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Electromyography-driven model-based estimation of ankle torque and stiffness during dynamic joint rotations in perturbed and unperturbed conditions

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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The effect of an occlusion-induced delay on braking behavior in critical situations: A driving simulator study

de Winter, J.C.F. (author), Saffarian, M (author), Senders, John W. (author)

Objective: To share results of an experiment that used visual occlusion for a new purpose: inducing a waiting time. Background: Senders was a leading figure in human factors. In his research on the visual demands of driving, he used occlusion techniques. Methods: In a simulator experiment, we examined how drivers brake for different levels of...

journal article 2022

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Management of displaced humeral surgical neck fractures in daily clinical practice: hanging does not re-align the fracture

Spek, Reinier W.A. (author), Hoogervorst, Lotje A. (author), Elias, Michaëla E.C. (author), Jaarsma, Ruurd L. (author), Veeger, H.E.J. (author), Doornberg, Job N. (author), Jutte, Paul C. (author), van den Bekerom, Michel P.J. (author)

Introduction: It is unclear if the collar and cuff treatment improve alignment in displaced surgical neck fractures of the proximal humerus. Therefore, this study evaluated if the neckshaft angle and extent of displacement would improve between trauma and onset of radiographically visible callus in non-operatively treated surgical neck...

journal article 2022

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Shoulder kinematics and muscle activity following latissimus dorsi transfer for massive irreparable posterosuperior rotator cuff tears in shoulders with pseudoparalysis

Gurnani, Navin (author), Willems, W. Jaap (author), van Deurzen, Derek F.P. (author), Weening, Alexander A. (author), Bouwer, Joran (author), Janssen, Thomas W.J. (author), Veeger, H.E.J. (author)

Background: The aim of this study was to evaluate the thoracohumeral (TH) and glenohumeral (GH) motion with muscle activity after latissimus dorsi transfer (LDT) in a shoulder with a massive irreparable posterosuperior rotator cuff tear (MIRT) and pseudoparalysis compared with the asymptomatic contralateral shoulder (ACS). Methods: We...

journal article 2022

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Obtaining wheelchair kinematics with one sensor only? The trade-off between number of inertial sensors and accuracy for measuring wheelchair mobility performance in sports

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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Feasibility of a home-based physiotherapy intervention to promote post-stroke mobility: A randomized controlled pilot study

Jarbandhan, Ameerani (author), Toelsie, Jerry (author), Veeger, H.E.J. (author), Bipat, Robbert (author), Vanhees, Luc (author), Buys, Roselien (author)

Objectives Home-based physiotherapy interventions to improve post-stroke mobility are successful in high-income countries. These programs require less resources compared to center-based programs. However, feasibility of such an intervention in a low and middle-income setting remains unknown. Therefore, the SunRISe (Stroke Rehabilitation In...

journal article 2022

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Critical appraisal of technologies to assess electrical activity during atrial fibrillation: a position paper from the European Heart Rhythm Association and European Society of Cardiology Working Group on eCardiology in collaboration with the Heart Rhythm Society, Asia Pacific Heart Rhythm Society, Latin American Heart Rhythm Society and Computing in Cardiology

de Groot, N.M.S. (author), Shah, Dipen (author), Boyle, Patrick M. (author), Anter, Elad (author), Clifford, Gari D. (author), Deisenhofer, Isabel (author), van Dessel, Pascal (author), Dilaveris, Polychronis (author), van der Veen, A.J. (author)

We aim to provide a critical appraisal of basic concepts underlying signal recording and processing technologies applied for (i) atrial fibrillation (AF) mapping to unravel AF mechanisms and/or identifying target sites for AF therapy and (ii) AF detection, to optimize usage of technologies, stimulate research aimed at closing knowledge gaps,...

journal article 2022

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Human monoclonal antibodies against Staphylococcus aureus surface antigens recognize in vitro and in vivo biofilm

de Vor, Lisanne (author), van Dijk, Bruce (author), van Kessel, Kok (author), Kavanaugh, Jeffrey S. (author), de Haas, Carla (author), Aerts, Piet C. (author), Ramakers, R.M. (author), Beekman, F.J. (author), Weinans, Harrie (author)

Implant-associated Staphylococcus aureus infections are difficult to treat because of biofilm formation. Bacteria in a biofilm are often insensitive to antibiotics and host immunity. Monoclonal antibodies (mAbs) could provide an alternative approach to improve the diagnosis and potential treatment of biofilm-related infections. Here, we show...

journal article 2022

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Shoulder muscle activity after latissimus dorsi transfer in an active elevation

Gurnani, Navin (author), van Deurzen, Derek F.P. (author), Willems, W. Jaap (author), Janssen, Thomas W.J. (author), Veeger, H.E.J. (author)

Background: After latissimus dorsi transfer (LDT), an increase in scapulothoracic (ST) contribution in thoracohumeral (TH) elevation is observed when compared to the asymptomatic shoulder. It is not known which shoulder muscles contribute to this change in shoulder kinematics, and whether the timing of muscle recruitment has altered after LDT...

journal article 2022

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Quantification of the development of trunk control in healthy infants using inertial measurement units

Blok, Janneke (author), Poggensee, K. (author), Lemus Perez, D.S. (author), Kok, M. (author), Pangalila, Robert F. (author), Vallery, H. (author), Deferme, Jolien (author), Toussaint-Duyster, Leontien (author), Horemans, H.L.D. (author)

