title: Analysis of a new polycentric above-knee prosthesis with a pneumatic swing phase control.
abstract: The four-bar linkage mechanism used by many designers for the knee joint of an above-knee prosthesis can provide knee rotation suitable for walking only. In Afro-Asian countries people are habituated to the squatting posture in their daily activities. A six-bar linkage knee-ankle mechanism above-knee prosthesis with a pneumatic swing phase control is developed and its analysis shows its suitability for producing a motion closely resembling that of a normal subject during walking and squatting.
authors.affiliation: Department of Applied Mechanics, Indian Institute of Technology, Madras.
authors.forename: K M
authors.initials: KM
authors.lastname: Patil
authors.forename: J K
authors.initials: JK
authors.lastname: Chakraborty
mesh_terms: D000843:Ankle Joint / Q000502:physiology; D001186:Artificial Limbs; D001696:Biomechanical Phenomena; D005684:Gait / Q000502:physiology; D006801:Humans; D007719:Knee Joint / Q000502:physiology; D007866:Leg; D011187:Posture; D011474:Prosthesis Design; D012399:Rotation