Table 2. Bone and body composition values at baseline, 8 months, and 44 months (mean ± SD) for controls and intervention subjects based on intention-to-treat analysis (n = 99).
Parameter | Controls | Intervention | p-value |
(n = 52) | (n = 47) | ||
FN BMC at baseline (g) | 4.08±0.49 | 4.07±0.72 | 0.94 |
FN BMC at 8 months (g) | 4.19±0.52 | 4.37±0.96* | 0.22 |
FN BMC at 44 months (g) | 4.30±0.77* | 4.48±0.96* | 0.29 |
LS BMC at baseline (g) | 34.3±5.7 | 34.6±7.2 | 0.82 |
LS BMC at 8 months (g) | 35.9±6.5* | 37.3±7.7* | 0.32 |
LS BMC at 44 months (g) | 38.9±10.4* | 40.1±9.1* | 0.54 |
WB BMC at baseline (g) | 2161±253 | 2183±373 | 0.73 |
WB BMC at 8 months (g) | 2212±254* | 2300±387* | 0.19 |
WB BMC at 44 months (g) | 2319±385* | 2397±393* | 0.33 |
Calcaneal BUA at baseline (dB/MHz) | 80.2±15.3 | 77.8±10.8 | 0.38 |
Calcaneal BUA at 8 months (dB/MHz) | 81.1±14.6 | 80.3±10.3* | 0.76 |
Calcaneal BUA at 44 months (dB/MHz) | 80.9±18.6 | 81.0±11.2* | 0.96 |
Lean mass at baseline (g) | 31993±4220 | 34699±7111 | 0.02 |
Lean mass at 8 months (g) | 32974±5148* | 36993±7591* | 0.01 |
Lean mass at 44 months (g) | 36077±8869* | 39171±8362* | 0.08 |
Body mass index at baseline (kg/m2) | 20.0±3.5 | 20.0±3.5 | 0.98 |
Body mass index at 8 months (kg/m2) | 20.4±3.3* | 20.5±3.3* | 0.90 |
Body mass index at 44 months (kg/m2) | 21.1±4.0* | 20.7±3.3 | 0.65 |
Fat mass at baseline (g) | 17245±4984 | 17763±7163 | 0.68 |
Fat mass at 8 months (g) | 17220±5337 | 17332±7234 | 0.93 |
Fat mass at 44 months (g) | 18410±6137* | 17919±7549 | 0.72 |
Percent fat mass at baseline | 25.5±5.3 | 25.0±7.3 | 0.74 |
Percent fat mass at 8 months (g) | 24.9±5.9 | 23.5±7.7* | 0.32 |
Percent fat mass at 44 months (g) | 25.0±5.7 | 23.3±8.0* | 0.21 |
Key: BUA, broadband ultrasound attenuation; FN BMC, femoral neck bone mineral content; LS BMC, lumbar spine bone mineral content; WB BMC, whole body bone mineral content.
represents significant difference with baseline measure.