When the total amount of work and effort are the same, lifting very heavy weights for one repetition at a time results in little to no muscle growth compared to lifting moderately heavy weights for 8...
Strongly contradicted
Multiple high-quality studies challenge this claim.
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When the total amount of work and effort are the same, lifting very heavy weights for one repetition at a time results in little to no muscle growth compared to lifting moderately heavy weights for 8...
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When training volume and effort are matched, single-repetition resistance training at maximal load produces minimal to no muscle hypertrophy compared to training with moderate repetition ranges (e.g., 8–12 reps).
To grow muscle, the fibers must be pulled hard enough and long enough to trigger repair and growth signals. Lifting one very heavy weight does not pull the fibers long enough to fully activate these signals, even if the weight is max. Lifting lighter weights for more reps keeps the fibers under tension longer, which turns on the growth machinery more completely.
What the research says
Supports
0 studies
Contradicts
2 studies
Study: Muscle Hypertrophy, Strength, and Salivary Hormone Changes Following 9 Weeks of High- or Low-Load Resistance Training
This study provides evidence contradicting the claim.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies