Marjolein van der Krogt
M.M. (Marjolein) van der Krogt, PhD
VU University Medical Center
Department of Rehabilitation Medicine
De Boelelaan 1117
1081 HV Amsterdam
Email: mmvanderkrogt@gmail.com
Research interests
- Computer simulation of human (pathological) walking.
- Gait deviations in children with cerebral palsy.
- The effects of muscle weakness on gait.
- Implementation of modeling outcomes in clinical practice, to enhance the information available to clinicians.
Postdoctoral fellowship
From June to December 2009 I worked as post-doctoral fellow at two institutes in the USA:
- James R. gage Center for Gait and Motion Analysis
Gillette Children’s Specialty Healthcare, St. Paul, MN USA
- Neuromuscular Biomechanics Lab (NMBL), Department of Bioengineering
Stanford University, Stanford, CA USA
This project is funded by a Ter Meulen Fund grant for pediatric medicine.
My project focusses on predicting the effects of muscle weakness on gait, using musculoskeletal modeling.
PhD: Gait deviations in children with cerebral palsy, a modeling approach
From September 2004 – May 2009 I worked as a PhD student at the VU University Medical Center, department of Rehabilitation Medicine.
The aim of my research was to gain more insight into gait deviations in children with cerebral palsy (CP). CP is motor disorder, caused by a lesion of the brain that has occurred before the first year of age. I studied how underlying problems in CP such as spasticity and muscle contractures affect the gait pattern, using musculoskeletal and forward dynamic modeling techniques.
In this movie you can see the musculoskeletal model walk like a patient with cerebral palsy:
CP gait model
Publications
International journal papers
Van der Krogt, M.M., Bregman, D.J., Wisse, M., Doorenbosch, C.A., Harlaar, J., Collins, S.H. (2010). How crouch gait can dynamically induce stiff-knee gait. Ann. Biomed. Eng., accepted
Van der Krogt, M.M., Doorenbosch, C.A., Becher, J.G., Harlaar, J., (2009). Walking speed modifies spasticity effects in gastrocnemius and soleus in cerebral palsy gait. Clin. Biomech. 24, 422-428
Van der Krogt, M.M., Doorenbosch, C.A., Harlaar, J., (2009). The effect of walking speed on hamstrings length and lengthening velocity in children with spastic cerebral palsy. Gait Posture 29, 640-644
Van der Krogt, M.M., de Graaf, W.W., Farley, C.T., Moritz, C.T., Casius, L.J.R., Bobbert, M.F., (2009). Robust passive dynamics of the musculoskeletal system compensate for unexpected surf changes during human hopping. J.Appl.Physiol. 107, 801-808.
Grunt, S., Van Kampen, P.J., Van der Krogt, M.M., Brehm, M.A., Doorenbosch, C.A., Becher, J., (2009). Reproducibility and Validity of Video Screen Measurements of Gait in children with Spastic Cerebral Palsy. Gait Posture, accepted
Van der Krogt, M.M., Doorenbosch, C.A., Harlaar, J., (2008). Validation of hamstrings musculoskeletal modeling by calculating peak hamstrings length at different hip angles. J.Biomech. 41, 1022-102
Van der Krogt, M.M., Doorenbosch, C.A.M., Harlaar, J. (2007) Muscle length and lengthening velocity in voluntary crouch gait. Gait & Posture 26; 532-538
Selected conference abstracts
Van der Krogt, M.M., Bregman, D.J., Wisse, M., Doorenbosch, C.A., Harlaar, J., Collins, S.H. (2009). How crouch gait can dynamically lead to stiff-knee gait. Gait Posture 30: S77.
Van der Krogt, M.M., Doorenbosch, C.A., Becher, J. G., Harlaar, J., (2008). Gait patterns vary with walking speed. Gait Posture 28: S98-S99.
Van der Krogt, M.M., Doorenbosch, C.A., Becher, J. G., Harlaar, J., (2008). Quantifying velocity-dependent gastrocnemius activity in spastic CP gait. Gait Posture 28: S97-S98.
Van der Krogt M.M., Doorenbosch C.A. & Harlaar J. (2008) Interacting effects of spasticity and walking speed on muscle-tendon length and lengthening velocity in children with cerebral palsy. Proceedings of Gait and Clinical Movement Analysis Society 2008
Van der Krogt M.M., Doorenbosch C.A. & Harlaar J. (2007) Dynamic spasticity of hamstrings muscle during gait in cerebral palsy. Gait & Posture 26 (Suppl.1) S13
Conference organization
I co-organized 2008′s Dynamic Walking meeting at the TU Delft.
I assisted in the organization of the Joint ESMAC and GCMAS meeting 2006 in Amsterdam.