SOURCE-LINKED STUDY SUMMARY
Higher Myonuclei Density in Muscle Fibers Persists Among Former Users of Anabolic Androgenic Steroids.
Abstract summarizedQuality not appraised
- What was studied
- A cross-sectional muscle-biopsy study compared current steroid users, former users and non-user controls for possible cellular muscle memory.
- Who / model studied
- 25 recreationally strength-trained men: 8 current users, 7 former users and 10 controls; participants were aged 18 to 50.
- Studied dose & schedule
- No treatment was assigned. Median accumulated steroid use was 174 weeks in current users and 140 weeks in former users; former users had stopped for a geometric mean of 4.0 years.
- What the study found
- Former users had higher myonuclear density in type II muscle fibers than controls, consistent with a possible lasting cellular adaptation.
- Limitations & context
- This observational snapshot cannot prove causation, permanence or faster muscle regrowth. It measured cellular characteristics, not a retraining response.
Read summary source ↗ · Prepared 9/25/2026 · AI-assisted, source-based summary
Review record & corrections
Summary prepared: . Source scope: abstract. This is an AI-assisted source summary, not an independent clinician sign-off.
No public field-by-field revision history is available for this card yet. The date above is the summary date, not proof that every field was updated then.
Inspect the source · Correction policyResearch findings apply to the population and conditions studied. This educational summary is not a treatment recommendation or a formal assessment of study quality.
Original publication ↗ · DOI: 10.1210/clinem/dgad432