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van der Burgh, B.J. (author), Filius, S.J. (author), Radaelli, G. (author), Harlaar, J. (author)Orthotic wrist supports will be beneficial for people with muscular weakness to keep their hand in a neutral rest position and prevent potential wrist contractures. Compensating the weight of the hands is complex since the level of support depends on both wrist and forearm orientations. To explore simplified approaches, two different weight...journal article 2024
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Poggensee, K. (author), Collins, Steven H. (author)Exoskeletons that assist in ankle plantarflexion can improve energy economy in locomotion. Characterizing the joint-level mechanisms behind these reductions in energy cost can lead to a better understanding of how people interact with these devices, as well as to improved device design and training protocols. We examined the biomechanical...journal article 2024
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Ipaki, Bahram (author), Saadat-Ramz, Zahra (author), Molenbroek, J.F.M. (author), Ali Faregh, Seyed (author)Nowadays, there are complications in the environments where the crutch is being used, which cause discomfort for users throughout the use and therapy period. There are many flaws in cities’ infrastructure. Using a simple search on the internet, it can be claimed that standard crutches have an array of design faults and ergonomic problems, and...journal article 2023
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van Trigt, B. (author), Bouman, F.F. (author), Leenen, Antonius J. R. (author), Hoozemans, Marco J.M. (author), van der Helm, F.C.T. (author), Veeger, H.E.J. (author)Medial elbow overuse injuries are rising in baseball. The external valgus torque magnitude is a possible risk factor for medial elbow injuries. The magnitude on its own cannot explain why one pitcher sustains an injury and another does not. Therefore, the aim of this study is to describe the within-individual external valgus torque variability...journal article 2022
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de Swart, A.F.M.J. (author), van Trigt, B. (author), Wasserberger, Kyle (author), Hoozemans, Marco J.M. (author), Veeger, H.E.J. (author), Oliver, Gretchen D. (author)It is generally accepted that most of the energy transferred to the ball during a baseball pitch is generated in the trunk and lower extremities. Therefore, purpose of this study was to assess the energy flow through the lower extremities during a baseball pitch. It was hypothesised that the (stabilising) leading leg mainly transfers energy...journal article 2022
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Leenen, A.J.R. (author), van Trigt, B. (author), Hoozemans, M. J.M. (author), Veeger, H.E.J. (author)Background: Baseball pitching performance can be mechanically explained by the summation of speed principle and the principle of optimal coordination of partial momenta. Impeding optimal energy generation or transfer by or between the pelvis and trunk segments could provide valuable insight into possible compensation or catch-up mechanisms...journal article 2022
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Willemsen, Koen (author), Tryfonidou, Marianna (author), Sakkers, Ralph (author), Castelein, René M. (author), Zadpoor, A.A. (author), Seevinck, Peter (author), Weinans, Harrie (author), Meij, Björn (author), van der Wal, Bart C.H. (author)A solution for challenging hip dysplasia surgery could be a patient-specific 3D-printed shelf implant that is positioned extra-articular and restores the dysplastic acetabular rim to normal anatomical dimensions. The anatomical correction and biomechanical stability of this concept were tested in a canine model that, like humans, also suffers...journal article 2022
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Mirakhorlo, M. (author), Kluft, N. (author), Desai, R.R. (author), Cvetković, M. (author), Irmak, T. (author), Shyrokau, B. (author), Happee, R. (author)In future automated vehicles we will often engage in non-driving tasks and will not watch the road. This will affect postural stabilization and may elicit discomfort or even motion sickness in dynamic driving. Future vehicles will accommodate this with properly designed seats and interiors, whereas comfortable vehicle motion will be achieved...journal article 2022
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Jahr, H. (author), Li, Y. (author), Zhou, J. (author), Zadpoor, A.A. (author), Schröder, AKi-Uwe (author)Treating large bone defects is still a clinical challenge without perfect solution, mainly due to the unavailability of suitable bone implants. Additively manufactured (AM) absorbable porous metals provide unparalleled opportunities to realize the challenging requirements for bone-mimetic implants. Firstly, multi-scale geometries of such...review 2021
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Bhattarai, Abhisek (author), Pouran, Behdad (author), Mäkelä, Janne T.A. (author), Shaikh, Rubina (author), Honkanen, Miitu K.M. (author), Prakash, Mithilesh (author), Kröger, Heikki (author), Grinstaff, Mark W. (author), Weinans, Harrie (author), Jurvelin, Jukka S. (author), Töyräs, Juha (author)Cationic computed tomography contrast agents are more sensitive for detecting cartilage degeneration than anionic or non-ionic agents. However, osteoarthritis-related loss of proteoglycans and increase in water content contrarily affect the diffusion of cationic contrast agents, limiting their sensitivity. The quantitative dual-energy...journal article 2020
