Adaptive Foot in Lower-Limb Prostheses

Table 2

Design requirements for a foot prosthesis development.

Requirement	Remarks
DOF	3DOF
Torque	Calculate by considering weight, type of mechanism, DOF, size, material (80–120 Nm)
Axis of rotation	Mediolateral axis, longitudinal axis, transverse axis
Type of mechanism	Coil spring, leaf spring, clutch, linkages, rolling joints, actuators, SEA, gears
Movable range	Refer to Table 1
Size	Approximately length 275 mm, width 100 mm, height 85 mm
Weight	Approximately 0.85–1.5 kg
Fabrication material	Carbon fiber or aluminum
Attachment method	Osseointegration, couplings, or pyramid adapters