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Table 3 Mediation role of lean soft tissue on the association between training volume and BMD (n = 299).

From: Influential role of lean soft tissue in the association between training volume and bone mineral density among male adolescent practitioners of impact-loading sports: ABCD Growth study

Mediator

aBMD (g/cm²)

Total effect

p-value

Direct effect

p-value

Indirect effect

p-value

%Mediated

R²

Boys (n = 299)

Upper limbs

0.00243

0.009

0.00101

0.286

0.00142

0.002

58.37%

0.64

Lower limbs

0.00753

< 0.001

0.00562

< 0.001

0.00191

0.001

25.32%

0.78

Spine

0.00445

0.001

0.00296

0.007

0.00149

0.002

33.55%

0.67

Whole body

0.00465

< 0.001

0.00307

< 0.001

0.00158

0.001

33.96%

0.75

  1. Note: model adjusted for age, fat mass, age at peak of height velocity, and modality; LST lean soft tissue; aBMD areal bone mineral density. % mediation was only estimated for a significant indirect effect with a significant total effect.
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BMC Pediatrics

ISSN: 1471-2431

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