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Cudell Santos Carvalho, Guiomar (author)Manual wheelchair users, especially those with spinal cord injuries, often suffer from shoulder overuse and pain. Understanding the specific role of the muscles involved in wheelchair propulsion is essential to prevent these complications. Yet, there is uncertainty about which muscles are primarily recruited, and their contribution to propulsion...master thesis 2024
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van der Slikke, R.M.A. (author), de Leeuw, Arie-Willem (author), de Rooij, Aleid (author), Berger, M.A.M. (author)Within rehabilitation, there is a great need for a simple method to monitor wheelchair use, especially whether it is active or passive. For this purpose, an existing measurement technique was extended with a method for detecting self- or attendant-pushed wheelchair propulsion. The aim of this study was to validate this new detection method by...journal article 2024
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van Dijk, M.P. (author), Hoozemans, Marco J.M. (author), Berger, M.A.M. (author), Veeger, H.E.J. (author)In wheelchair sports, there is an increasing need to monitor mechanical power in the field. When rolling resistance is known, inertial measurement units (IMUs) can be used to determine mechanical power. However, upper body (i.e., trunk) motion affects the mass distribution between the small front and large rear wheels, thus affecting rolling...journal article 2024
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van Dijk, M.P. (author), Hoozemans, Marco J.M. (author), Berger, M.A.M. (author), Veeger, H.E.J. (author)An important performance determinant in wheelchair sports is the power exchanged between the athlete-wheelchair combination and the environment, in short, mechanical power. Inertial measurement units (IMUs) might be used to estimate the exchanged mechanical power during wheelchair sports practice. However, to validly apply IMUs for mechanical...journal article 2024
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Tang, Xiaohan (author)Inertial Measurement Units (IMUs) have become increasingly popular human motion estimation due to their portability, self-contained features, and cost-effectiveness compared to marker-based sensing systems which rely on external cameras to observe the position of the markers. Over the years, many studies have proposed various models and...master thesis 2023
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van Dam, Nathalie (author)Propulsion power is an important metric in wheelchair racing. For a flat surface, it can be estimated from the sum of friction power and kinetic power. Usually, to determine friction power, the rolling and air drag coefficient first need to be determined with coast-down tests or other time-consuming methods. The aim of this paper was to...master thesis 2023
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Heringa, Louise (author)The first aim of this master thesis is to explore whether the normal force on the castor wheels can be estimated from IMU data using a machine learning approach. The second aim is to evaluate whether incorporating the changing load distribution due to trunk movement could improve the friction power estimation compared with neglecting changes in...master thesis 2023
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Brinkman, Anne (author)Background: The lack of access to electric powered wheelchairs for disabled people in low- and middle-income countries, that suit their rural environments, still remains an issue. Current available electric powered wheelchairs that do adapt to these rural environments are expensive and require complex control algorithms.<br/>Objective: The aim...master thesis 2023
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de Vries, W.H.K. (author), van der Slikke, R.M.A. (author), van Dijk, M.P. (author), Arnet, Ursina (author)Daily wheelchair ambulation is seen as a risk factor for shoulder problems, which are prevalent in manual wheelchair users. To examine the long-term effect of shoulder load from daily wheelchair ambulation on shoulder problems, quantification is required in real-life settings. In this study, we describe and validate a comprehensive and...journal article 2023
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Wiersma, Nathalja (author)The healthcare system in the Netherlands has trouble finding solutions for its complexity and fragmentation. Until now challenges like shortages, long lead times and lack of communication between stakeholders led to less satisfied customers. Welzorg wants to be able to provide more sufficient service. The customer is often overlooked. So the...master thesis 2022
