Biomedical Engineering Reference
In-Depth Information
Fig. 5.24 Comparison of experimental data and simulation results: a fat, b muscle, and c fat-
muscle compound of a 36 year old male subject
Table 5.3 in vivo long-term Ogden material parameters of gluteal fat and (passive) muscle
tissue of a 35 year old male subject acronym M1 with muscle loading direction transversal to
muscle fibre orientation
j
D
j
(M
-1
Pa
-1
)
l
j
(MPa)
a
j
(-)
Gluteal skin/fat
1
1.1826E-03
-0.10764
16.912
2
6.4386E-08
-31.8953
4.76897
Gluteal (passive) muscle
1
1.02571E-03
1.316402
19.4987
2
1.45209E-07
-18.35932
166.315
Table 5.4 in vivo long-term Ogden material parameters of gluteal fat and (passive) muscle
tissue of a 42 year old female subject acronym F1 with muscle loading direction transversal to
muscle fibre orientation
j
D
j
(M
-1
Pa
-1
)
l
j
(MPa)
a
j
(-)
Gluteal skin/fat
1
2.06387E-04
-1.54834E-01
9.72293E+01
2
3.17440E-11
4.98767E+01
2.48330E+00
Gluteal (passive) muscle
1
1.26648E-03
1.74548E+00
1.58422E+01
2
1.86788E-07
-2.02743E-01
1.91509E+02
deformation increment (a) the prescribed nodes of the skin/fat and the muscle
model met the deformed fat-muscle-boundary surface reconstructed from the
MR-images [interface nodes were displacement driven onto the reconstructed
interface surfaces (cf. Fig.
5.23
)], and (b) simultaneously, the indenter force along
the indentation axis in the skin/fat model as well as the reaction force along the
indentation axis in the muscle model, both, obtained from property separation,
Fig.
5.18
a, met the measured force values obtained from the indentation experi-
ment. For the gluteal tissue-compound an order of parameter N = 2 of the series
