Coxa preparation . | Distal joints fixed . | Peak force of impulse (mN) . | Peak leg displacement (mm) . | k (N m–1) . | γ . |
---|---|---|---|---|---|
Free | Just femur–tibia | 25 | 2.7±0.2 | 4.9±0.5 | 0.80±0.04 |
50 | 4.4±0.4 | 4.6±0.4 | 0.67±0.05 | ||
75 | 4.8±0.6 | 4.7±0.5 | 0.63±0.05 | ||
Femur–tibia and C-Tr-Fe | 25 | 2.6±0.4 | 8.6±0.9 | 0.95±0.10 | |
50 | 4.4±0.6 | 7.8±0.8 | 0.80±0.11 | ||
75 | 4.8±0.8 | 7.7±1.0 | 0.74±0.09 | ||
Fixed | Just femur–tibia | 25 | 1.2±0.2 | 74.7±15.0 | 0.43±0.06 |
50 | 2.3±0.4 | 109.1±26.9 | 0.39±0.06 | ||
75 | 3.2±0.5 | 80.0±18.1 | 0.48±0.06 | ||
Femur–tibia and C-Tr-Fe | 25 | 0.7±0.2 | 120.0±14.8 | 0.58±0.09 | |
50 | 1.3±0.3 | 156.0±23.0 | 0.49±0.14 | ||
75 | 1.9±0.4 | 135.8±20.2 | 0.52±0.14 |
Coxa preparation . | Distal joints fixed . | Peak force of impulse (mN) . | Peak leg displacement (mm) . | k (N m–1) . | γ . |
---|---|---|---|---|---|
Free | Just femur–tibia | 25 | 2.7±0.2 | 4.9±0.5 | 0.80±0.04 |
50 | 4.4±0.4 | 4.6±0.4 | 0.67±0.05 | ||
75 | 4.8±0.6 | 4.7±0.5 | 0.63±0.05 | ||
Femur–tibia and C-Tr-Fe | 25 | 2.6±0.4 | 8.6±0.9 | 0.95±0.10 | |
50 | 4.4±0.6 | 7.8±0.8 | 0.80±0.11 | ||
75 | 4.8±0.8 | 7.7±1.0 | 0.74±0.09 | ||
Fixed | Just femur–tibia | 25 | 1.2±0.2 | 74.7±15.0 | 0.43±0.06 |
50 | 2.3±0.4 | 109.1±26.9 | 0.39±0.06 | ||
75 | 3.2±0.5 | 80.0±18.1 | 0.48±0.06 | ||
Femur–tibia and C-Tr-Fe | 25 | 0.7±0.2 | 120.0±14.8 | 0.58±0.09 | |
50 | 1.3±0.3 | 156.0±23.0 | 0.49±0.14 | ||
75 | 1.9±0.4 | 135.8±20.2 | 0.52±0.14 |
C-Tr-Fe, coxa–trochanter–femur; k, stiffness; γ,structural damping factor
Values are means ± s.e.m.; N=5 for all cases