Searched for: department:"Biomechanical%5C%2BEngineering"
(1 - 18 of 18)
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Kwakkel, G. (author), Meskers, C.G.M. (author), Van Wegen, E.E. (author), Lankhorst, G.J. (author), Geurts, A.C.H. (author), Van Kuijk, A.A. (author), Lindeman, E. (author), Visser-Meily, A. (author), Vlugt, E. (author), Arendzen, J.H. (author)
Main claims of the literature are that functional recovery of the paretic upper limb is mainly defined within the first month post stroke and that rehabilitation services should preferably be applied intensively and in a task-oriented way within this particular time window. EXplaining PLastICITy after stroke (acronym EXPLICIT-stroke) aims to...
journal article 2008
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De Vlugt, E. (author), De Groot, J.H. (author), Schenkeveld, K.E. (author), Arendzen, J.H. (author), Van der Helm, F.C.T. (author), Meskers, C.G.M. (author)
Quantifying increased joint resistance into its contributing factors i.e. stiffness and viscosity ("hypertonia") and stretch reflexes ("hyperreflexia") is important in stroke rehabilitation. Existing clinical tests, such as the Ashworth Score, do not permit discrimination between underlying tissue and reflexive (neural) properties. We propose an...
journal article 2010
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Dunning, A.G. (author), Tolou, N. (author), Herder, J. (author)
For many applications in precision engineering, a six degrees of freedom (DoF) compliant stage (CS) with zero stiffness is desirable, to deal with problems like backlash, friction, lubrication, and at the same time, reduce the actuation force. To this end, the compliant stage (also known as compliant mechanism) can be statically balanced with a...
journal article 2011
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Simi, M. (author), Tolou, N. (author), Valdastri, P. (author), Herder, J.L. (author), Menciassi, A. (author), Dario, P. (author)
A novel compliant Magnetic Levitation System (MLS) for a wired miniature surgical camera robot was designed, modeled and fabricated. The robot is composed of two main parts, head and tail, linked by a compliant beam. The tail module embeds two magnets for anchoring and manual rough translation. The head module incorporates two motorized donut...
journal article 2012
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Lassooij, J. (author), Tolou, N. (author), Tortora, G. (author), Caccavaro, S. (author), Menciassi, A. (author), Herder, J.L. (author)
This article presents the design of a newly developed 2DoF robotic arm with a novel statically balanced and bi-stable compliant grasper as the end effector for laparoscopic surgery application. The arm is based on internal motors actuating 2 rotational DoFs: pitch and roll. The positive stiffness of the monolithic grasper has been compensated...
journal article 2012
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Mugge, W. (author), Van der Helm, F.C.T. (author), Schouten, A.C. (author)
Complex regional pain syndrome (CRPS) is characterized by pain and disturbed blood flow, temperature regulation and motor control. Approximately 25% of cases develop fixed dystonia. The origin of this movement disorder is poorly understood, although recent insights suggest involvement of disturbed force feedback. Assessment of sensorimotor...
journal article 2013
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Siebelt, M. (author), Groen, H.C. (author), Koelewijn, S.J. (author), De Blois, E. (author), Sandker, M. (author), Waarsing, J.H. (author), Müller, C. (author), Van Osch, G.J.V.M. (author), De Jong, M. (author), Weinans, H.H. (author)
Introduction Articular cartilage needs sulfated-glycosaminoglycans (sGAGs) to withstand high pressures while mechanically loaded. Chondrocyte sGAG synthesis is regulated by exposure to compressive forces. Moderate physical exercise is known to improve cartilage sGAG content and might protect against osteoarthritis (OA). This study investigated...
journal article 2014
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Fleerkotte, B.M. (author), Koopman, B. (author), Buurke, J.H. (author), Van Asseldonk, E.H.F. (author), Van der Kooij, H. (author), Rietman, J.S. (author)
Background There is increasing interest in the use of robotic gait-training devices in walking rehabilitation of incomplete spinal cord injured (iSCI) individuals. These devices provide promising opportunities to increase the intensity of training and reduce physical demands on therapists. Despite these potential benefits, robotic gait-training...
