Searched for: author%3A%22Marchal+Crespo%2C+L.%22
(1 - 20 of 22)

Pages

document
de Miguel-Fernández, Jesús (author), Lobo-Prat, Joan (author), Prinsen, Erik (author), Font-Llagunes, Josep M. (author), Marchal Crespo, L. (author)
Background: In the past decade, there has been substantial progress in the development of robotic controllers that specify how lower-limb exoskeletons should interact with brain-injured patients. However, it is still an open question which exoskeleton control strategies can more effectively stimulate motor function recovery. In this review,...
review 2023
document
Ratz, Raphael (author), Marchal Crespo, L. (author)
Whole-hand haptic rendering could lead to more naturalistic and intuitive virtual hand-object interactions, which could be especially beneficial for applications such as sensorimotor robotic neurorehabilitation. However, the majority of previously proposed whole-hand haptic rendering algorithms rely on effortful custom implementations or are...
conference paper 2023
document
Ratschat, A.L. (author), Lomba, T.M.C. (author), Dalla Gasperina, S. (author), Marchal Crespo, L. (author)
Rehabilitation robotics combined with virtual reality using head-mounted displays enable naturalistic, immersive, and motivating therapy for people after stroke. There is growing interest in employing digital twins in robotic neurore-habilitation, e.g., in telerehabilitation for virtual coaching and monitoring, as well as in immersive virtual...
conference paper 2023
document
Dalla Gasperina, S. (author), Ratschat, A.L. (author), Marchal Crespo, L. (author)
High transparency is a fundamental requirement for upper-limb exoskeletons to promote active patient participation. Although various control strategies have been suggested to improve the transparency of these robots, there are still some limitations, such as the need for precise dynamic models and potential safety issues when external forces are...
conference paper 2023
document
van den Berg, A. (author), de Vries, B. (author), Breedveld, Z.A. (author), van Mierlo, A.M.A. (author), Tijhuis, M.J. (author), Marchal Crespo, L. (author)
Immersive Virtual Reality (IVR) has gained popularity in neurorehabilitation for its potential to increase patients’ motivation and engagement. A crucial yet relatively unexplored aspect of IVR interfaces is the patients’ representation in the virtual world, such as with an avatar. A higher level of embodiment over avatars has been shown to...
journal article 2023
document
Buetler, Karin A. (author), Penalver-Andres, Joaquin (author), Özen, Özhan (author), Ferriroli, Luca (author), Müri, René M. (author), Cazzoli, Dario (author), Marchal Crespo, L. (author)
To offer engaging neurorehabilitation training to neurologic patients, motor tasks are often visualized in virtual reality (VR). Recently introduced head-mounted displays (HMDs) allow to realistically mimic the body of the user from a first-person perspective (i.e., avatar) in a highly immersive VR environment. In this immersive environment,...
journal article 2022
document
Wenk, Nicolas (author), Jordi, Mirjam V. (author), Buetler, Karin A. (author), Marchal Crespo, L. (author)
Combining immersive virtual reality (VR) using head-mounted displays (HMDs) with assisting robotic devices might be a promising procedure to enhance neurorehabilitation. However, it is still an open question how immersive virtual environments (VE) should be designed when interacting with rehabilitation robots. In conventional training, the...
journal article 2022
document
Özen, Özhan (author), Buetler, Karin A. (author), Marchal Crespo, L. (author)
BACKGROUND: Current robot-aided training allows for high-intensity training but might hamper the transfer of learned skills to real daily tasks. Many of these tasks, e.g., carrying a cup of coffee, require manipulating objects with complex dynamics. Thus, the absence of somatosensory information regarding the interaction with virtual objects...
journal article 2022
document
Rätz, R. (author), Müri, René M. (author), Marchal Crespo, L. (author)
To address the clinical need for high-intensity, repetitive sensorimotor hand training after stroke, we developed in a first step a novel haptic device for practicing finger movements. Because the thumb plays a fundamental role in the loss of autonomy and prehensile functions after stroke, we present here the development of a thumb module that...
conference paper 2022
document
Van Damme, Nathan (author), Ratz, Raphael (author), Marchal Crespo, L. (author)
Sensorimotor impairments of the hand after stroke can drastically reduce the ability to perform activities of daily living. Recently, there has been an increased interest in minimally supervised and unsupervised rehabilitation to increase therapy dosage and to complement conventional therapy. Several devices have been developed that are...
conference paper 2022
document
