TY  - GEN
A1  - Martinek, Johannes
A1  - Stickler, Yvonne
A1  - Dohnal, Fahdi
A1  - Reichel, Martin
A1  - Mayr, Winfried
A1  - Rattay, Frank
T1  - Simulation der elektrischen Stimulation im menschlichen Oberschenkel mit Hilfe von FEMLAB
KW  - Electrical Stimulation
KW  - Muscle Stimulation
Y1  - 2019
ER  - 
TY  - GEN
A1  - Mandl, Thomas
A1  - Dohnal, Fahdi
A1  - Stickler, Yvonne
A1  - Martinek, Johannes
A1  - Reichel, Martin
A1  - Mayr, Winfried
A1  - Rattay, Frank
T1  - FE-Modellierung für Implantate als Alternative zur transkutanen Elektrostimulation des langzeitdenervierten Oberschenkels
KW  - Implants
KW  - Denervation
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Mandl, Thomas
A1  - Martinek, Johannes
A1  - Mayr, Winfried
A1  - Rattay, Frank
A1  - Reichel, Martin
T1  - Towards a numerical 3D model of Functional Electrical Stimulation of denervated, degenerated human skeletal muscle
T2  - Proceedings of the 21st European Modeling and Simulation Symposium
KW  - Electrical Stimulation
KW  - Muscle Stimulation
KW  - Skeletal Muscle
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Martinek, Johannes
A1  - Mandl, Thomas
A1  - Mayr, Winfried
A1  - Rattay, Frank
A1  - Reichel, Martin
T1  - Coupling Effects in the Bidomain Model of Functional Electrical Stimulation
T2  - Proceedings of the 21st European Modeling and Simulation Symposium
KW  - Electrical Stimulation
Y1  - 2019
ER  - 
TY  - JOUR
A1  - Martinek, Johannes
A1  - Stickler, Yvonne
A1  - Reichel, Martin
A1  - Mayr, Winfried
A1  - Rattay, Frank
T1  - A novel approach to simulate Hodgkin-Huxley-like excitation with COMSOL multiphysics
JF  - Artificial Organs
KW  - Multiphysics
Y1  - 2019
VL  - 32
IS  - 8
SP  - 614
EP  - 619
ER  - 
TY  - GEN
A1  - Martinek, Johannes
A1  - Stickler, Yvonne
A1  - Mayr, Winfried
A1  - Rattay, Frank
T1  - Influence of the electrode position on the electrical field distribution and excitation of a denervated muscle fiber
KW  - Muscle Fiber
KW  - Muscle Excitation
Y1  - 2019
ER  - 
TY  - JOUR
A1  - Stickler, Yvonne
A1  - Martinek, Johannes
A1  - Hofer, Christian
A1  - Rattay, Frank
T1  - A finite element model of the electrically stimulated human thigh: changes due to denervation and training
JF  - Artifical Organs
KW  - Electrical Stimulation
KW  - Muscle Stimulation
Y1  - 2019
IS  - Volume 32 Issue 8
SP  - 620
EP  - 624
ER  - 
TY  - CHAP
A1  - Reichel, Martin
A1  - Martinek, Johannes
A1  - Koppelstätter, Norbert
T1  - Angewandte Informatik-Jahresprojekte in selbstorganisierten Gruppen, gewichtete Leistungsbeurteilung
T2  - DICFO-Beispiele guter Lehre an Fachhochschulen
KW  - Didactics
KW  - Teaching
KW  - Computer Science
Y1  - 2019
SP  - 45
EP  - 48
ER  - 
TY  - CHAP
A1  - Martinek, Johannes
A1  - Stickler, Yvonne
A1  - Reichel, Martin
A1  - Rattay, Frank
T1  - Simulating Hodgkin-Huxley like Excitation using Comsol Multiphysics
T2  - Proceeding Comsol Conference, Hannover (Germany)
KW  - Multiphysics
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Reichel, Martin
A1  - Martinek, Johannes
A1  - Mandl, Thomas