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Leeuwis, Matto (author)Many wheelchair users, such as the elderly or children with Profound Intellectual and Multiple Disabilities (PIMD), rely on a caregiver to push them. The lack of eye contact between the wheelchair user and caregiver hinders communication and can even be dangerous, for example for children with epilepsy. Conventional wheelchairs place the...master thesis 2022
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van Dijk, M.P. (author), van der Slikke, R.M.A. (author), Rupf, Rob (author), Hoozemans, Marco J.M. (author), Berger, Monique A.M. (author), Veeger, H.E.J. (author)In wheelchair sports, the use of Inertial Measurement Units (IMUs) has proven to be one of the most accessible ways for ambulatory measurement of wheelchair kinematics. A three-IMU configuration, with one IMU attached to the wheelchair frame and two IMUs on each wheel axle, has previously shown accurate results and is considered optimal for...journal article 2022
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de Vries, Wiebe H.K. (author), Amrein, Sabrina (author), Arnet, Ursina (author), Mayrhuber, Laura (author), Ehrmann, Cristina (author), Veeger, H.E.J. (author)Shoulder problems (pain and pathology) are highly prevalent in manual wheelchair users with spinal cord injury. These problems lead to limitations in activities of daily life (ADL), labor- and leisure participation, and increase the health care costs. Shoulder problems are often associated with the long-term reliance on the upper limbs, and...journal article 2022
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Rooijmans, Robert (author)The main resistive force acting on the wheelchair during manual wheelchair propulsion is the rolling resistance. The magnitude of this rolling resistance is heavily influenced by the actions of the wheelchair user. By optimizing how wheelchair athletes move, this rolling resistance can be minimized, thereby improving their effective power output...master thesis 2021
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Schrauwen, mark (author)Many wheelchair users actively engage in wheelchair sports, for instance in the Paralympics. Trainers increasingly use the developments in sports technology for analysis. But wheelchair athletes do not benefit as much from these developments. A wheelchair can, for instance, disturb signal transmission. Recently, a set of studies describe the...master thesis 2021
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Smits, Jorinde (author)This IPD (Integrated Product Design) master thesis describes the development of the LooWee. The LooWee was developed in collaboration an electric wheelchair user in search for a new toileting solution for female wheelchair users. The goal of this thesis was the further research the idea and design a new toileting solution that could replace the...master thesis 2020
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De Klerk, R. (author), Vegter, R. J.K. (author), Veeger, H.E.J. (author), van der Woude, L.H.V. (author)The measurement of handrim wheelchair propulsion characteristics and performance in the field is complicated due to the non-stationary nature of wheelchair driving. In contrast, the laboratory provides a constrained and standardisable environment to conduct measurements and experiments. Apart from wheelchair treadmills, dynamometers or...journal article 2020
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De Klerk, Rick (author), Vegter, Riemer J.K. (author), Leving, Marika T. (author), de Groot, Sonja (author), Veeger, H.E.J. (author), van der Woude, Lucas H.V. (author)The use of a manual wheelchair is critical to 1% of the world's population. Human powered wheeled mobility research has considerably matured, which has led to improved research techniques becoming available over the last decades. To increase the understanding of wheeled mobility performance, monitoring, training, skill acquisition, and...journal article 2020
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De Witte, A. M.H. (author), van der Slikke, R.M.A. (author), Berger, M. A.M. (author), Hoozemans, M. J.M. (author), Veeger, H.E.J. (author), Van Der Woude, L. H.V. (author)OBJECTIVE: The purpose of this study was to determine the effects of seat height, wheelchair mass and grip on mobility performance among wheelchair basketball players and to investigate whether these effects differ between classification levels. METHODS: Elite wheelchair basketball players with a low (n= 11, class 1 or 1.5) or high (n= 10,...journal article 2020
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van der Slikke, R.M.A. (author), Berger, Monique A.M. (author), Bregman, D.J.J. (author), Veeger, H.E.J. (author)Athlete impairment level is an important factor in wheelchair mobility performance (WMP) in sports. Classification systems, aimed to compensate impairment level effects on performance, vary between sports. Improved understanding of resemblances and differences in WMP between sports could aid in optimizing the classification methodology....journal article 2020