Table 3.

First-order sensitivity indices (S_x) of F* (body–floor impact model), F (ground–skeleton force-transfer model) and ARF0 (multiscale model) to various model input. Key: m, body mass; θ_f, final angle of fall; η_P, postural attenuation coefficient; H, body height; η_I, impact attenuation coefficient; 〈S〉, bone strength averaged over all impact orientations

	m	θ f	η P
F*
S x (%)	66.0	14.6	10.6

	m	H	η I
F
S x (%)	17.1	2.39	75.7

F*	m	H	〈S〉
ARF0
S x (%)	1.06	0.220	84.1

All sensitivity indices are based on sample sizes of 10⁵