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Objective <p>To investigate the effects of structured jumping exercise on femoral neck bone mineral density (BMD) and linear growth in children with short stature. Methods: A prospective controlled trial enrolled 47 prepubertal children (aged 8–11 years; intervention group, <i>n</i> = 20; control group, <i>n</i> = 27). The intervention group completed a 24-week progressive jumping protocol (3 sessions/week, 50&#xa0;min/session), while controls maintained usual routines. Dual-energy X-ray absorptiometry (DXA) assessed lumbar spine and femoral neck BMD. Height gain and BMD changes were evaluated, with mediation analysis exploring indirect effects. Results: The intervention group showed significant improvement in femoral neck BMD Z-scores (Δ = 1.075, <i>p</i> &lt; 0.001, Cohen’s d = 0.869) and greater height gain (Δ = 4.200&#xa0;cm vs. 2.478&#xa0;cm in controls; <i>p</i> = 0.001). Mediation analysis suggested an indirect effect of jumping on height via femoral neck BMD change (β = − 0.442, 95% CI: − 1.474 to − 0.009), with no direct effects observed (<i>p</i> &gt; 0.05). Lumbar spine BMD did not differ between groups (<i>p</i> &gt; 0.05). Conclusions: Jumping exercise appears to preferentially benefit femoral neck BMD; however, further investigation is needed to determine whether this effect is region-specific. These results support structured high-impact activity as a potential adjunctive approach in pediatric growth promotion.</p> Trial registration <p>The study protocol, which was predicated on a true experimental design, was registered with ClinicalTrials.gov (postregistration number ChiCTR2500095544).Registration date 20,250,108.</p>

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Effects of 24-week jumping exercise on bone mineral density and linear growth in children with short stature: a prospective controlled trial

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月13日

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  • Hui ming Wang,
  • Xiang Wang,
  • Xiaonan Wu,
  • Kaiyue Yu,
  • Shuqi Jia,
  • Wen Jiang

摘要

Objective

To investigate the effects of structured jumping exercise on femoral neck bone mineral density (BMD) and linear growth in children with short stature. Methods: A prospective controlled trial enrolled 47 prepubertal children (aged 8–11 years; intervention group, n = 20; control group, n = 27). The intervention group completed a 24-week progressive jumping protocol (3 sessions/week, 50 min/session), while controls maintained usual routines. Dual-energy X-ray absorptiometry (DXA) assessed lumbar spine and femoral neck BMD. Height gain and BMD changes were evaluated, with mediation analysis exploring indirect effects. Results: The intervention group showed significant improvement in femoral neck BMD Z-scores (Δ = 1.075, p < 0.001, Cohen’s d = 0.869) and greater height gain (Δ = 4.200 cm vs. 2.478 cm in controls; p = 0.001). Mediation analysis suggested an indirect effect of jumping on height via femoral neck BMD change (β = − 0.442, 95% CI: − 1.474 to − 0.009), with no direct effects observed (p > 0.05). Lumbar spine BMD did not differ between groups (p > 0.05). Conclusions: Jumping exercise appears to preferentially benefit femoral neck BMD; however, further investigation is needed to determine whether this effect is region-specific. These results support structured high-impact activity as a potential adjunctive approach in pediatric growth promotion.

Trial registration

The study protocol, which was predicated on a true experimental design, was registered with ClinicalTrials.gov (postregistration number ChiCTR2500095544).Registration date 20,250,108.