Effect of optical flow versus attentional strategy on gait in Parkinson's Disease: a study with a portable optical stimulating device.

Journal of Neuroengineering and Rehabilitation
Maurizio FerrarinGiovanni Albani

Abstract

Several studies have demonstrated the capability of PD subjects to improve gait if appropriate visual cues are provided. Possible explanations referred to attentional factors and to the presence of optic flow on peripheral vision. The aim of the present study was to evaluate separately these two mechanisms in a group of fifteen subjects with Parkinson's Disease at different stages and in a group of ten age-matched controls. A microprocessor-controlled portable device implementing two different optical stimulation modalities has been used: bilateral continuous optic flow and unilateral reciprocal optical stimulus that is synchronized to the swing phase of gait. The latter allowed for the implementation of an attentional strategy. Results showed that mild PD subjects (H&Y<= 2) are responsive to forward oriented optic flow which produces an increment of gait cadence (+ 7.8%) and velocity (+ 8.1%) (p < 0.05), while PD subjects at more advanced stages (H&Y>2) tend to be more responsive to the attentional strategy, through an increase of stride length (+ 19.8%) and a compensatory decrease of cadence (- 16.2%). Although stated with caution due to the limited number of considered subjects, a possible descriptive model explaining the ab...Continue Reading

References

Dec 1, 1978·Brain : a Journal of Neurology·I Bodis-Wollner, M D Yahr
Nov 1, 1991·Trends in Neurosciences·M Glickstein, J Stein
Feb 1, 1992·Neurology·N GiladiS Fahn
Aug 1, 1990·Journal of the Neurological Sciences·O BlinG Serratrice
Jan 1, 1990·Movement Disorders : Official Journal of the Movement Disorder Society·M A DietzG T Stebbins
Aug 3, 1989·Nature·C J LueckR S Frackowiak
May 1, 1982·Annals of Neurology·I Bodis-WollnerJ Thornton
Aug 1, 1994·Brain : a Journal of Neurology·C D Marsden, J A Obeso
Apr 1, 1996·Brain : a Journal of Neurology·M E MorrisJ J Summers
Mar 1, 1997·Experimental Brain Research·T ProkopW Berger
Jun 1, 1997·Annals of Neurology·M DemirciM Hallett
Jul 1, 1997·Clinical EEG (electroencephalography)·I Bodis-Wollner
Mar 2, 1999·Brain : a Journal of Neurology·J P AzulayJ Pouget
Apr 7, 2000·Movement Disorders : Official Journal of the Movement Disorder Society·K KompolitiI M Siegel
Sep 27, 2000·Brain : a Journal of Neurology·G N LewisS E Walt
Dec 19, 2001·Movement Disorders : Official Journal of the Movement Disorder Society·A NieuwboerE Broens-Kaucsik
Jan 1, 1992·The European Journal of Neuroscience·Rüdiger J. Seitz, Per E. Roland
Jun 1, 1962·Brain : a Journal of Neurology·J P MARTIN, L J HURWITZ
Oct 2, 2003·Annals of Neurology·Claude-Alain MaurageAlain Destee
Jun 12, 2004·Medical & Biological Engineering & Computing·M FerrarinM Rabuffetti
Nov 8, 2005·Parkinsonism & Related Disorders·E van WegenG Kwakkel
Jun 13, 2006·Journal of the Neurological Sciences·Jean-Philippe AzulayOlivier Blin
Aug 17, 1963·British Medical Journal

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Citations

Sep 24, 2011·Parkinson's Disease·Quincy J Almeida, Haseel Bhatt
Sep 13, 2014·Human Movement Science·William Omar Contreras LopezJairo Alberto Espinoza Martinez

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