Table 1.

Mechanical properties of the model components and mesh elements of the finite element models

Model component		Shear modulus (kPa)	Bulk modulus (kPa)	Elastic modulus (kPa)	Poisson's ratio	Number of mesh elements
Fat*		0·286	28·5	–	0·495	28 879
Muscle*		7·1	707·6	–	0·495	5144
Skin†		31·9	3179·37	–	0·495	8984
Bone*		–	–	7 × 106	0·3	2170
Foam cushion		–	–	15·3	0·3	9000
OL cushion	Top foam	–	–	15·3	0·3	18 308
	Bottom foam	–	–	287·7	0·4	17 ,220
ACB cushion‡	Cells	–	–	100	0·3	245 ,235
	Gaps	–	–	0·002	0·1	150 658

ACB, air‐cell‐based; OL, off‐loading.

^*Data were adopted from the literature 29.

^†Data were adopted from the literature 20.

^‡Data were adopted from the literature 9.