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協助多發(fā)性硬化癥病人行走的裝置 【?2007-05-31 發(fā)布?】 美迪醫(yī)訊
最近,科學家發(fā)明了一種微型、可佩戴的裝置,這種裝置結合聽覺和視覺反饋能增強多發(fā)性硬化癥和帕金森綜合癥病人行走的速度以及邁步的跨度。 根據以色列Technion計算機科學學院學科帶頭人Yoram Baram的說法,這種裝置配備一種可戴、移動電話大小的音頻部件---可以檢測機體的運動,處理并把反饋信息通過耳脈傳回使用者,并安裝一個十年前發(fā)展的視覺反饋裝置。 視覺裝置鑲嵌在使用者的眼鏡上,很小但能傳輸真實的畫面。這能使用戶有效區(qū)分可行走的地面和障礙物,使用戶即使在復雜的地形或上下樓梯時也能方便自如。 多發(fā)性硬化癥和腦研究中心的Baram和Ariel Miller教授檢測了多發(fā)性硬化癥病人佩戴此裝置后的行走步態(tài)。 科學家發(fā)現聽力反饋能有效改善多發(fā)性硬化癥和帕金森綜合癥病人的行走步態(tài)。以行走速度為例,接受測試的病人當佩戴此裝置后,平均速度增加12.8%。 平均步幅在使用此裝置后增加8.30%。 “對于健康人,也配備了其他裝置,比如來源于肌肉神經的感覺反饋信號,可以調節(jié)肌肉運動,可以告訴使用者是否正確使用肌肉。”Baram說,“此反饋信號在帕金森綜合癥和多發(fā)性硬化癥病人以及老年人中是受損的,但聽力反饋可以幫助這些人,使其步行節(jié)奏穩(wěn)定。” 來源: American Technion Society Walking: Virtual Reality Helps Multiple Sclerosis Patients Scientists have created a small, wearable virtual reality device that combines auditory and visual feedback to improve walking speed and stride length in patients suffering from Multiple Sclerosis and Parkinson’s disease. According to lead researcher Professor Yoram Baram of the Faculty of Computer Science, Technion-Israel Institute of Technology, the device combines a wearable, cell phone-sized audio component – which measures body movement, processes it and sends feedback to the user through earphones – with a visual feedback apparatus he developed for Parkinson’s patients ten years ago. The visual component presents users with a virtual, tiled-floor image displayed on one eye via a tiny piece that clips onto glasses worn by the user. This allows the user to distinguish between the virtual floor and real obstacles, making it possible to navigate even rough terrain or stairs. Baram and Prof. Ariel Miller of the Faculty of Medicine and the Multiple Sclerosis and Brain Research Center at the Carmel Medical Center in Haifa examined the effects of the patented device on the gait quality of Multiple Sclerosis (MS) patients. The researchers found that auditory feedback significantly improved the gait of both MS and Parkinson’s patients (though the improvement was less pronounced in Parkinson’s patients). With regard to walking speed, patients showed an average improvement of 12.84% while wearing the device. There were also positive residual short-term therapeutic effects (18.75% improvement) after use. Average improvement in stride was 8.30% while wearing the device and 9.93% residually. “Healthy people have other tools, such as sensory feedback from muscles nerves, which report on muscle control, telling them whether or not they are using their muscles correctly,” says Baram. “This feedback is damaged in Parkinson and MS patients and the elderly, but auditory feedback can be used to help them walk at a fixed pace.” MEDICA.de; Source: American Technion Society 本文關鍵字:
多發(fā)性硬化癥 行走
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