Publications - Neuromechanics Research Group

Michael H. Schwartz, Andrew J. Ries, Andrew G. Georgiadis, Hans Kainz

Demonstrating the utility of Instrumented Gait Analysis in the treatment of children with cerebral palsy
instrumented gait analysis, machine learning, clinical features, patient outcome
PLOS ONE 19(4), April 2024PDF

DOI: 10.1371/journal.pone.0301230

Hans Kainz, Willi Koller, Elias Wallnöfer, Till R. Bader, Gabriel T. Mindler, Andreas Kranzl

A framework based on subject-specific musculoskeletal models and Monte Carlo simulations to personalize muscle coordination retraining
muscle coordination retraining, muscle redundancy, monte carlo, joint contact forces, joint loads, gait retraining
Scientific Reports Volume 14, February 2024PDF

DOI: 10.1038/s41598-024-53857-9

Juliana Exel, David Deimel, Willi Koller, Cäcilia Werle, Arnold Baca, Daniela Maffiodo, Raffaella Sesana, Alessandro Colombo, Hans Kainz

Neuromechanics of finger hangs with arm lock-offs: analyzing joint moments and muscle activations to improve practice guidelines for climbing
climbing neuromechanics, joint moments, arm lock-offs, injury prevention, training optimization, muscle activity, musculoskeletal simulation
Frontiers in Sports and Active Living, October 2023PDF

DOI: 10.3389/fspor.2023.1251089

Gonçalves Basilio , Saxby DJ , Meinders E , Barrett RS , Diamond LE

Hip Contact Forces During Sprinting in Femoroacetabular Impingement Syndrome
femoroacetabular impingement, fai syndrome, running, loading, joint biomechanics
Medicine and Science in Sports and Exercise 56 (3), March 2024

DOI: 10.1249/mss.0000000000003320

Paul Kaufmann, Willi Koller, Elias Wallnöfer, Basilio Goncalves, Arnold Baca, Hans Kainz

Trial-to-trial similarity and distinctness of muscle synergy activation coefficients increases during learning and with a higher level of movement proficiency
muscle synergies, motor control, learning tasks, intra-session learning, emg,
PDF

DOI: Preprint: 10.1101/2023.09.19.558460

Willi Koller, Arnold Baca, Hans Kainz

The gait pattern and not the femoral morphology is the main contributor to asymmetric hip joint loading
cerebral palsy, femoral deformities, gait pattern, musculoskeletal simulation, personalized modelling, clinical decision making
PLoS ONE Volume 18, September 2023PDF

DOI: 10.1371/journal.pone.0291789

Hans Kainz, Gabriel Mindler, Andreas Kranzl

Influence of femoral anteversion angle and neck-shaft angle on muscle forces and joint loading during walking
femoral geometry, joint loads, OpenSim, musculoskeletal simulations, co-contraction, anteversion
PLoS ONE Volume 18, October 2023PDF

DOI: doi.org/10.1371/journal.pone.0291458

Willi Koller, Basílio Gonçalves, Arnold Baca, Hans Kainz

Intra- and inter-subject variability of femoral growth plate stresses in typically developing children and children with cerebral palsy
femoral growth plate, cerebral palsy, femoral deformities, growth plate, musculoskeletal simulation, finite element analysis, osteogenic index, personalized modelling
Frontiers in Bioengineering and Biotechnology, Section Biomechanics, February 2023; Highlights from the 27^th Congress of the European Society of Biomechanics, 2022PDF

DOI: 10.3389/fbioe.2023.1140527

Willi Koller, Elias Wallnöfer, Jana Holder, Arnold Baca, Hans Kainz

Femoral growth plate stresses in children with cerebral palsy compared to typically developing children
Gait & Posture, Volume 106, September 2023PDF

DOI: 10.1016/j.gaitpost.2023.07.128

Hans Kainz, Willi Koller, Elias Wallnöfer, Gabriel Minder, Andreas Kranzl

Musculoskeletal modelling informed muscle coordination re-training to reduce knee joint loads
Gait & Posture, Volume 106, September 2023PDF

