SOURCE-LINKED STUDY SUMMARY
Effects of Resistance Training on Muscle Hypertrophy in Children and Adolescents: A Systematic Review and Meta-Analysis
Full paper summarizedQuality not appraised
- What was studied
- A meta-analysis examined whether resistance training increases muscle size in youth.
- Who / model studied
- Twenty-three controlled studies included 1443 children and adolescents, aged 8 to 17.
- Studied dose & schedule
- Resistance training for 8 to 40 weeks, generally 2 to 3 sessions weekly, using varied equipment and training methods.
- What the study found
- Muscle-mass effects were small versus no additional exercise: d=0.22 (95% CI 0.06 to 0.37). Against alternative sport or training, d=0.61 (0.03 to 1.20). Sex differences were inconsistent. Effect sizes are standardized, not kilograms or percentage gains.
- Limitations & context
- Different comparator studies cannot establish superiority over every sport. Small subgroups, influential individual trials, varied programs, and mixed direct and indirect measurements limit conclusions about maturity and sex. Uncertain subgroup findings do not establish an inability to grow muscle.
Read summary source ↗ · Prepared 9/29/2026 · AI-assisted, source-based summary
Review record & corrections
Summary prepared: . Source scope: full paper. 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: 10.1007/s40279-026-02499-0