Stretching Muscles While Lifting Makes Them Grow More
Muscle hypertrophy from partial repetition at long vs. short muscle length: A systematic review and meta-analysis
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
When you lift weights with your muscles stretched out (like at the bottom of a squat or bicep curl), your muscles grow more than when they're bunched up—even if you don't move as far.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 545 / 100
Evidence Score
The highest quality evidence. These studies systematically search, appraise, and synthesize results from multiple individual studies, providing the most reliable summary of current knowledge.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
When you lift weights with your muscles stretched out (like at the bottom of a squat or bicep curl), your muscles grow more than when they're bunched up—even if you don't move as far.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 545 / 100
Evidence Score
The highest quality evidence. These studies systematically search, appraise, and synthesize results from multiple individual studies, providing the most reliable summary of current knowledge.
Publication
Related Content
Claims (8)
When people lift weights through a full motion vs. just part of the motion, the muscles might look like they grow more in one case—but that could just be because the weight feels heavier at different points, not because the muscle is stretched more. So we can’t be sure if stretching the muscle is what’s causing the growth.
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.
Your calf muscle doesn’t squeeze as hard when it’s too short, so doing exercises where it’s stretched might help it grow more. This could also be true for other muscles like your shoulders and chest.
Whether you're working your quads, calves, or biceps, stretching them fully during exercises helps them grow bigger — this works for many different muscles, not just one.
Even if you don’t move through the full range, doing the exercise where your muscle is stretched the most (like halfway down in a squat) builds more muscle than doing it where the muscle is bunched up (like a shallow squat).