Mixed
Longer-muscle length resistance training (LML-RT) produces greater longitudinal hypertrophy (fascicle length increases) and overall muscle size compared to shorter-muscle length resistance training (SML-RT).
To maximize muscle growth, especially in terms of muscle length (fascicle length), prioritize exercises that allow you to train at longer muscle lengths (e.g., deep squats, overhead extensions). While shorter-range training can build muscle, training through a fuller or lengthened range of motion appears to offer a superior hypertrophic advantage, particularly for longitudinal growth.
Our results suggest that both muscle size and fascicle length increases may be greater following LML-RT versus SML-RT, suggesting LML-RT may lead to greater longitudinal hypertrophy than SML-RT.
Why this rating
The review includes 8 studies with mixed results and notes methodological limitations (e.g., linear extrapolation of fascicle length).
Source
Does longer-muscle length resistance training cause greater longitudinal growth in humans?
Milo Wolf et al. · 2024
DOI 10.51224/srxiv.423
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