The Claim

Lengthened partial range-of-motion resistance training induces greater regional muscle hypertrophy in the distal regions of the quadriceps compared to full range-of-motion or shortened range-of-motion training protocols.

Source: Training BEYOND Failure - This NEW Study is Epic

What the research says

Supports is higher

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

Supports
50score
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
2 studies reviewed
In plain English

Doing certain types of leg exercises that don't go through the full movement might build more muscle near the knee than doing the same exercises through the full motion.

See the scientific wording

Lengthened partial range-of-motion training promotes greater regional hypertrophy in the distal portions of the quadriceps compared to full or shortened ROM training.

What the research says

2 studies
  1. Study: Muscle hypertrophy from partial repetition at long vs. short muscle length: A systematic review and meta-analysis

    Training muscles while they're stretched leads to more growth in the lower part of the quads compared to training with shorter movements or full reps, which this study confirms.

  2. Study: Partial range of motion training elicits favorable improvements in muscular adaptations when carried out at long muscle lengths

    The study found that doing knee extensions through a partial range that starts with a straight leg builds more muscle at the top of the thigh, especially near the knee, compared to other ways of doing the exercise.

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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