Searched for: author%3A%22Schouten%252C%255C+A.C.%22
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Cop, Christopher P. (author), Jakubowski, Kristen L. (author), Schouten, A.C. (author), Koopman, Bart (author), Perreault, Eric J. (author), Sartori, Massimo (author)
Objective: Accurate estimation of stiffness across anatomical levels (i.e., joint, muscle, and tendon) in vivo has long been a challenge in biomechanics. Recent advances in electromyography (EMG)-driven musculoskeletal modeling have allowed the non-invasive estimation of stiffness during dynamic joint rotations. Nevertheless, validation has...
journal article 2024
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Dekker, Bo (author), Schouten, A.C. (author), Scharenborg, O.E. (author)
Silent speech interfaces could enable people who lost the ability to use their voice or gestures to communicate with the external world, e.g., through decoding the person’s brain signals when imagining speech. Only a few and small databases exist that allow for the development and training of brain computer interfaces (BCIs) that can decode...
conference paper 2023
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van’t Veld, Ronald C. (author), Flux, Eline (author), van Oorschot, Wieneke (author), Schouten, A.C. (author), van der Krogt, Marjolein M. (author), van der Kooij, H. (author), Vos-van der Hulst, Marije (author), Keijsers, Noël L.W. (author), van Asseldonk, Edwin H.F. (author)
Background: Spasticity, i.e. stretch hyperreflexia, increases joint resistance similar to symptoms like hypertonia and contractures. Botulinum neurotoxin-A (BoNT-A) injections are a widely used intervention to reduce spasticity. BoNT-A effects on spasticity are poorly understood, because clinical measures, e.g. modified Ashworth scale (MAS),...
journal article 2023
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Roelofs, Jolanda M.B. (author), Zandvliet, Sarah B. (author), Schut, I.M. (author), Huisinga, Anouk C.M. (author), Schouten, A.C. (author), Hendricks, Henk T. (author), de Kam, Digna (author), Aerden, Leo A.M. (author), Bussmann, J.B.J. (author), Geurts, Alexander C.H. (author), Weerdesteyn, Vivian (author)
Background: After mild stroke persistent balance limitations may occur, creating a risk factor for fear of falling, falls, and reduced activity levels. Objective. To investigate whether individuals in the chronic phase after mild stroke show balance and gait limitations, elevated fall risk, reduced balance confidence, and physical activity...
journal article 2023
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Geelen, J.E. (author), van der Helm, F.C.T. (author), Schouten, A.C. (author), Mugge, W. (author)
Human hands are complex biomechanical systems that allow for dexterous tasks with many degrees of freedom. Coordination of the fingers is essential for many activities of daily living and involves integrating sensory signals. During this sensory integration, the central nervous system deals with the uncertainty of sensory signals. When...
journal article 2023
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van den Berg, Boudewijn (author), Manoochehri, M. (author), Schouten, A.C. (author), van der Helm, F.C.T. (author), Buitenweg, Jan R. (author)
Recent studies have established the presence of nociceptive steady-state evoked potentials (SSEPs), generated in response to thermal or intra-epidermal electric stimuli. This study explores cortical sources and generation mechanisms of nociceptive SSEPs in response to intra-epidermal electric stimuli. Our method was to stimulate healthy...
journal article 2022
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Sharifi, S. (author), Luft, F. (author), de Boer, L. (author), Buijink, A. W.G. (author), Mugge, W. (author), Schouten, A.C. (author), Heida, T. (author), Bour, L. J. (author), van Rootselaar, A. F. (author)
Tremor is thought to be an effect of oscillatory activity within the sensorimotor network. To date, the underlying pathological brain networks are not fully understood. Disentangling tremor activity from voluntary motor output and sensorimotor feedback systems is challenging. To better understand the intrinsic sensorimotor fingerprint...
journal article 2022
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van der Cruijsen, J. (author), Dooren, R.F. (author), Schouten, A.C. (author), Oostendorp, Thom F. (author), Frens, Maarten A. (author), Ribbers, G.M. (author), van der Helm, F.C.T. (author), Kwakkel, Gert (author), Selles, R.W. (author)
Transcranial direct current stimulation (tDCS) is a promising tool to improve and speed up motor rehabilitation after stroke, but inconsistent clinical effects refrain tDCS from clinical implementation. Therefore, this study aimed to assess the need for individualized tDCS configurations in stroke, considering interindividual variability in...
journal article 2022
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Cop, Christopher P. (author), Schouten, A.C. (author), Koopman, Bart (author), Sartori, Massimo (author)
The simultaneous modulation of joint torque and stiffness enables humans to perform large repertoires of movements, while versatilely adapting to external mechanical demands. Multi-muscle force control is key for joint torque and stiffness modulation. However, the inability to directly measure muscle force in the intact moving human prevents...
