I'm intrigued by the complex elegance of the human movement system. How it allows us to perform normal daily task and (sometimes less normal) leisure activities, but also what happens when this system is affected by pathology. As a human movement scientist I apply theoretical models to understand the performance of the human movement system in healthy and pathological state. These models can be derived from the field of biomechanics, physiology or motor control and often a combination of these. My major challenge is to use these models to solve practical problems from rehabilitation, with a main focus on restoration of walking ability in people after lower limb amputation, stroke or cerebral Palsy.
The results of these research projects are directly implemented in the different teaching programs of Human Movement Sciences VU, and in the clinical services provided at the exercise and movement laboratory at Heliomare.
I have supervised 6 PhD students and have (co-) authored over 70 papers in international scientific journals. I have been president of the Society of Movement Analysis Laboratories in the Low Lands (Smalll) and currently I'm president of the Dutch Chapter of the Society for Prosthetics and Orthotics (ISPO-NL).
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Excerpts of scientific work
- SPEXOR passive spinal exoskeleton decreases metabolic cost during symmetric repetitive lifting
- Cardiorespiratory fitness and physical strain during prosthetic rehabilitation after lower limb amputation
- The effect of a passive trunk exoskeleton on metabolic costs during lifting and walking
Experienced sitting-related problems and association with personal, lesion and wheelchair characteristics in persons with long-standing paraplegia and tetraplegia
ALLRISC, Jul 2019, In : Spinal Cord. 57, 7, p. 603-613 11 p.
- Influence of arm swing on cost of transport during walking
- Dynamic alignment using external socket reaction moments in trans-tibial amputees
- Lower limb muscle fatigue during walking in children with cerebral palsy
- Are the effects of internal focus instructions different from external focus instructions given during balance training in stroke patients? A double-blind randomized controlled trial
- Validation of the stabilometer balance test: Bridging the gap between clinical and research based balance control assessments for stroke patients
- A comparison of the physiology of sedentary behavior and light physical activity in adults with and without a physical disability
- The effect of a passive trunk exoskeleton on functional performance in healthy individuals
- Energy storing and return prosthetic feet improve step length symmetry while preserving margins of stability in persons with transtibial amputation
- Over-focused? The relation between patients' inclination for conscious control and single- and dual-task motor performance after stroke
- How physical therapists instruct patients with stroke: an observational study on attentional focus during gait rehabilitation after stroke
- Regulation of step frequency in transtibial amputee endurance athletes using a running-specific prosthesis
- Squat test performance and execution in children with and without cerebral palsy
- Is Implicit Motor Learning Preserved after Stroke? A Systematic Review with Meta-Analysis
An incremental shuttle wheel test for wheelchair tennis players
de Groot, S., Valent, L. J., Fickert, R., Pluim, B. M. & Houdijk, H., 1 Nov 2016, In : International Journal of Sports Physiology and Performance. 11, 8, p. 1111-1114 4 p.
- Coactivation During Dynamometry Testing in Adolescents With Spastic Cerebral Palsy
- Optimal calibration of instrumented treadmills using an instrumented pole
- Relations between muscle endurance and subjectively reported fatigue, walking capacity, and participation in mildly affected adolescents with cerebral palsy
- The inclination for conscious motor control after stroke: validating the Movement-Specific Reinvestment Scale for use in inpatient stroke patients
- Van Terry Fox naar Marlou van Rhijn: Over de veerkracht tijdens hardlopen met een beenprothese
Differentiation between solid-ankle cushioned heel and energy storage and return prosthetic foot based on step-to-step transition cost
Wezenberg, D., Cutti, A. G., Bruno, A. & Houdijk, H., 2014, In : Journal of Rehabilitation Research and Development. 51, 10, p. 1579-1590 12 p.
- Does clinical rehabilitation impose sufficient cardiorespiratory strain to improve aerobic fitness?
- Feasibility and Validity of a Graded One-Legged Cycle Exercise Test to Determine Peak Aerobic Capacity in Older People With a Lower-Limb Amputation
- Assessing gait adaptability in people with a unilateral amputation on an instrumented treadmill with a projected visual context.
- Speeding up or slowing down?: Gait adaptations to preserve gait stability in response to balance perturbations
- Peak oxygen consumption in older adults with a lower limb amputation.
- Mind your step: Energy cost while walking at an enforced gait pattern
- An EMG-driven model applied for predicting metabolic energy consumption during movement
- Energy expenditure of stroke patients during postural control tasks
- Polypropylene ankle foot orthoses to overcome drop-foot gait in central neurological patients: a mechanical and functional evaluation
- Effects of hand cycle training on wheelchair capacity during clinical rehabilitation in persons with a spinal cord injury
- Metabolic cost and mechanical work during walking after tibiotalar arthrodesis and the influence of footwear
- Variability and stability analysis of walking of transfemoral amputees
- Metabolic cost and mechanical work for the step-to-step transition in walking after successful total ankle arthroplasty
- The energy cost for the step-to-step transition in amputee walking
- The energy cost for balance control during upright standing
- Beneficial and Limiting Factors Affecting Return to Work After Total Knee and Hip Arthroplasty: A Systematic Review
- Effects of hand cycle training on physical capacity in individuals with tetraplegia: a clinical trial
- Influence of hand cycling on physical capacity in the rehabilitation of persons with a spinal cord injury: A longitudinal cohort study
- Joint stiffness of the ankle during walking after successful mobile-bearing total ankle replacement
Validity of DynaPort GaitMonitor for assessment of spatiotemporal parameters in amputee gait
Houdijk, H., Appelman, F. M., Van Velzen, J. M., Van Der Woude, L. H. V. & van Bennekom, C. A. M., 2008, In : Journal of Rehabilitation Research and Development. 45, 9, p. 1335-1342 8 p.
- The effects of upper body exercise on the physical capacity of people with a spinal cord injury: a systematic review
- Gait analysis after successful mobile bearing total ankle replacement.
- Het klappen van de schaats
- A technical history of the klapskate
- Mechanism of leg stiffness adjustment for hopping on surfaces of different stiffnesses
- Klappen voor wereldrecords
Excerpts of scientific work
Improving Movement Automaticity and Dual-Task Performance in People with Stroke: A Change of Focus?
Kal, E. C., 2018, 312 p.
Balance Control in Human Walking: An Energetic Perspective
IJmker, T., 2015
Step by step: Stepping strategies to prevent falling while walking
Hak, L., 2014
Optimizing Prosthetic Gait: Balancing capacity and load
Wezenberg, D., 2013
The effects of hand cycling on physical capacity in persons with spinal cord injury
Valent, L. J. M., 2009
The Klapskate. Shifting Gears in Speed Skating
Houdijk, J. H. P., 2001