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Observational Study
Copyright: ©Author(s) 2026.
World J Orthop. May 18, 2026; 17(5): 116330
Published online May 18, 2026. doi: 10.5312/wjo.v17.i5.116330
Table 4 Comparison of total body composition and bone health between young men with low and high bone mineral density, mean ± SD

Low BMD (n = 20)
High BMD (n = 20)
P value
Height (cm)176.15 ± 5.16178.60 ± 5.17P > 0.05
Age-matched Z scores-1.95 ± 0.980.73 ± 0.33P < 0.001
Fat mass (g)15138.68 ± 2934.4417934.59 ± 2931.64P < 0.01
Lean mass (g)44836.51 ± 3899.5451262.15 ± 3581.27P < 0.001
Fat-free mass (g)46847.82 ± 4038.8254071.30 ± 3655.75P < 0.001
Overall mass (g)61986.49 ± 6120.1672005.89 ± 5350.26P < 0.001
Fat percentage (%)24.28 ± 2.9524.84 ± 2.91P > 0.05
Bone area (cm2)2030.02 ± 146.482161.97 ± 140.96P < 0.01
Bone mineral content (g)2011.32 ± 169.172602.51 ± 233.95P < 0.001
Bone mineral density (g/cm2)0.99 ± 0.021.20 ± 0.05P < 0.001


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