Is Strength Training Safe for Young Athletes?
Is Strength Training Safe for Young Athletes?
Does lifting stunt a child’s growth? No — supervised strength training is safe and beneficial. Here is what the evidence says, and how to do it right.
A persistent myth says strength training stunts children’s growth or harms growth plates. The evidence says otherwise: properly supervised strength training is safe and beneficial for young athletes — and can even reduce injury risk. Here is what the science shows and how to do it well.
1. The myth, debunked
It does not stunt growth.
Leading bodies — the American Academy of Pediatrics, NSCA and ACSM — support appropriately designed, supervised youth strength training. There is no scientific evidence that it stunts growth or damages growth plates when guidelines are followed.1
2. The benefits
Stronger, and safer.
Supervised strength work can improve strength, motor skills and confidence — and reviews show it can reduce sports-injury risk substantially through better joint stability and coordination.1
3. How to do it safely
Technique and supervision first.
The keys are proper technique, competent supervision, age-appropriate loads, and bodyweight-first progression. Guidelines suggest it is suitable from around age 7–8 once a child can follow instructions, with about 2–3 sessions a week on non-consecutive days.1
4. The right mindset
Not bodybuilding.
Youth strength training is about movement quality and resilience, not maximal lifting or appearance. Done well, it supports injury prevention and long-term development. Get professional guidance before starting a program.
Frequently asked questions
Does strength training stunt a child’s growth?
No — there is no scientific evidence it stunts growth or harms growth plates when proper guidelines are followed.
At what age can children start strength training?
Guidelines suggest from around age 7–8, once a child can follow instructions, with competent supervision.
What are the benefits?
Improved strength, motor skills and confidence — and a substantially reduced sports-injury risk.
Keep exploring
Explore the stories, systems and culture behind Japanese sport.
Sources & notes
- AAP/NSCA/ACSM support for supervised youth resistance training; no growth-plate harm when guidelines followed; injury-risk reduction; age ~7–8, 2–3x/week. AAP; NSCA. General information, not medical advice.
A guide dated 22 June 2026. No copyrighted material is reproduced. General information, not medical advice — consult a qualified professional for any specific concern.
📅 更新履歴
| 日付 | 変更内容 |
|---|---|
| 2026年6月22日 | 初回公開 |
✅ ファクト再検証
最終検証日：2026年6月22日
SportsPulse 編集部が公開情報をもとに内容を確認しています。情報は確認時点のものです。最新情報は各公式サイトをご確認ください。