journal article 2014
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Lobo-Prat, J. (author), Keemink, A.Q.L. (author), Stienen, A.H.A. (author), Schouten, A.C. (author), Veltink, P.H. (author), Koopman, B.F.J.M. (author)
Background: The performance capabilities and limitations of control interfaces for the operation of active movement-assistive devices remain unclear. Selecting an optimal interface for an application requires a thorough understanding of the performance of multiple control interfaces. Methods: In this study the performance of EMG-, force- and...
journal article 2014
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Schorsch, J.F. (author), Keemink, A.Q.L. (author), Stienen, A.H.A. (author), Van der Helm, F.C.T. (author), Abbink, D.A. (author)
The design of exoskeletons is a popular and promising area of research both for restoring lost function and rehabilitation, and for augmentation in military and industrial applications. A major practical challenge to the comfort and usability for exoskeletons is the need to avoid misalignment of the exoskeletal joint with the underlying human...
journal article 2014
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Den Dunnen, S. (author), Tuijthof, G.J.M. (author)
Using water jets in orthopedic surgery to drill holes in bones can be beneficial due to the absence of thermal damage and the always sharp cut. To minimize operating time and the volume of water that is used, the efficiency (volume of removed bone per added volume of water) of the water jet should be maximized. The goal was to study the effect...
journal article 2014
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Bsat, S. (author), Yavari, S. (author), Munsch, M. (author), Valstar, E.R. (author), Zadpoor, A.A. (author)
Advanced additive manufacturing techniques such as electron beam melting (EBM), can produce highly porous structures that resemble the mechanical properties and structure of native bone. However, for orthopaedic applications, such as joint prostheses or bone substitution, the surface must also be bio-functionalized to promote bone growth. In the...
journal article 2015
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Ahmadi, S.M. (author), Yavari, S.A. (author), Wauthle, R. (author), Pouran, B. (author), Schrooten, J. (author), Weinans, H. (author), Zadpoor, A.A. (author)
It is known that the mechanical properties of bone-mimicking porous biomaterials are a function of the morphological properties of the porous structure, including the configuration and size of the repeating unit cell from which they are made. However, the literature on this topic is limited, primarily because of the challenge in fabricating...
journal article 2015
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Natenstedt, J. (author), Kok, A.C. (author), Dankelman, J. (author), Tuijthof, G.J.M. (author)
Articular cartilage has limited regeneration capacities. One of the factors that appear to affect the in vitro cultivation of articular cartilage is mechanical stimulation. So far, no combination of parameters has been identified that offers the best results. The goal is to review the literature in search of the best available set of...
journal article 2015
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Zadpoor, A.A. (author)
Investigation of the mechanical behavior of biological tissues and biomaterials has been an active area of research for several decades. However, in recent years, the enthusiasm in understanding the mechanical behavior of biological tissues and biomaterials has increased significantly due to the development of novel biomaterials for new fields...
journal article 2015
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Arkenbout, E.A. (author), De Winter, J.C.F. (author), Breedveld, P. (author)
Vision based interfaces for human computer interaction have gained increasing attention over the past decade. This study presents a data fusion approach of the Nimble VR vision based system, using the Kinect camera, with the contact based 5DT Data Glove. Data fusion was achieved through a Kalman filter. The Nimble VR and filter output were...
journal article 2015
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Sarkalkan, N. (author), Loeve, A.J. (author), Van Dongen, K.W.A. (author), Tuijthof, G.J.M. (author), Zadpoor, A.A. (author)
(Osteo)chondral defects (OCDs) in the ankle are currently diagnosed with modalities that are not convenient to use in long-term follow-ups. Ultrasound (US) imaging, which is a cost-effective and non-invasive alternative, has limited ability to discriminate OCDs. We aim to develop a new diagnostic technique based on US wave propagation through...
journal article 2015
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Pasma, J.H. (author), Engelhart, D. (author), Maier, A.B. (author), Aarts, R.G.K.M. (author), Van Gerven, J.M.A. (author), Arendzen, J.H. (author), Schouten, A.C. (author), Meskers, C.G.M. (author), Van der Kooij, H. (author)
Objectives System identification techniques have the potential to assess the contribution of the underlying systems involved in standing balance by applying well-known disturbances. We investigated the reliability of standing balance parameters obtained with multivariate closed loop system identification techniques. Methods In twelve healthy...
journal article 2016
Searched for: department:"Biomechanical%5C%2BEngineering"
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