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van der Krogt, Hanneke (author), Kouwijzer, Ingrid (author), Klomp, A. (author), Meskers, Carel G.M. (author), Arendzen, J. Hans (author), de Groot, Jurriaan H. (author)Purpose: Loss of selective muscle activation after stroke contributes to impaired arm function, is difficult to quantify and is not systematically assessed yet. The aim of this study was to describe and validate a technique for quantification of selective muscle activation of wrist flexor and extensor muscles in a cohort of post-stroke...journal article 2020
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Ladru, Bo Jane (author), Langhout, Rob (author), Veeger, H.E.J. (author), Gijssel, Maarten (author), Tak, M. (author)Understanding the biomechanics of the drag-flick is important for refining the performance of this task in field hockey. The aim of this study was to determine whether the maximal knee angle and maximal angular velocity of the lead knee extension are associated with ball speed in elite drag-flick players. The kinematics of the drag flick was...journal article 2019
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van Trigt, B. (author), Schallig, W. (author), van der Graaff, E. (author), Hoozemans, Marco J.M. (author), Veeger, H.E.J. (author)The purpose of this study was to determine whether stride length and knee angle of the leading leg at foot contact, at the instant of maximal external rotation of the shoulder, and at ball release are associated with ball speed in elite youth baseball pitchers. In this study, fifty-two elite youth baseball pitchers (mean age 15.2 SD (standard...journal article 2018
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Rahnamay Moshtagh, P. (author), Korthagen, Nicoline M. (author), Plomp, Saskia G. (author), Pouran, B. (author), Castelein, Rene M. (author), Zadpoor, A.A. (author), Weinans, Harrie (author)This study aims to investigate the earliest alterations of bone and cartilage tissues as a result of different exercise protocols in the knee joint of Wistar rats. We hypothesize that pretraining to a continuous intense running protocol would protect the animals from cartilage degeneration. Three groups of animals were used: (i) an adaptive ...journal article 2018
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de Gooijer-van de Groep, Karin L. (author), de Groot, Jurriaan H. (author), van der Krogt, Hanneke (author), de Vlugt, E. (author), Arendzen, J. Hans (author), Meskers, Carel G.M. (author)Background. The mechanism and time course of increased wrist joint stiffness poststroke and clinically observed wrist flexion deformity is still not well understood. The components contributing to increased joint stiffness are of neural reflexive and peripheral tissue origin and quantified by reflexive torque and muscle slack length and...journal article 2018
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van der Graaff, E (author), Hoozemans, M (author), Nijhoff, M. (author), Davidson, M (author), Hoezen, M (author), Veeger, H.E.J. (author)The objective of the present study was to examine the relative timing of pelvis and thorax rotations in achieving high throwing velocities in baseball pitching. During the preseason, a kinematic analysis was performed on eight pitchers. Peak angular velocities of the pelvis and thorax were determined and separation, defined as the time between...conference paper 2016
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Van Dijk, W. (author)Walking is a very efficient way of getting around and covering large distances. Due to impairments or in extreme conditions, such as carrying a heavy load, one might encounter difficulties while walking. In many cases, wheeled vehicles offer a solution. However, wheeled vehicles are often not suitable for indoor environments or heavy outdoor...doctoral thesis 2015
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Van der Krogt, H. (author), Klomp, A. (author), De Groot, J.H. (author), De Vlugt, E. (author), Van der Helm, F.C.T. (author), Meskers, C.G.M. (author), Arendzen, J.H. (author)Background: Understanding movement disorder after stroke and providing targeted treatment for post stroke patients requires valid and reliable identification of biomechanical (passive) and neural (active and reflexive) contributors. Aim of this study was to assess test-retest reliability of passive, active and reflexive parameters and to...journal article 2015
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Vegter, R.J.K. (author), Hartog, J. (author), De Groot, S. (author), Lamoth, C.J. (author), Bekker, M.J. (author), Van der Scheer, J.W. (author), Van der Woude, L.H.V. (author), Veeger, H.E.J. (author)Background To propel in an energy-efficient manner, handrim wheelchair users must learn to control the bimanually applied forces onto the rims, preserving both speed and direction of locomotion. Previous studies have found an increase in mechanical efficiency due to motor learning associated with changes in propulsion technique, but it is...journal article 2015
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Bolsterlee, B. (author)Insight into the mechanical interaction between muscles and bones can be of great help to understand normal function of the human body and to improve diagnoses and treatments of musculoskeletal disorders. This research presented in this thesis aims to improve the predictions of a musculoskeletal model of the shoulder and elbow (the Delft...doctoral thesis 2014
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