Title :
Variation of human knee stiffness with angular perturbation intensity
Author :
Tai, Changfeng ; Robinson, Charles J.
Author_Institution :
Dept. of Rehabilitation Sci. & Technol., Pittsburgh Univ., PA, USA
Abstract :
The dynamic stiffness transfer function relating knee angular position to knee torque was well described by a linear, second-order transfer function having inertial, viscous and elastic terms. Estimates of the inertial and viscous parameters were independent of the perturbation intensity, but the elastic parameter decreased with increase in perturbation intensity
Keywords :
biocontrol; biomechanics; elasticity; physiological models; torque; transfer functions; angular perturbation intensity; dynamic stiffness transfer function; elastic term; human knee stiffness; inertial term; knee angular position; knee torque; linear second-order transfer function; viscous term; Fourier transforms; Frequency; Humans; Joints; Knee; Least squares approximation; Leg; Neuromuscular; Torque; Transfer functions;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579705
