RT Conference Proceedings
T1 The effect of visual cues on the number and duration of freezing episodes in Parkinson's patients
A1 Velik, Rosemarie
A1 Hoffmann, Ulrich
A1 Zabaleta, Haritz
A1 Marti Masso, Jose Felix
A1 Keller, Thierry
AB Freezing of gait is a phenomenon common in Parkinson's patients and significantly affects quality of life. Sensory cues have been known to improve walking performance and reduce freezing of gait. Visual cues are reported to be particularly effective for this purpose. So far, sensory cues have generally been provided continuously, even when currently not needed. However, a recent approach suggests the provision of cues just in the case that freezing actually occurs. The arguments in favor of this on-demand cueing are reduced intrusiveness and reduced habituation to cues. Here, we analyzed the effect of visual cues on the number and duration of freezing episodes when activated either just on-demand or continuously and compare it to the baseline condition where no cue is provided. For this purpose, 7 Parkinson's patients regularly suffering from freezing of gait repeatedly walked a pre-defined course and their reaction to parallel laser lines projected in front of them on the floor was analyzed. The results show that, in comparison to the baseline condition, the mean duration of freezing was reduced by 51% in continuous cueing and by 69% in on-demand cueing. Concerning the number of freezing episodes, 43% fewer episodes were observed for continuous cueing and 9% less episodes for on-demand cueing.
SN 9781424441198
SN 1557-170X
YR 2012
FD 2012
LK https://hdl.handle.net/11556/1791
UL https://hdl.handle.net/11556/1791
LA eng
NO Velik , R , Hoffmann , U , Zabaleta , H , Marti Masso , J F & Keller , T 2012 , The effect of visual cues on the number and duration of freezing episodes in Parkinson's patients . in 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012 . , 6347005 , Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS , pp. 4656-4659 , 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012 , San Diego, CA , United States , 28/08/12 . https://doi.org/10.1109/EMBC.2012.6347005
NO conference
DS TECNALIA Publications
RD 26 jul 2024