A1  - Mayr, Winfried
A1  - Rattay, Frank
T1  - Development of modeling functional electrical stimulation in denervated muscle
T2  - Proceedings of the 9th Vienna international workshop on functional electrostimulation
KW  - Electrical Stimulation
KW  - Muscle Stimulation
KW  - Muscle Denervation
Y1  - 2019
SP  - 159
EP  - 162
ER  - 
TY  - CHAP
A1  - Martinek, Johannes
A1  - Stickler, Yvonne
A1  - Dohnal, Fahdi
A1  - Reichel, Martin
A1  - Mayr, Winfried
A1  - Rattay, Frank
T1  - Simulation der elektrischen Stimulation im menschlichen Oberschenkel mit Hilfe von FEMLAB
T2  - Neue Wege der Multiphysik Simulation
KW  - Muscle Stimulation
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Martinek, Johannes
A1  - Stickler, Yvonne
A1  - Reichel, Martin
A1  - Rattay, Frank
T1  - A new approach to simulate Hodgkin - Huxley like excitatation with FEMLAB
T2  - Proceedings of the 9-th Vienna international workshop on functional electrostimulation, Krems (Austria)
KW  - Neurons
Y1  - 2019
SP  - 163
EP  - 166
ER  - 
TY  - GEN
A1  - Rattay, Frank
A1  - Martinek, Johannes
A1  - Stickler, Yvonne
A1  - Minassian, Karen
T1  - Simulationen zur Funktionellen Elektrostimulation: Effektive Elektrodenkonfigurationen zur Muskelstimulation
KW  - Electrical Stimulation
KW  - Muscle Stimulation
Y1  - 2019
ER  - 
TY  - JOUR
A1  - Martinek, Johannes
A1  - Reichel, Martin
A1  - Rattay, Frank
A1  - Mayr, Winfried
T1  - Analysis of calculated electrical activation of denervated muscle fibres in the human thigh
JF  - Artificial Organs
KW  - Muscle Stimulation
KW  - Electrical Stimulation
KW  - Muscle Denervation
Y1  - 2019
VL  - 29
IS  - 6
SP  - 444
EP  - 447
ER  - 
TY  - GEN
A1  - Martinek, Johannes
A1  - Sticker, Yvonne
A1  - Reichel, Martin
A1  - Rattay, Frank
T1  - Electrical stimulation of denervated skeletal muscles: a modeling study of transcutaneous stimulation
KW  - Electrical Stimulation
KW  - Muscle Stimulation
Y1  - 2019
ER  - 
TY  - GEN
A1  - Martinek, Johannes
A1  - Reichl, Martin
A1  - Strummer, Martin
A1  - Schmöllebeck, Fritz
T1  - Fachhochschule Technikum Wien – Femlab in der Lehre
KW  - Laboratory
KW  - Teaching
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Rattay, Frank
A1  - Reichel, Martin
A1  - Martinek, Johannes
A1  - Persy, Ilse
A1  - Resatz, Susanne
A1  - Mayr, Winfried
T1  - Functional electrical stimulation of denervated skeletal muscles: a modeling study
T2  - Proceedings of the 25th Annual International Conference of the Engineering in Medicine and Biology Society
KW  - Electrical Stimulation
KW  - Muscle Stimulation
KW  - Muscle Denervation
Y1  - 2019
SP  - 1557
EP  - 1560
ER  - 
TY  - CHAP
A1  - Reichel, Martin
A1  - Martinek, Johannes
A1  - Mayr, Winfried
A1  - Rattay, Frank
T1  - Functional electrical stimulation of denervated skeletal muscle fibers in 3D human thigh-modeling and simulation
T2  - Proceedings of the 8th Vienna international workshop on functional electrostimulation
KW  - Muscle Stimulation
KW  - Muscle Denervation
KW  - Electrical Stimulation
Y1  - 2019
SP  - 44
EP  - 47
