Sensors 2014, 14(4), 6819-6827; doi:10.3390/s140406819

Detection of Freezing of Gait in Parkinson Disease: Preliminary Results

1,* email, 1email, 2email, 2email, 2email and 3email
Received: 23 December 2013; in revised form: 9 April 2014 / Accepted: 10 April 2014 / Published: 15 April 2014
(This article belongs to the Special Issue Wearable Gait Sensors)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Freezing of gait (FOG) is a common symptom in Parkinsonism, which affects the gait pattern and is associated to a fall risk. Automatized FOG episode detection would allow systematic assessment of patient state and objective evaluation of the clinical effects of treatments. Techniques have been proposed in the literature to identify FOG episodes based on the frequency properties of inertial sensor signals. Our objective here is to adapt and extend these FOG detectors in order to include other associated gait pattern changes, like festination. The proposed approach is based on a single wireless inertial sensor placed on the patient’s lower limbs. The preliminary experimental results show that existing frequency-based freezing detectors are not sufficient to detect all FOG and festination episodes and that the observation of some gait parameters such as stride length and cadence are valuable inputs to anticipate the occurrence of upcoming FOG events.
Keywords: freezing of gait (FOG); festination; inertial measurement units; gait parameters; Parkinson’s disease
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MDPI and ACS Style

Azevedo Coste, C.; Sijobert, B.; Pissard-Gibollet, R.; Pasquier, M.; Espiau, B.; Geny, C. Detection of Freezing of Gait in Parkinson Disease: Preliminary Results. Sensors 2014, 14, 6819-6827.

AMA Style

Azevedo Coste C, Sijobert B, Pissard-Gibollet R, Pasquier M, Espiau B, Geny C. Detection of Freezing of Gait in Parkinson Disease: Preliminary Results. Sensors. 2014; 14(4):6819-6827.

Chicago/Turabian Style

Azevedo Coste, Christine; Sijobert, Benoît; Pissard-Gibollet, Roger; Pasquier, Maud; Espiau, Bernard; Geny, Christian. 2014. "Detection of Freezing of Gait in Parkinson Disease: Preliminary Results." Sensors 14, no. 4: 6819-6827.

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