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Cellular
Type IIa and IIx muscle fiber cross-sectional area (CSA) increased more in the FAST trained arm compared to the SLOW trained arm.
Emphasizing faster training velocities may enhance specific muscle fiber growth.
StrongSupportsmedium confidence
Type IIa and IIx muscle fiber CSA increased in both arms, but the increases were greater in the FAST vs the SLOW trained arm ( P <0.05).
Why this rating
The study design includes direct measurement of muscle fiber size.
Source
Short‐term high‐ vs low‐velocity isokinetic lengthening training results in greater hypertrophy of the elbow flexors in young men
Tim N. Shepstone et al. · Scandinavian Journal of Medicine and Science in Sports · 2005
DOI 10.1111/j.1600-0838.2005.453_1.x
other · n=21Cited 28×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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