ER  - 
TY  - CHAP
A1  - Martinek, Johannes
A1  - Reichel, Martin
A1  - Rattay, Frank
A1  - Mayr, Winfried
T1  - Simulation and Analysis of Electric Activiation of Denervated Muscle Fibres in the Human Thigh
T2  - FEM Workshop / Tagungsbandbeitrag / Ulm (Germany)
KW  - Electrical Stimulation
KW  - Muscle Stimulation
Y1  - 2019
SP  - 103
EP  - 107
ER  - 
TY  - GEN
A1  - Martinek, Johannes
A1  - Reichel, Martin
A1  - Mayr, Winfried
A1  - Rattay, Frank
T1  - Analyse der Aktivierung von denervierten Muskelfasern im menschlichen Oberschenkel bei FES
KW  - Muscle Denervation
KW  - Thigh
KW  - Muscle Stimulation
Y1  - 2019
ER  - 
TY  - GEN
A1  - Reichel, Martin
A1  - Martinek, Johannes
A1  - Rattay, Frank
A1  - Mayr, Winfried
T1  - Simulation der Funktionellen Elektrostimulation an der denervierten Oberschenkelmuskulatur
KW  - Electrical Stimulation
KW  - Muscle Stimulation
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Mandl, Thomas
A1  - Martinek, Johannes
A1  - Bijak, Manfred
A1  - Lanmüller, Hermann
A1  - Mayr, Winfried
A1  - Pichler, Markus
T1  - 10-th Vienna international workshop on functionalelectrostimulation and 15th IFESS Annual Conference
T2  - Proceedings / Center for Medical Physicsand Biomedical Engineering, Medical University of Vienna / Vienna Medical School / ISBN 3-900928-09-5 / 388 S.
KW  - Electrostimulation
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Martinek, Johannes
A1  - Reichel, Martin
A1  - Rattay, Frank
A1  - Mayr, Winfried
T1  - Simulation and Analysis of Electric Activation of Denervated Muscle Fibres in the Human Thigh
T2  - Proceedings of FEM Workshop
KW  - Electrical Stimulation
KW  - Muscle Denervation
KW  - Thigh
Y1  - 2019
SP  - 103
EP  - 107
ER  - 
TY  - GEN
A1  - Reichel, Martin
A1  - Martinek, Johannes
A1  - Rattay, Frank
A1  - Mayr, Winfried
T1  - Simulation der Funktioniellen Elektrostimulation an der denervierten Oberschenkelmuskulatur
KW  - Electrical Stimulation
KW  - Muscle Stimulation
KW  - Muscle Denervation
Y1  - 2019
ER  - 
TY  - GEN
A1  - Martinek, Johannes
A1  - Rattay, Frank
A1  - Mayr, Winfried
T1  - Analysis of calculated electrical activation of denervated muscle fibres in the human thigh
KW  - Muscle Denervation
KW  - Electrical Stimulation
KW  - Muscle Stimulation
Y1  - 2019
ER  - 
TY  - GEN
A1  - Martinek, Johannes
A1  - Reichel, Martin
A1  - Strummer, Mario
A1  - Schmöllebeck, Fritz
T1  - Fachhochschule Technikum Wien - Fernlab in der Lehre
KW  - University
KW  - Teaching
KW  - Laboratory
KW  - eLearning
Y1  - 2019
ER  - 
TY  - JOUR
A1  - Stickler, Yvonne
A1  - Martinek, Johannes
A1  - Rattay, Frank
T1  - Modeling Needle Stimulation of Denervated Muscle Fibers: Voltage-Distance Relations and Fiber Polarization Effects
JF  - IEEE Transactions on Biomedical Engineering / IEEE Engineering in Medicine and Biology Society
KW  - Muscle Stimulation
KW  - Electric Stimulation
Y1  - 2019
VL  - Vol. 56
IS  - issue 10
ER  - 
TY  - JOUR
A1  - Stickler, Yvonne
A1  - Martinek, Johannes
A1  - Reichel, Martin
A1  - Rattay, Frank