Wenk, Nicolas (author), Buetler, Karin A. (author), Penalver-Andres, Joaquin (author), Müri, René M. (author), Marchal Crespo, L. (author)
Background: The relearning of movements after brain injury can be optimized by providing intensive, meaningful, and motivating training using virtual reality (VR). However, most current solutions use two-dimensional (2D) screens, where patients interact via symbolic representations of their limbs (e.g., a cursor). These 2D screens lack depth...
journal article 2022
document
Penalver-Andres, Joaquin A. (author), Buetler, Karin A. (author), Koenig, Thomas (author), Müri, René M. (author), Marchal Crespo, L. (author)
Developing motor and cognitive skills is needed to achieve expert (motor) performance or functional recovery from a neurological condition, e.g., after stroke. While extensive practice plays an essential role in the acquisition of good motor performance, it is still unknown whether certain person-specific traits may predetermine the rate of...
journal article 2022
document
Kapteijn, S. (author), Kim, Wansoo (author), Marchal Crespo, L. (author), Peternel, L. (author)
Walking is an essential part of almost all activities of daily living. We use different gait patterns in different situations, e.g., moving around the house, performing various sports, or when compensating for an injury. However, how humans perform this gait tailoring remains a partially unknown process. To this end, the influence of various...
conference paper 2022
document
Rätz, Raphael (author), Müri, René M. (author), Marchal Crespo, L. (author)
In order to identify the clinical requirements for a novel upper-limb robotic device for sensorimotor neurorehabilitation, a survey with 33 participants (including physiotherapists, occupational therapists, speech therapists, nurses and physicians) was conducted. The results show that grasping, eating and personal hygiene are amongst the most...
book chapter 2022
document
Penalver-Andres, Joaquin (author), Buetler, Karin A. (author), König, Thomas (author), Müri, René M. (author), Marchal Crespo, L. (author)
Motor learning is a complex cognitive and motor process underlying neurorehabilitation. Cognitive (e.g., attentional) engagement is important for motor learning, especially early in the learning process. In this study, we investigated if task instructions enforcing the underlying task rule of a virtual sailing task modulate attentional...
book chapter 2022
document
Penalver-Andres, Joaquin (author), Buetler, Karin A. (author), Koenig, Thomas (author), Müri, René Martin (author), Marchal Crespo, L. (author)
Learning a new motor task is a complex cognitive and motor process. Especially early during motor learning, cognitive functions such as attentional engagement, are essential, e.g., to discover relevant visual stimuli. Drawing participant’s attention towards task-relevant stimuli—e.g., with task instructions using visual cues or explicit...
journal article 2021
document
Basalp, Ekin (author), Wolf, Peter (author), Marchal Crespo, L. (author)
The use of robots has attracted researchers to design numerous haptic training methods to support motor learning. However, investigations of new methods yielded inconclusive results regarding their effectiveness to enhance learning due to the diversity of tasks, haptic designs, participants skill level, and study protocols. In this review, we...
review 2021
document
Wenk, N. (author), Penalver-Andres, J. (author), Buetler, K. A. (author), Nef, T. (author), Müri, R. M. (author), Marchal Crespo, L. (author)
Virtual reality (VR) is a promising tool to promote motor (re)learning in healthy users and brain-injured patients. However, in current VR-based motor training, movements of the users performed in a three-dimensional space are usually visualized on computer screens, televisions, or projection systems, which lack depth cues (2D screen), and...
journal article 2021
document
Ratz, Raphael (author), Conti, François (author), Müri, René M. (author), Marchal Crespo, L. (author)
Neurorehabilitation research suggests that not only high training intensity, but also somatosensory information plays a fundamental role in the recovery of stroke patients. Yet, there is currently a lack of easy-to-use robotic solutions for sensorimotor hand rehabilitation. We addressed this shortcoming by developing a novel clinical-driven...
journal article 2021
document
Özen, Özhan (author), Buetler, Karin A. (author), Marchal Crespo, L. (author)
Despite recent advances in robot-assisted training, the benefits of haptic guidance on motor (re)learning are still limited. While haptic guidance may increase task performance during training, it may also decrease participants' effort and interfere with the perception of the environment dynamics, hindering somatosensory information crucial...
journal article 2021
Searched for: author%3A%22Marchal+Crespo%2C+L.%22
(1 - 20 of 22)

Pages