Trunk motor control is essential for the proper functioning of the upper extremities and is an important predictor of gait capacity in children with delayed development. Early diagnosis and intervention could increase the trunk motor capabilities in later life, but current tools used to assess the level of trunk motor control are largely...

conference paper 2022

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Energy flow through the lower extremities in high school baseball pitching

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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Individualised Ball Speed Prediction in Baseball Pitching Based on IMU Data

Gomaz, L. (author), Veeger, H.E.J. (author), van der Graaff, E. (author), van Trigt, B. (author), van der Meulen, F.H. (author)

Ball velocity is considered an important performance measure in baseball pitching. Proper pitching mechanics play an important role in both maximising ball velocity and injury-free participation of baseball pitchers. However, an individual pitcher’s characteristics display individuality and may contribute to velocity imparted to the ball. The...

journal article 2021

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Machine Learning to Improve Orientation Estimation in Sports Situations Challenging for Inertial Sensor Use

van Dijk, M.P. (author), Kok, M. (author), Berger, Monique A.M. (author), Hoozemans, Marco J.M. (author), Veeger, H.E.J. (author)

In sports, inertial measurement units are often used to measure the orientation of human body segments. A Madgwick (MW) filter can be used to obtain accurate inertial measurement unit (IMU) orientation estimates. This filter combines two different orientation estimates by applying a correction of the (1) gyroscope-based estimate in the...

journal article 2021

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Fixation effects of different types of cannulated screws on vertical femoral neck fracture: A finite element analysis and experimental study

Zhan, Shi (author), Jiang, Dajun (author), Ling, Ming (author), Ding, Jian (author), Yang, Kai (author), Duan, Lei (author), Tsai, Tsung Yuan (author), Feng, Yong (author), van Trigt, B. (author), Jia, Weitao (author), Zhang, Changqing (author), Hu, Hai (author)

Femoral neck fractures (FNFs) in young patients usually result from high-energy violence, and the vertical transcervical type is typically challenging for its instability. FNFs are commonly treated with three cannulated screws (CS), but the role of screws type on fixation effects (FE) is unclear. The purpose of this study was to evaluate the...

journal article 2021

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Quantifying neural and non-neural components of wrist hyper-resistance after stroke: Comparing two instrumented assessment methods

Andringa, Aukje (author), Meskers, Carel (author), van de Port, Ingrid (author), Zandvliet, Sarah (author), Scholte, Larissa (author), de Groot, J.H. (author), Kwakkel, Gert (author), van Wegen, Erwin (author)

Patients with poor upper limb motor recovery after stroke are likely to develop increased resistance to passive wrist extension, i.e., wrist hyper-resistance. Quantification of the underlying neural and non-neural elastic components is of clinical interest. This cross-sectional study compared two methods: a commercially available device ...

journal article 2021

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Establishing the Role of Elbow Muscles by Evaluating Muscle Activation and Co-contraction Levels at Maximal External Rotation in Fastball Pitching

van Trigt, B. (author), Galjee, E.N. (author), Hoozemans, Marco J.M. (author), van der Helm, F.C.T. (author), Veeger, H.E.J. (author)

Background: Baseball pitching is associated with a high prevalence of ulnar collateral ligament injuries, potentially due to the high external valgus load on the medial side of the elbow at the instant of maximal shoulder external rotation (MER). In-vitro studies show that external valgus torque is resisted by the ulnar collateral ligament but...

journal article 2021

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Progression along data-driven disease timelines is predictive of Alzheimer's disease in a population-based cohort

Venkatraghavan, Vikram (author), Vinke, Elisabeth J. (author), Bron, Esther E. (author), Niessen, W.J. (author), Arfan Ikram, M. (author), Klein, S. (author), Vernooij, Meike W. (author)

Data-driven disease progression models have provided important insight into the timeline of brain changes in AD phenotypes. However, their utility in predicting the progression of pre-symptomatic AD in a population-based setting has not yet been investigated. In this study, we investigated if the disease timelines constructed in a case...

journal article 2021

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Digital biomarkers and algorithms for detection of atrial fibrillation using surface electrocardiograms: A systematic review: Digital Biomarkers for AF in Surface ECGs

Wesselius, F.J. (author), van Schie, M.S. (author), de Groot, N.M.S. (author), Hendriks, R.C. (author)

Aims: Automated detection of atrial fibrillation (AF) in continuous rhythm registrations is essential in order to prevent complications and optimize treatment of AF. Many algorithms have been developed to detect AF in surface electrocardiograms (ECGs) during the past few years. The aim of this systematic review is to gain more insight into...

review 2021

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The ulnar collateral ligament loading paradox between in-vitro and in-vivo studies on baseball pitching (narrative review)

van Trigt, B. (author), Vliegen, Liset (author), Leenen, Ton (author), Veeger, H.E.J. (author)

Ulnar collateral ligament (UCL) weakening or tears occur in 16% of professional baseball pitchers. To prevent players from sustaining a UCL injury, it is important to understand the relationship between the UCL properties and elbow stabilizers with the load on the UCL during pitching. In-vitro studies showed that the ultimate external valgus...

review 2021

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Theta but not beta power is positively associated with better explicit motor task learning

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