Youth Resistance Training — Myths vs. Evidence

Several professional bodies (NSCA, American Academy of Pediatrics, ACSM, the UK Strength and Conditioning Association, and an international consensus on youth resistance training) have addressed common myths:

• Myth: "Resistance training stunts growth / damages growth plates." Evidence: there is no scientific evidence that appropriately prescribed and supervised resistance training harms growth, stature, or the epiphyseal (growth) plates. Growth-plate injuries that do occur in youth are typically traumatic and linked to poor technique, maximal/ballistic loads without supervision, or accidents — not properly dosed strength training. Resistance training can actually enhance bone mineral density.
• Myth: "Children can't gain strength because they lack testosterone." Evidence: pre-pubescent children do make meaningful strength gains, primarily through neural adaptations (improved motor unit recruitment/coordination) rather than large increases in muscle size.
• Myth: "It's too dangerous." Evidence: when supervised and progressed sensibly, resistance training has a low injury rate, comparable to or lower than many youth sports; most reported injuries trace to unsupervised activity or improper loading.

Keys to safety: qualified supervision, age-/maturity-appropriate progression, technique mastery before load, submaximal loads, adequate recovery, and a positive, fun environment.

Educational only. Children with health conditions should be cleared and guided by a pediatric clinician.

• No evidence that proper, supervised resistance training stunts growth or routinely harms growth plates.
• Pre-pubescent strength gains are real and largely neural (recruitment/coordination), not hypertrophy.
• Resistance training can improve youth bone mineral density.
• Injury risk is low with supervision; risk rises with poor technique/unsupervised maximal loads.

• youth-training — full youth activity and resistance prescriptions.
• youth-plyometric-considerations — companion power-training myths.
• consult-fitness-instructor — supervision is the key safety factor.