Development and Performance Verification of a Motorized Prosthetic Leg for Stair Walking

Table 6

Comparison between the desired and prosthetic leg specifications.

	Requirement	Prosthetic leg
		Specifications
Knee range of motion	0° to 100°	0° to 100°
Ankle range of motion	−25° to 15°	−25° to 15°
Maximum knee torque	106.6 nm	106.57 nm
Maximum ankle torque	127.1 nm	127.1 nm
Peak knee power	250 W	250 W
Height (below-knee)	438 mm	444.5 mm
Maximum total weight	4.912 kg	4.779 kg
Max. stress	Foot: 65.51/75 MPa
Allowable stress	Lower limb: 80.71/95 MPa