Page 254 - Handbook of Biomechatronics

Lower-Limb Prosthetics 249

displace- not are

100 vertical y NO-KF (t)

90
The and
80
(A)
70 shift. y NO-PO (t)
y NO-KF (t) 60 phase of

50 % Gait cycle a values

40 introduce
y TRUNK (t) Single support 30 peak-to-peak

y KF (t) 20 BCOM—they The

Double support 10

70 60 50 40 30 20 10 0 –10 –20 –30 0 vertical 1997a,b).
(B)
Vertical displacement (mm)
100 increase ment of the body center of mass, y TRUNK (t), the vertical displacement of the body center of mass due to pelvic obliquity, y PO (t), and the vertical displacement of the body center of mass without pelvic obliquity, y NO-PO (t). (B) The vertical displacement of the body ce
90
not and
80
do
70 y NO-KF (t)(Gard
y NO-PO (t) 60 obliquity

50 % Gait cycle pelvic flexion,
40 and
y TRUNK (t) Single support 30 flexion knee y TRUNK (t).

y PO (t) 20 knee stance-phase from

Double support 10 different

70 60 50 40 30 20 10 0 –10 –20 –30 0 Stance-phase without
(A)
Vertical displacement (mm)
3 mass significantly
Fig. of