BPG is committed to discovery and dissemination of knowledge
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 3 Comparison of trunk 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
Trunk fat mass (g)6652.34 ± 1486.677915.93 ± 1333.12P < 0.01
Trunk lean mass (g)21137.79 ± 1743.0924192.21 ± 1778.35P < 0.001
Trunk bone mineral content (g)558.32 ± 43.96828.76 ± 49.82P < 0.001
Trunk fat-free mass (g)21696.12 ± 1773.1025020.98 ± 1789.99P < 0.001
Trunk overall mass (g)28348.46 ± 2740.0332936.90 ± 2463.52P < 0.001
Trunk fat percentage (%)23.31 ± 3.4424.55 ± 3.09P > 0.05
Left subcostal bone area (cm2)129.31 ± 12.73138.28 ± 12.35P < 0.05
Left subcostal bone mineral content (g)80.73 ± 8.93108.37 ± 13.76P < 0.001
Left subcostal bone mineral density (g/cm2)0.62 ± 0.030.78 ± 0.04P < 0.001
Right subcostal bone area (cm2)133.21 ± 15.68142.44 ± 12.28P < 0.05
Right subcostal bone mineral content (g)81.04 ± 10.62110.69 ± 11.10P < 0.001
Right subcostal bone mineral density (g/cm2)0.61 ± 0.040.78 ± 0.04P < 0.001
Thoracic vertebral bone area (cm2)126.90 ± 9.92138.77 ± 11.72P < 0.01
Thoracic vertebral bone mineral content (g)97.53 ± 10.83138.70 ± 13.19P < 0.001
Thoracic vertebral bone mineral density (g/cm2)0.77 ± 0.051.00 ± 0.06P < 0.001
Lumbar vertebral bone area (cm2)60.09 ± 5.7565.47 ± 8.49P < 0.05
Lumbar vertebral bone mineral content (g)58.20 ± 7.4178.39 ± 10.03P < 0.001
Lumbar vertebral bone mineral density (g/cm2)0.97 ± 0.081.20 ± 0.09P < 0.001
Pelvic bone area (cm2)235.37 ± 23.82286.78 ± 18.20P < 0.001
Pelvic bone mineral content (g)240.84 ± 22.26392.60 ± 32.14P < 0.001
Pelvic bone mineral density (g/cm2)1.03 ± 0.061.37 ± 0.10P < 0.001


Write to the Help Desk