dr. S.M. Bruijn (Sjoerd)

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+31 20 59 88528
faculteit der gedrags- en bewegingswetenschappen ( sectie neuromechanics )

S.M. (Sjoerd) Bruijn, PhD


PhD project
PhD Thesis: Bruijn, S.M. (2010) Is Stability an Unstable Concept? Quantifying dynamic stability of human locomotion. VU Publishers: Amsterdam, The Netherlands. ISBN: 9789086594559

During my PhD project, I focused on the question of how stability during gait can be measured, and started focussing on methods derived from mathematics, and actual perturbations to do so. I developed a set-up that could be used to perturb subjects during treadmill walking, as well as a method to analyse these perturbations. I then studied the statistical precision and sensitivity of stability measures which may be derived from steady state walking, and used them to study if slow walking is more stable, and to what extent the arms contribute to stability in human walking. Subsequently, I studied whether these measures could also be calculated from a simple wearable sensor, and used Galvanic Vestibular Stimulation to see whether these measures can distinguish stable from unstable walking during overground walking. My supervisors for this project were Jaap van Dieen, Peter Beek and Onno Meijer.

Other research interests

  • I did my internship on the coordination of transverse pelvis and thorax rotations during walking, and continue to have an interest in the coordination of the trunk while walking (see Bruijn et al., 2008; Wu et al., 2008), and am currently working on a project on this topic.
  • Since my masters thesis about the debate between Camillo Golgi and Ramon Y Cajal, two Nobel prize winners at the beginning of the 19th century (see for example Grant, 2007), and largely due to the enthusiasm of my supervisor Onno Meijer, I became interested in historical research on human movement sciences. At the moment I am not really working on anything historical, but turning my masters thesis into a paper is still one of our plans.

Research set-up
In the future I will post some pictures and details of my research set-up, which we use to perturb subjects during treadmill walking.



My new website is at: https://sites.google.com/site/smbruijn/


Laatste wijzigingen Nevenwerkzaamheden: Amsterdam 27 januari 2017