Effects of interventions on normalizing step width during self-paced dual-belt treadmill walking with virtual reality, a randomised controlled trial

I. L. B. Oude Lansink*, L. van Kouwenhove, P. U. Dijkstra, K. Postema, J. M. Hijmans

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

8 Citaten (Scopus)


Background: Step width is increased during dual-belt treadmill walking, in self-paced mode with virtual reality. Generally a familiarization period is thought to be necessary to normalize step width.

Aim: The aim of this randomised study was to analyze the effects of two interventions on step width, to reduce the familiarization period.

Methods: We used the GRAIL (Gait Real-time Analysis Interactive Lab), a dual-belt treadmill with virtual reality in the self-paced mode. Thirty healthy young adults were randomly allocated to three groups and asked to walk at their preferred speed for 5 min. In the first session, the control-group received no intervention, the 'walk-on-the-line'-group was instructed to walk on a line, projected on the between-belt gap of the treadmill and the feedback-group received feedback about their current step width and were asked to reduce it. Interventions started after 1 min and lasted 1 min. During the second session, 7-10 days later, no interventions were given.

Findings: Linear mixed modeling showed that interventions did not have an effect on step width after the intervention period in session 1. Initial step width (second 30 s) of session 1 was larger than initial step width of session 2. Step width normalized after 2 min and variation in step width stabilized after 1 min.

Interpretation: Interventions do not reduce step width after intervention period. A 2-min familiarization period is sufficient to normalize and stabilize step width, in healthy young adults, regardless of interventions. A standardized intervention to normalize step width is not necessary.

Originele taal-2English
Pagina's (van-tot)121-125
Aantal pagina's5
TijdschriftGait & Posture
StatusPublished - okt-2017

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