for hypertrophy and strength gains even when both protocols reach muscular failure.

Why this might work

When advanced judo athletes lift heavier weights to failure, their muscle fibers experience more forceful stretching and squeezing, which triggers more protein building and activates more muscle cells, leading to bigger muscles and stronger contractions — this is seen in studies comparing heavy and light training to failure (10.1371/journal.pone.0307841)

Supported mechanismbased on 1 study

What the research says

1 study

  1. Study: Resistance training leading to repetition failure increases muscle strength and size, but not power-generation capacity in judo athletes

    In advanced male judo athletes, lifting heavier weights for 6 weeks built more muscle and strength than lifting lighter weights fast—even when both methods pushed muscles to their limit. Heavier weights won.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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