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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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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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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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The influence of the exclusion of central necrosis on [¹⁸F]FDG PET radiomic analysis

Noortman, Wyanne A. (author), Vriens, Dennis (author), Mooij, C.D.Y. (author), Slump, Cornelis H. (author), Aarntzen, Erik H. (author), van Berkel, Anouk (author), Timmers, Henri J.L.M. (author), Bussink, Johan (author), Meijer, Tineke W.H. (author), de Geus-Oei, Lioe Fee (author), van Velden, Floris H.P. (author)

Background: Central necrosis can be detected on [¹⁸F]FDG PET/CT as a region with little to no tracer uptake. Currently, there is no consensus regarding the inclusion of regions of central necrosis during volume of interest (VOI) delineation for radiomic analysis. The aim of this study was to assess how central necrosis affects...

journal article 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

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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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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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Graph-time spectral analysis for atrial fibrillation

Sun, M. (author), Isufi, E. (author), de Groot, N.M.S. (author), Hendriks, R.C. (author)

Atrial fibrillation is a clinical arrhythmia with multifactorial mechanisms still unresolved. Time-frequency analysis of epicardial electrograms has been investigated to study atrial fibrillation. However, deeper understanding can be achieved by incorporating the spatial dimension. Unfortunately, the physical models describing the spatial...

journal article 2020

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Effects of a Disturbed Kinetic Chain in the Fastball Pitch on Elbow Kinetics and Ball Speed

Leenen, A.J.R. (author), van Trigt, B. (author), Hoozemans, Marco J.M. (author), Veeger, H.E.J. (author)

The purpose of the present study was to investigate the effect of an experimentally imposed kinetic chain disturbance in baseball pitching on ball speed and elbow kinetics. The experimental design consisted of two (within-subject) conditions. In one condition there was no manipulation (control condition). The other condition involved a...

journal article 2020

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Are UCL Injuries a Matter of Bad Luck?: The Role of Variability and Fatigue Quantified

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

Upper extremity injuries are common in baseball. One of these is the ulnar collateral ligament (UCL) injury. In the field of sports injuries, most research focuses on average kinematics and kinetics between subjects, whereas focusing on within-subject variability appears to be more relevant for determining injury risk. We constructed a simple...

journal article 2020

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Measuring handrim wheelchair propulsion in the lab: A critical analysis of stationary ergometers

De Klerk, Rick (author), Vegter, Riemer Jakobs K. (author), Goosey-Tolfrey, Vicky L. (author), Mason, Barry S. (author), Lenton, John P. (author), Veeger, H.E.J. (author), van der Woude, L.H.V. (author)

There are many ways to simulate handrim wheelchair propulsion in the laboratory. Ideally, these would be able to, at least mechanically, simulate field conditions. This narrative review provides an overview of the lab-based equipment used in published research and critically assesses their ability to simulate and measure wheelchair propulsion...

journal article 2020

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Predicting Global Cognitive Decline in the General Population Using the Disease State Index

Cremers, Lotte G.M. (author), Huizinga, Wyke (author), Niessen, W.J. (author), Krestin, Gabriel P. (author), Poot, D.H.J. (author), Ikram, M. Arfan (author), Lötjönen, Jyrki (author), Klein, S. (author), Vernooij, Meike W. (author)

Background: Identifying persons at risk for cognitive decline may aid in early detection of persons at risk of dementia and to select those that would benefit most from therapeutic or preventive measures for dementia. Objective: In this study we aimed to validate whether cognitive decline in the general population can be predicted with...

journal article 2020

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Technical note: a novel servo-driven dual-roller handrim wheelchair ergometer

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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Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion

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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Effects of seat height, wheelchair mass and additional grip on a field-based wheelchair basketball mobility performance test

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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Wearable Wheelchair Mobility Performance Measurement in Basketball, Rugby, and Tennis: Lessons for classification and training

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

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Fear of movement is not associated with trunk movement variability during gait in patients with low back pain

Veeger, Thom T.J. (author), van Trigt, B. (author), Hu, Hai (author), Bruijn, Sjoerd M. (author), van Dieën, Jaap H. (author)

BACKGROUND: Literature describing differences in motor control between low back pain (LBP) patients and healthy controls is very inconsistent, which may be an indication for the existence of subgroups. Pain-related psychological factors might play a role causing these differences. PURPOSE: To examine the relation between fear of movement and...

journal article 2020

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Improved local activation time annotation of fractionated atrial electrograms for atrial mapping

Abdi, Bahareh (author), Hendriks, R.C. (author), van der Veen, A.J. (author), de Groot, N.M.S. (author)

Background: Local activation time (LAT) annotation in unipolar electrograms is complicated by interference from nonlocal atrial activities of neighboring tissue. This happens due to the spatial blurring that is inherent to electrogram recordings. In this study, we aim to exploit multi-electrode electrogram recordings to amplify the local...

journal article 2020