journal article 2022
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van der Kooij, H. (author), Fricke, Simone S. (author), Van 't Veld, Ronald C. (author), Prieto, Ander Vallinas (author), Keemink, Arvid Q.L. (author), Schouten, A.C. (author), Van Asseldonk, Edwin H.F. (author)
Knowledge on joint impedance during walking in various conditions is relevant for clinical decision-making and the development of robotic gait trainers, leg prostheses, leg orthotics and wearable exoskeletons. Whereas ankle impedance during walking has been experimentally assessed, knee and hip joint impedance during walking have not been...
journal article 2022
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van ’t Veld, Ronald C. (author), Fricke, S. S. (author), Prieto, Ander Vallinas (author), Keemink, Arvid Q.L. (author), Schouten, A.C. (author), van der Kooij, H. (author), van Asseldonk, E. H.F. (author)
Joint impedance plays an important role in postural control and movement. However, current experimental knowledge on lower limb impedance during gait is limited to the ankle joint. We designed the LOwer limb PERturbator (LOPER) aimed to assess knee and hip joint impedance during gait. The LOPER applies force perturbations with a 39 Hz...
book chapter 2022
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Cop, Christopher P. (author), Schouten, A.C. (author), Koopman, Bart F.J.M. (author), Sartori, M. (author)
Quantifying human joint stiffness in vivo during movement remains challenging. Well established stiffness estimation methods include system identification and the notion of quasi-stiffness, with experimental and conceptual limitations, respectively. Joint stiffness computation via biomechanical models is an emerging solution to overcome such...
book chapter 2022
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Cavallo, Gaia (author), Cop, Christopher P. (author), Sartori, M. (author), Schouten, A.C. (author), Lataire, John (author)
Joint impedance is a common way of representing human joint dynamics. Since ankle joint impedance varies within the gait cycle, time-varying system identification techniques can be used to estimate it. Commonly, time-varying system identification techniques assume repeatably of joint impedance over cyclic motions, without taking into...
book chapter 2022
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van de Ruit, M.L. (author), Mugge, W. (author), Schouten, A.C. (author)
Careful control of joint impedance, or dynamic joint stiffness, is crucial for successful performance of movement. Time-varying system identification (TV-SysID) enables quantification of joint impedance during movement. Several TV-SysID methods exist, but have never been systematically compared. Here, we simulate time-varying joint behavior...
book chapter 2022
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Cop, Christopher P. (author), Cavallo, Gaia (author), van'T Veld, Ronald C. (author), Koopman, Bart F.J.M. (author), Lataire, John (author), Schouten, A.C. (author), Sartori, Massimo (author)
In vivo joint stiffness estimation during time-varying conditions remains an open challenge. Multiple communities, e.g. system identification and biomechanics, have tackled the problem from different perspectives and using different methods, each of which entailing advantages and limitations, often complementary. System identification...
review 2021
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van 't Veld, Ronald (author), Flux, Eline (author), Schouten, A.C. (author), van der Krogt, Marjolein (author), van der Kooij, H. (author), Van Asseldonk, Edwin H.F. (author)
People with spasticity, i.e., stretch hyperreflexia, have a limited functional independence and mobility. While a broad range of spasticity treatments is available, many treatments are invasive, non-specific, or temporary and might have negative side effects. Operant conditioning of the stretch reflex is a promising non-invasive paradigm with...
journal article 2021
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Waasdorp, R. (author), Mugge, W. (author), Vos, H.J. (author), De Groot, Jurriaan H. (author), Verweij, M.D. (author), de Jong, N. (author), Schouten, A.C. (author), Daeichin, V. (author)
Skeletal muscles generate force, enabling movement through a series of fast electro-mechanical activations coordinated by the central nervous system. Understanding the underlying mechanism of such fast muscle dynamics is essential in neuromuscular diagnostics, rehabilitation medicine and sports biomechanics. The unique combination of...
journal article 2021
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Muurling, Marijn (author), Lötters, Freek J.B. (author), Geelen, J.E. (author), Schouten, A.C. (author), Mugge, W. (author)
Introduction: Sensorimotor control can be disturbed because of pain and trauma. There is scarce comprehension about which component of the sensorimotor system would benefit the most from treatment in distal radius fracture (DRF). Purpose of the Study: The purpose of this study was to determine whether the sensorimotor control of subjects with...
journal article 2021
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Geelen, J.E. (author), Branco, Mariana P. (author), Ramsey, Nick F. (author), van der Helm, F.C.T. (author), Mugge, W. (author), Schouten, A.C. (author)
Motion capture systems are extensively used to track human movement to study healthy and pathological movements, allowing for objective diagnosis and effective therapy of conditions that affect our motor system. Current motion capture systems typically require marker placements which is cumbersome and can lead to contrived movements.Here, we...
conference paper 2021
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van der Cruijsen, J. (author), Manoochehri, M. (author), Jonker, Z.D. (author), Andrinopoulou, Eleni Rosalina (author), Frens, Maarten A. (author), Ribbers, G.M. (author), Schouten, A.C. (author), Selles, R.W. (author)
Neurophysiologic correlates of motor learning that can be monitored during neurorehabilitation interventions can facilitate the development of more effective learning methods. Previous studies have focused on the role of the beta band (14–30 Hz) because of its clear response during motor activity. However, it is difficult to discriminate...
journal article 2021
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