TABLE 2.
Cortical geometry of the tibia mid-diaphysis in OLETF rats fed a Western-style diet with SPI, MPI, or MIX1
| SPI | MIX | MPI | P-value (Diet)2 | |
|---|---|---|---|---|
| Tibia length, mm | 44.60 ± 0.30 | 45.04 ± 0.36 | 44.46 ± 0.32 | 0.43 |
| Tibia diameter, mm | 3.93 ± 0.08 | 3.99 ± 0.08 | 3.92 ± 0.08 | 0.78 |
| Tt.Ar, mm2 | 9.75 ± 0.11 | 9.89 ± 0.11 | 9.91 ± 0.10 | 0.43 |
| Ma.Ar, mm2 | 2.52 ± 0.06 | 2.69 ± 0.06 | 2.59 ± 0.06 | 0.11 |
| Ct.Ar, mm2 | 7.22 ± 0.12 | 7.20 ± 0.11 | 7.32 ± 0.12 | 0.74 |
| Ct.Ar/Tt.Ar, mm2 | 0.74 ± 0.01 | 0.73 ± 0.01 | 0.74 ± 0.01 | 0.30 |
| Ct.Th, mm2 | 1.02 ± 0.01 | 1.02 ± 0.01 | 1.01 ± 0.01 | 0.69 |
| Imax, mm4 | 7.61 ± 0.09 | 7.55 ± 0.10 | 7.50 ± 0.10 | 0.72 |
| Imin, mm4 | 4.70 ± 0.10 | 4.78 ± 0.11 | 4.74 ± 0.11 | 0.86 |
| Imax/Imin | 1.63 ± 0.03 | 1.58 ± 0.03 | 1.60 ± 0.03 | 0.40 |
| K, mm4 | 13.8 ± 0.55 | 12.9 ± 0.56 | 13.2 ± 0.57 | 0.53 |
| R, mm | .219 ± 0.003 | .220 ± 0.003 | .223 ± 0.003 | 0.48 |
1
Data are means ± SEMs adjusted with final body weight as a covariate; n = 18–20 rats/group. Ct.Ar, cortical area; Ct.Ar/Tt.Ar, cortical volume fraction; Ct.Th, cortical thickness; Imax, maximum moment of inertia; Imin, minimum moment of inertia; Imax/Imin, ratio of maximum to minimum moment of inertia; K, polar moment of area; Ma.Ar, marrow area; MIX, a 50/50 mixture of MPI and SPI; MPI, milk protein isolate; R, robustness (Tt.Ar/length); SPI, soy protein isolate; Tt.Ar, total area.
2
P-values are a one-way ANCOVA with body weight as a covariate.