DOI: 10.1016/j.gaitpost.2023.08.023

Basilio Goncalves, Willi Koller, Kira Schmitz, Arnold Baca, Hans Kainz

Effects of simulated healthy gait patters in children with idiopathic torsion deformities
Gait & Posture, Volume 106, September 2023PDF

DOI: 10.1016/j.gaitpost.2023.07.084

Bernhard Guggenberger, Brian Horsak, Andreas Habersack, Colin Smith, Martin Svehlik, Hans Kainz

Internal lower limb rotation increases patella cartilage pressure in individuals with patellofemoral instability
Gait & Posture, Volume 106, September 2023PDF

DOI: 10.1016/j.gaitpost.2023.07.088

Willi Koller, Andreas Kranzl, Arnold Baca, Hans Kainz

Net joint moments versus internal joint loading: Can we trust correlations between joint moments and contact forces from generic-scaled models?
Gait & Posture, Volume 100, March 2023PDF

DOI: 10.1016/j.gaitpost.2022.11.022

Elias Kaj Wallnöfer, Paul Kaufmann, Willi Koller, Hans Kainz

Influences of EMG-informed musculoskeletal simulation approaches on estimations of lower limb muscle and joint contact forces
Gait & Posture, Volume 100, March 2023PDF

DOI: 10.1016/j.gaitpost.2022.11.024

Bernhard Guggenberger, Brian Horsak, Andreas Habersack, Colin R. Smith, Hans Kainz, Martin Svehlik

Different walking strategies impact patella cartilage pressure in individuals with patellofemoral instability
Gait & Posture, Volume 100, March 2023PDF

DOI: 10.1016/j.gaitpost.2022.11.025

Hans Kainz, Ilse Jonkers

Imaging-based musculoskeletal models alter muscle and joint contact forces but do not improve the agreement with experimentally measured electromyography signals in children with cerebral palsy
Personalized musculoskeletal model, muscles forces, joint forces, OpenSim, Magnetic resonance images, EMG
Gait & Posture Volume 100

DOI: 10.1016/j.gaitpost.2022.11.019

Hans Kainz, Gabriel T. Mindler, Andreas Kranzl

How do the femoral anteversion angle and neck-shaft angle influence muscle forces and joint loading during walking?
femoral morphology, muscles forces, joint forces, OpenSim

DOI: 10.21203/rs.3.rs-2293229/v1

Hans Kainz, Andreas Kranzl

In-toeing gait requires less muscular effort and reduces lower limb joint loads in people with internal torsional deformities
gait pathology, torsional deformities, muscular effort, joint loads, OpenSim
Gait & Posture Volume 97, September 2022PDF

DOI: 10.1016/j.gaitpost.2022.07.239

B Guggenberger, B Horsak, A Habersack, C Smith, M Svehlik, H Kainz

The influence of different walking strategies on patellofemoral and tibiofemoral contact forces in individuals with patellofemoral instability
walking strategies, patellofemoral instability, joint loads
Gait & Posture Volume 97, September 2022PDF

DOI: 10.1016/j.gaitpost.2022.07.052

B Horsak, M Simonlehner, B Dumphart, H Kainz, B Killen,I Jonkers

Patella-femoral joint loading during the modified Star Excursion Balance Test: Preliminary results of an extensive simulation study
walking strategies, patellofemoral instability, joint loads
Gait & Posture Volume 97, September 2022PDF

DOI: 10.1016/j.gaitpost.2022.07.013

Hans Kainz, Willi Koller, Paul Kaufmann, Fabian Unglaube, Andreas Kranzl, Arnold Baca

Impact of Bony Geometry on Static Optimization Based Estimations of Muscle Activations and Forces
torsional deformities, muscle activation, joint loads, OpenSim
PDF

