Thirty-two week female PAI-1.stab (shaded) femora demonstrated greater diaphyseal ultimate torsional strength, Tmax (A), greater cortical bone tensile strength, Su (B), a trend towards greater torsional stiffness, Ks (C), and greater shear modulus of elasticity, G (D) compared to age-matched WT females (open). *Indicates significant difference relative to age- and gender-matched WT, p<0.05. (n=7–9)