High sensitivity of the knee joint response in stair ascent to changes in knee kinematics, kinetics and joint center positioning.
Compared to level walking, stair ascent imposes larger mechanical demands on the knee joint involving elevated muscle, ligament, and contact forces. This study investigates knee biomechanics in stair ascent using a lower-extremity coupled musculoskeletal finite element (MS-FE) model. Focus is on the sensitivity of biom...