DOI: 10.11128/arep.17.a17042

Callum Buehler^†, Willi Koller^†, Florentina De Comtes and Hans Kainz

Quantifying Muscle Forces and Joint Loading During Hip Exercises Performed With and Without an Elastic Resistance Band
Musculoskeletal modeling, Elastic Resistance Band, Osteoarthritis, Muscle strenghtening, Rehabilitation
Frontiers in Sports and Active Living, August 2021PDF

DOI: 10.3389/fspor.2021.695383

K Veerkamp, Hans Kainz, B A Killen, H Jónasdóttir, M van der Krogta

Torsion Tool: An automated tool for personalising femoral and tibial geometries in OpenSim musculoskeletal models
Musculoskeletal modeling, Femoral anteversion, Tibial torsion, Cerebral pals, Subject-specific
Journal of Biomechanics, August 2021PDF

DOI: 10.1016/j.jbiomech.2021.110589

Hans Kainz, B. A. Killen A. V. Campenhout, K. Desloovere, J. M. G. Aznar, S. Shefelbine, I. Jonkers

ESB clinical biomechanics award 2020: Pelvis and hip movement strategies discriminate typical and pathological femoral growth – Insights gained from a multi-scale mechanobiological modelling framework
Muscuoskeletal model; Cerebral palsy; Gait analysis; OpenSim; Magnetic resonance images; bone growth
Clinical Biomechanics Volume 87, July 2021PDF

DOI: 10.1016/j.clinbiomech.2021.105405

Hans Kainz, Mariska Wesseling, Ilse Jonkers

Generic scaled versus subject-specific models for the calculation of musculoskeletal loading in cerebral palsy gait: Effect of personalized musculoskeletal geometry outweighs the effect of personalized neural control
Muscuoskeletal model; Cerebral palsy; Gait analysis; OpenSim; Magnetic resonance images; Electromyography
Clinical Biomechanics Volume 87, July 2021PDF

DOI: 10.1016/j.clinbiomech.2021.105402

B Horsak, C Schwab, S Durstberger, A Thajer, S Greber-Platzer, Hans Kainz, I Jonkers, A Kranzl

3D free-hand ultrasound to register anatomical landmarks at the pelvis and localize the hip joint center in lean and obese individuals
3DFUS; pelvis anatomical landmarks; hip joint center; lean; obese
Scientifc Reports 11, 2021PDF

DOI: 10.1038/s41598-021-89763-7

Hans Kainz, Michael H. Schwartz

The importance of a consistent workflow to estimate muscle-tendon lengths based on joint angles from the conventional gait model
Muscle length; musculoskeletal modelling; conventional gait model; scaling; cerebral palsy; OpenSim
Gait & Posture Volume 88, July 2021PDF

DOI: 10.1016/j.gaitpost.2021.04.039

Michael H. Schwartz, Hans Kainz, Andrew G. Georgiadis

Estimating Causal Treatment Effects of Femoral and Tibial Derotational Osteotomies on Foot Progression in Children with Cerebral Palsy
keywords: machine learning, femoral and tibial derotational osteotomies, cerebral palsy
PDF

DOI: 10.1101/2021.03.04.21252476

I Vandekerckhove, M Wesseling, Hans Kainz, K Desloovere, I Jonkers

The effect of hip muscle weakness and femoral bony deformities on gait performance
Keywords: cerebral palsy, hip muscle weakness, femoral bony deformities, gait performance
Gait & Posture Volume 83, January 2021, Pages 280-286 PDF

DOI: 10.1016/j.gaitpost.2020.10.022

W Koller, A Baca, H Kainz

Impact of scaling errors of the thigh and shank segments on musculoskeletal simulation results
keywords: musculoskeletal simulations, scaling, cerebral palsy, opensim
Gait & Posture Volume 87, June 2021PDF

DOI: 10.1016/j.gaitpost.2021.02.016

W Koller, A Baca. H Kainz

Asymmetric gait pattern versus femoral morphology – What is the main reason for asymmetric hip joint loading?
Conference: Virtual ESMAC 2021
Gait & Posture Volume 90 October 2021

