Effects of Actuated Pelvis Control on Shear and Pressure Distribution

Geffen, P. van; Koopman, Bart; Reenalda, Jasper; Veltink, Petrus H.

doi:10.1016/s0021-9290(07)70387-1

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Nevertheless, as shown in related research [ 24 , 25 , 26 ], an important role in normal gait is played by the human pelvis, which performs three translational and three rotational motions while walking. To keep the systems simple, but, at the same time, to provide an increased degree of comfort for the user, many systems implement passive DoFs at the pelvis level.…”

Section: Introductionmentioning

confidence: 99%

Multi-Axis Force Sensor for Human–Robot Interaction Sensing in a Rehabilitation Robotic Device

Grosu

Vanderborght

et al. 2017

Sensors

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Human–robot interaction sensing is a compulsory feature in modern robotic systems where direct contact or close collaboration is desired. Rehabilitation and assistive robotics are fields where interaction forces are required for both safety and increased control performance of the device with a more comfortable experience for the user. In order to provide an efficient interaction feedback between the user and rehabilitation device, high performance sensing units are demanded. This work introduces a novel design of a multi-axis force sensor dedicated for measuring pelvis interaction forces in a rehabilitation exoskeleton device. The sensor is conceived such that it has different sensitivity characteristics for the three axes of interest having also movable parts in order to allow free rotations and limit crosstalk errors. Integrated sensor electronics make it easy to acquire and process data for a real-time distributed system architecture. Two of the developed sensors are integrated and tested in a complex gait rehabilitation device for safe and compliant control.

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Section: Introductionmentioning

confidence: 99%

Multi-Axis Force Sensor for Human–Robot Interaction Sensing in a Rehabilitation Robotic Device

Grosu

Vanderborght

et al. 2017

Sensors

View full text Add to dashboard Cite

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Effects of dynamic sitting interventions on tissue oxygenation in individuals with spinal cord disorders

et al. 2009

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Study Design: An explorative cross-sectional study. Objectives: The objective of this study was to investigate the possibility of imposing dynamic sitting behavior on individuals with spinal cord disorders by using the Dynasit chair and to investigate its effect on the (sub-)cutaneous tissue oxygenation. Setting: Rehabilitation Centre het Roessingh, Enschede, the Netherlands. Subjects: Ten male subjects with a spinal cord disorder. Methods: The Dynasit chair, an experimental simulator chair, containing mechanical concepts for postural adjustments, regulation of tuberal load and pelvic rotation, was developed to allow individuals with a spinal cord disorder to sit in a dynamic way. An experiment was carried out in which a dynamic sitting pattern was imposed. The sitting pattern consisted of series of actuated changes in posture, tuberal load and pelvic orientation. Effects of these changes on (sub-)cutaneous buttock tissue oxygenation were investigated by transcutaneous measurement of tissue oxygenation. Results: Nonparametric statistical analyses were carried out on nine subjects that completed the study. Results showed significant positive effects (Po0.05) of actuated changes in tuberal load on the cutaneous and subcutaneous tissue oxygenation. Conclusion: The Dynasit chair is effective in imposing dynamic sitting behavior in individuals with a spinal cord disorder and consequently might reduce the chance of tissue degradation.

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Effects of Actuated Pelvis Control on Shear and Pressure Distribution

Cited by 2 publications

References 5 publications

Multi-Axis Force Sensor for Human–Robot Interaction Sensing in a Rehabilitation Robotic Device

Multi-Axis Force Sensor for Human–Robot Interaction Sensing in a Rehabilitation Robotic Device

Effects of dynamic sitting interventions on tissue oxygenation in individuals with spinal cord disorders

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