Rolf Bernhardt

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This paper presents a new haptic locomotion interface, which comprises two programmable foot platforms with permanent foot machine contact. It is designed as a scalable and modular system with unit-by-unit extensibility offering up to six plus one degrees of freedom (DOF) per foot. The basic setup comprises three DOF per foot in the sagittal plane.The(More)
Gait restoration is an integral part of rehabilitation of brain lesioned patients. Modern concepts favour a task-specific repetitive approach, i.e. who wants to regain walking has to walk, while tone-inhibiting and gait preparatory manoeuvres had dominated therapy before. Following the first mobilization out of the bed, the wheelchair-bound patient should(More)
The work presents a newly developed safety concept for application of robotic walking simulators based on the principle of programmable footplates in gait rehabilitation. Unlike robotic hand devices or exoskeleton robots for gait training on treadmills, which can be built relatively lightweight and require only small drives which can hardly do harm to the(More)
This paper presents a novel robotic prototype for advanced gait rehabilitation. This system integrates sophisticated robotic technology with control algorithms. The robot opens up new possibilities for the field of rehabilitation for restoring posture balancing and gait motoric functions. The paper provides an overview of the system's fundamental(More)
Restoration of gait is a major concern of rehabilitation after stroke or spinal cord injury. Modern concepts of motor learning favour a task-specific repetitive approach, i.e. "whoever wants to learn to walk again must walk." However, the physical demands this places on the therapist, is a limiting factor in the clinical routine setting. This article(More)
The control system for a robotic walking simulator and rehabilitation device requires enhanced operation modes and control capabilities, compared to conventional industrial robot controllers. In order to be able to implement custom made algorithms at all levels of the controller and to have an extensible and reusable control environment, we decided to(More)
Rolf Bernhardt, Dragoljub Surdilovic, Volker Katschinski and Gerhard Schreck are with the Fraunhofer Institute for Production Systems and Design Technology (IPK), Pascalstraße 8-9, D10587 Berlin, Germany (e-mail: {rolf.bernhardt | dragoljub.surdilovic | volker.katschinski}@ ipk.fraunhofer.de). Klaus Schröer is with Volkswagen AG, PP-F2,(More)