Glenn K. Klute

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The C-Leg (Otto Bock, Duderstadt, Germany) is a microprocessor-controlled prosthetic knee that may enhance amputee gait. This intrasubject randomized study compared the gait biomechanics of transfemoral amputees wearing the C-Leg with those wearing a common noncomputerized prosthesis, the Mauch SNS (Ossur, Reykjavik, Iceland). After subjects had a 3-month(More)
Much is known about human walking, but it is not known how walking is used during typical activities. Since improving walking ability is a key goal in many surgical, pharmacological, and physiotherapeutic interventions, understanding typical community mobility demands regarding the length of walking bouts, the number of sequential steps frequently(More)
Biorobotic research seeks to develop new robotic technologies modeled after the performance of human and animal neuromuscular systems. The development of one component of a biorobotic system, an artificial muscle and tendon, is reported here. The device is based on known static and dynamic properties of biological muscle and tendon that were extracted from(More)
OBJECTIVE To investigate the effect of a vacuum-assisted socket suspension system as compared with pin suspension on lower extremity amputees. DESIGN Randomized crossover with 3-week acclimation. SETTING Household, community, and laboratory environments. PARTICIPANTS Unilateral, transtibial amputees (N=20 enrolled, N=5 completed). INTERVENTIONS (1)(More)
Nearly every daily activity that requires locomotion requires turning, yet most gait research has focused on straight ahead walking. Research on turning has primarily been limited to laboratory or clinical settings, and little is known about turning in the home or community environments. The purpose of this study was to investigate turning behavior in the(More)
The movement of the center of mass (COM) during human walking has been hypothesized to follow a sinusoidal pattern in the vertical and mediolateral directions. The vertical COM displacement has been shown to increase with velocity, but little is known about the mediolateral movement of the COM. In our evaluation of the mediolateral COM displacement at(More)
Microprocessor-controlled prosthetic knees are claimed to improve gait efficiency in transfemoral (TF) amputees. This hypothesis was tested in a prospective randomized crossover trial that compared the Mauch SNS knee and the C-Leg microprocessor-controlled knee in eight TF amputees. The subjects were given a 3-month acclimation period in each knee. Then,(More)
The McKibben artificial muscle is a pneumatic actuator whose properties include a very high force to weight ratio. This characteristic makes it very attractive for a wide range of applications such as mobile robots and prosthetic appliances for the disabled. In this paper we present a model that includes a non-linear, Mooney-Rivlin mathematical description(More)
OBJECTIVE To investigate the effect of prosthetic interventions on the functional mobility of lower-extremity amputees. DESIGN Crossover with repeated measures. SETTING Household and community environment. PARTICIPANTS Twelve transtibial and 5 transfemoral amputees. INTERVENTIONS For transtibial amputees, shock-absorbing versus rigid pylons. For(More)
OBJECTIVE To compare objective cognitive performance and perception of cognitive burden during walking tasks using 2 different prosthetic knees: a computerized hydraulic knee (Otto Bock C-leg) and a noncomputerized hydraulic knee (Ossur Mauch SNS). DESIGN Two-group crossover trial, with participants randomly assigned to order of prosthesis. Participants(More)