J
Johannes P. van Dijk
Researcher at Eindhoven University of Technology
Publications - 68
Citations - 1631
Johannes P. van Dijk is an academic researcher from Eindhoven University of Technology. The author has contributed to research in topics: Population & Medicine. The author has an hindex of 21, co-authored 53 publications receiving 1296 citations. Previous affiliations of Johannes P. van Dijk include University of Ulm & VU University Amsterdam.
Papers
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Journal ArticleDOI
Using two-dimensional spatial information in decomposition of surface EMG signals
Bert U. Kleine,Bert U. Kleine,Johannes P. van Dijk,Johannes P. van Dijk,Bernd G. Lapatki,Bernd G. Lapatki,Bernd G. Lapatki,Machiel J. Zwarts,Machiel J. Zwarts,Dick F. Stegeman,Dick F. Stegeman +10 more
TL;DR: To detect the firing events of the MUs with a high accuracy, as needed for estimation of firing synchrony, two-dimensional information from the complete grid electrode appears essential.
Journal ArticleDOI
Quantitative muscle ultrasound is a promising longitudinal follow-up tool in Duchenne muscular dystrophy.
Merel Jansen,Nens van Alfen,Maria W.G. Nijhuis-van der Sanden,Johannes P. van Dijk,Sigrid Pillen,Imelda J. M. de Groot +5 more
TL;DR: A significant increase of echo intensity with age is found, reflecting increasing dystrophic muscle changes, related to ambulatory status, functional grading, muscle strength and motor ability.
Journal ArticleDOI
Quantitative gray-scale analysis in skeletal muscle ultrasound: a comparison study of two ultrasound devices.
Sigrid Pillen,Sigrid Pillen,Johannes P. van Dijk,Gert Weijers,Wilma Raijmann,Chris L. de Korte,Machiel J. Zwarts +6 more
TL;DR: A method to reliably use EI normal values established with one ultrasound device for use with another device, which is an important step forward toward the use of quantitative muscle ultrasound in daily clinical care.
Journal ArticleDOI
Motor Unit Number Index (MUNIX): A novel neurophysiological marker for neuromuscular disorders; test–retest reliability in healthy volunteers
Christoph Neuwirth,Sanjeev D. Nandedkar,Erik Stålberg,Paul E. Barkhaus,Mamede de Carvalho,Jasna Furtula,Johannes P. van Dijk,Reto Baldinger,José Castro,João Costa,Marit Otto,Arne Sandberg,Markus Weber,Markus Weber +13 more
TL;DR: MUNIX measurements in multiple muscles show good inter- and intra-rater reliability in healthy subjects and suggest that MUNIX could serve as a reliable marker for motor neuron loss in diseases like amyotrophic lateral sclerosis.
Journal ArticleDOI
Topographical Characteristics of Motor Units of the Lower Facial Musculature Revealed by Means of High-Density Surface EMG
Bernd G. Lapatki,Robert Oostenveld,Johannes P. van Dijk,Irmtrud E. Jonas,Machiel J. Zwarts,Dick F. Stegeman +5 more
TL;DR: This electrophysiological study revealed a distribution of the lower facial MU endplates in more or less restricted, distinct clusters on the muscle often with eccentric locations, adding substantially to the basic neurophysiologic and anatomical knowledge of the complex facial muscle system.