A Comparison Study of Detection of Fog Episodes in Parkinson’s Disease Patients
Freezing of Gait (FOG) is an incapacitating gait disorder in Parkinson’s disease (PD) patients that manifests as
disruptions in walking with an abrupt and transient nature. Eventhough the patients with earlier stages of PD have been
reported experiencing FOG, it becomes more frequent in later stages of PD. It is very exhausting and decreases the quality of
life of PD patients. If FOG can be effectively detected before it happens, external cues can be provided to aid the patients to
avert the freezing phenomenon. Accelerometer sensors are widely utilized to measure the patient’s movements. EMG
sensors and EEG sensors are also utilized to accurately detect the FOG episodes. A comparison of this methods is given in
this paper. FOG detection can be used in a broad spectrum of health applications for patient monitoring, to enhance the
quality of life for PD patients, and to erode health care cost.
Index Terms: Freezing of Gait(FOG), Parkinson’s Disease(PD), Gait Analysis, Accelerometer, Gait Disturbance.