The effect of visual cues on the number and duration of freezing episodes in Parkinson's patients
Carinthian Tech Research, Villach 9524, Austria. email@example.com
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.
- ShuangLv 77 years agoFavorite Answer
卡林西亞州技術研究，9524，奧地利菲拉赫。 rosemarie.velik@ ctr.at
凍結步態帕金森氏症患者中是常見的現象，大大影響生活質量。感官線索已經知道提高行走性能，並降低凍結步態。視覺線索報告是特別有效的用於此目的。到目前為止，一般的感官線索不斷，即使在目前並不需要。然而，最近的做法表明，提供的線索，只是在凍結的情況下，實際發生。論點贊成這種“按需”提示的線索侵擾降低和減少習慣。在這裡，我們分析了影響視覺線索的數量和凍結發作持續時間激活時，只是“需求”或連續沒有提供線索的基準條件進行比較。為了這個目的，7帕金森氏症患者經常遭受凍結步態多次走過一個預先定義的課程和平行激光線投射在他們面前的地板上他們的反應進行了分析。結果表明，在基線條件相比，在連續提示的“按需”提示的69％和51％的平均時間減少了凍結。關於冷凍發作的數量，減少43％的發作觀察連續提示的，集“按需”提示的少9％。Source(s): network info + me