Assessing abnormal gaits of Parkinson’s disease patients using a wearable motion detector
نویسندگان
چکیده
Accelerometers have been widely used in wearable systems for gait analysis. Several gait cycle parameters are provided to quantify the level of gait regularity and symmetry. This study attempts to assess abnormal gaits of Parkinson disease (PD) patients based on the gait cycle parameters derived in real-time from an accelerometry-based wearable motion detector. The results of an experiment with 25 healthy young adults showed that there were significant differences between gait cycle parameters of normal gaits and abnormal gaits derived from the wearable motion detector. Five PD patients diagnosed as Hoehn & Yahr stage I to II were recruited. It is difficult to collect data of abnormal gaits of the PD patients; therefore, ranges of the gait cycle parameters of abnormal gaits of PD patients were estimated statistically based on the “lower confidence limit” of the gait cycle parameters of their normal gaits. These results may lead to the future development of wearable sensors enabling real-time recognition of abnormal gaits of PD patients. Ambulatory rehabilitation, gait assessment and personal telecare for people with gait disorders are also possible applications.
منابع مشابه
Real-Time Gait Cycle Parameter Recognition Using a Wearable Accelerometry System
This paper presents the development of a wearable accelerometry system for real-time gait cycle parameter recognition. Using a tri-axial accelerometer, the wearable motion detector is a single waist-mounted device to measure trunk accelerations during walking. Several gait cycle parameters, including cadence, step regularity, stride regularity and step symmetry can be estimated in real-time by ...
متن کاملWearable sensor network for health monitoring: the case of Parkinson disease
The aim of this paper is to show how wearable sensors can be useful in health solutions, improving the continuous monitoring and management of patients. This paper is focused on the available solution for motion analysis, providing a description of human motion features which can be measured through the use of wearable sensors. Moreover, this paper presents an example of wearable solution used ...
متن کاملDetection and Classification for Freezing of Gaits in Parkinson’s Disease Using Inertial Measurement Units
Freezing of Gaits(FOG) is a phenomenon in Parkinson’s Disease characterised by a short period of inability to initiate a gait or by a series of short steps with tremors on lower limbs, which mostly occurs when initiating gaits and turning. For researchers in health therapy, it is important to identify the instances of freezing of gait (FoG), in order to study the gait of a person suffering with...
متن کاملWearable and wireless accelerometer systems for monitoring Parkinson’s disease patients—A perspective review
Parkinson’s disease is a growing medical concern as societies, such as the United States of America, become progressively aged. Therapy strategies exist for the amelioration of Parkinson’s disease symptoms, and the quantification of attributes, such as hand tremor, can provide valuable feedback. Wearable and wireless accelerometer systems for monitoring Parkinson’s disease patients have been pr...
متن کاملVertical ground reaction force marker for Parkinson’s disease
Parkinson's disease (PD) patients regularly exhibit abnormal gait patterns. Automated differentiation of abnormal gait from normal gait can serve as a potential tool for early diagnosis as well as monitoring the effect of PD treatment. The aim of current study is to differentiate PD patients from healthy controls, on the basis of features derived from plantar vertical ground reaction force (VGR...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2014