T1  - Modeling the excitability of the denervated human thigh for the stimulation with surface and needle electrodes
JF  - Basic Applied Myology
KW  - Electric Stimulation
KW  - Muscle Stimulation
Y1  - 2019
VL  - Vol. 19
IS  - Issue 5
SP  - 237
EP  - 242
ER  - 
TY  - GEN
A1  - Reichel, Martin
A1  - Martinek, Johannes
A1  - Sauermann, Stefan
A1  - Schmöllebeck, Fritz
T1  - eHealth und eCard an der Fachhochschule Technikum Wien
KW  - eHealth
Y1  - 2019
ER  - 
TY  - CHAP
A1  - David, Veronika
A1  - Forjan, Mathias
A1  - Martinek, Johannes
A1  - Kotzian, Stefan
A1  - Jagos, Harald
A1  - Rafolt, Dietmar
T1  - Evaluation of Wearable Multimodal Sensor Insoles for Motion-pattern Measurements in Stroke Rehabilitation – a Pilot Study
T2  - IEEE-RAS-EMBS International Conference on Rehabilitation Robotics (ICORR 2017)
KW  - Stroke Patients
KW  - Rehabilitation
Y1  - 2018
ER  - 
TY  - GEN
A1  - David, Veronika
A1  - Forjan, Mathias
A1  - Martinek, Johannes
A1  - Kotzian, Stefan
A1  - Jagos, Harald
A1  - Rafolt, Dietmar
T1  - Evaluation of Wearable Multimodal Sensor Insoles for Motion-pattern Measurements in Stroke Rehabilitation – a Pilot Study
KW  - Stroke Patients
KW  - Rehabilitation
KW  - Shoes
Y1  - 2018
ER  - 
TY  - CHAP
A1  - Hörzer, S.
A1  - Fuchs, Christiane
A1  - Gastinger, R.
A1  - Sabo, Anton
A1  - Mehnen, Lars
A1  - Martinek, Johannes
A1  - Reichel, Martin
T1  - Simulation of spinning soccer ball trajectories influenced by altitude
T2  - Procedia Engineering
KW  - Soccer
Y1  - 2019
SP  - 2461
EP  - 2466
ER  - 
TY  - GEN
A1  - Langer, Sarah
A1  - Nemec, Iris
A1  - Kollmitzer, Josef
A1  - Scherer, Matthias
A1  - Martinek, Johannes
T1  - Vergleich des decompositionierten und des überlagerten Elektromyogramms zur Analyse der Muskelermüdung
N2  - Ziel dieser Studie war das überlagerte Elektromyogramm (ueEMG) und das decompositionierte (dEMG) auf deren Reliabilität und Aussagekraft zu überprüfen. Hierfür vollzogen zehn gesunde männliche Probanden zu drei Testzeitpunkten isometrische Ermüdungsmessungen. Hintergrund Bei der Messung des ueEMG werden die Motor Units Aktionspotentiale (MUAPS) elektrisch überlagert. Physiologische Muskelermüdung zeigt sich hier unter anderem in der Veränderung des Frequenzspektrums und der Signalamplitude. Letzteres steigt bei Ermüdung an, wohingegen die mediane Frequenz (MF) sinkt. Eine weitere Möglichkeit die Muskelermüdung mittels Oberflächen-EMG zu ermitteln ist die Anwendung des dEMGs. Dieses ermöglicht mithilfe einer Mustererkennungssoftware einzelne MUAPS zu erkennen. Studien zeigten, dass aktive Motor Units (MU) bei wiederholten oder anhaltenden submaximalen Kontraktionen als Muskelermüdung ihre Feuerungsrate erhöhen und neue MU rekrutiert werden. Bisher wurden diese Methoden jeweils einzeln betrachtet. Um sicherzustellen welcher Ansatz für klinische Daten geeigneter ist, wurden Datensätze zu beiden Methoden gleichzeitig generiert und hinsichtlich ihrer Aussagekraft und Wiederholbarkeit mit statistischen Mitteln verglichen.
KW  - Elektromyogramm
KW  - Rehabilitationstechnik
Y1  - 2022
ER  -