DOI: 10.1016/j.gaitpost.2021.09.065

H Kainz, M H Schwartz

Hints and pitfalls for estimating muscle-tendon lengths based on joint angles from the conventional gait model
Conference: Virtual ESMAC 2021
Gait & Posture Volume 90 October 2021

DOI: 10.1016/j.gaitpost.2021.09.058

C Schwab, S Durstberger, H Kainz, A Baca, A Thajer, S Greber-Platzer, J Ilse, B Horsak, A Kranzl

Accuracy of 3-dimensional freehand ultrasound to estimate anatomical landmarks in children and adolescents with obesity
Conference: Virtual ESMAC 2021
Gait & Posture Volume 90 October 2021

DOI: 10.1016/j.gaitpost.2021.09.120

A Falisse, L Pitto, Hans Kainz, H Hoang, M Wesseling, S Van Rossom, E Papageorgiou, L Bar-On, A Hallemans, K Desloovere, G Molenaers, A Van Campenhout, F De Groote, I Jonkers

Physics-based simulations to predict the differential effects of motor control and musculoskeletal deficits on gait dysfunction in cerebral palsy: a retrospective case study
Keywords: Physics-Based Simulations, Cerebral palsy, Case Study
Frontiers in human neuroscience Volume 14, February 2020 PDF

DOI: 10.3389/fnhum.2020.00040

S Van Rossom, H Kainz, M Wesseling, E Papageorgiou, F De Groote, A Van Campenhout, G Molenaers, K Desloovere, I Jonkers

Single-event multilevel surgery, but not botulinum toxin injections normalize joint loading in cerebral palsy patients
Keywords: Cerebral palsy, Botox, Single-event multilevel surgery, Joint loading, Gait
Clinical Biomechanics Volume 76, June 2020 PDF

DOI: 10.1016/j.clinbiomech.2020.105025

Hans Kainz, B A Killen, M Wesseling, F Perez-Boerema, L Pitto, J M Garcia Aznar, S Shefelbine, I Jonkers

A multi-scale modelling framework combining musculoskeletal rigid-body simulations with adaptive finite element analyses, to evaluate the impact of femoral geometry on hip joint contact forces and femoral bone growth
Keywords: cerebral palsy, musculoskeletal modelling, bone growth, finite element analyses
PloS one Volume 15, July 2020 PDF

DOI: 10.1371/journal.pone.0235966

M Wesseling, H Kainz, T Hoekstra, S Van Rossom, K Desloovere, F De Groote, I Jonkers

Botulinum toxin injections minimally affect modelled muscle forces during gait in children with cerebral palsy
Keywords: cerebral palsy, musculoskeletal modelling, EMG-constrained optimization, botulinum toxin type A injections
Gait & Posture Volume 82, October 2020, Pages 54-60 PDF

DOI: 10.1016/j.gaitpost.2020.08.122

S Durstberger, C Schwab, M Simonlehner, Hans Kainz, A Kranzl, B Horsak

Evaluating 3D free-hand ultrasound as an alternative approach to register anatomical landmarks: A test-retest study in lean and overweight participants
Conference: Virtual ESMAC 2020
Gait & Posture Volume 81, September 2020

DOI: 10.1016/j.gaitpost.2020.07.072

C Schwab, S Durstberger, A Kranzl, M Simonlehner, Hans Kainz, B Horsak

Evaluating the accuracy of a 3D free-hand ultrasound technique for bone segmentation in clinical gait analysis
Conference: Virtual ESMAC 2020
Gait & Posture Volume 81, September 2020

DOI: 10.1016/j.gaitpost.2020.08.064

Hans Kainz, A Van Campenhout, J M Garcia Aznar, S Shefelbine, I Jonkers

Lack of hip and knee joint extension in children with cerebral palsy contribute to pathological femoral bone growth
Conference: ESMAC 2020
Gait & Posture Volume 81, Supplement 1, September 2020, Pages 172-173

DOI: 10.1016/j.gaitpost.2020.07.121