Technology Efficacy in Active Prosthetic Knees for Transfemoral Amputees: A Quantitative Evaluation

Table 1

Gait biomechanics parameters identified as performance indicator.

Major parameters	Subparameters	Calculated normal values
Knee angle	Maximum stance angle (𝜃max.stance)	20° [6, 32, 33]
	Minimum stance angle (𝜃min.stance)	2° [6, 32, 33]
	Maximum swing angle (𝜃max.swing)	64.5° [6, 32, 33]
	Minimum swing angle (𝜃min.swing)	0.5° [6, 32, 33]
Knee torque	Maximum stance flexion torque (𝑇max.stanceflex.)	4 N·m [6, 32]
	Minimum stance extension torque (𝑇min.stanceext.)	20 N·m [6, 32]
	Area under the swing phase torque curve (𝑇Area)	117 N·m [6, 32]
Knee power	Maximum propulsion power (𝑃max.propulsion)	73.08 W [6, 33]
	Maximum swing power (𝑃max.swing)	97.4 W [6, 33]