DocumentCode :
250101
Title :
A precise gait phase detection based on high-frequency vibration on lower limbs
Author :
Kadoya, Shuhei ; Nagaya, Naohisa ; Konyo, Masashi ; Tadokoro, S.
Author_Institution :
Dept. of Mech. & Aerosp. Eng., Tohoku Univ., Sendai, Japan
fYear :
2014
fDate :
May 31 2014-June 7 2014
Firstpage :
1852
Lastpage :
1857
Abstract :
A novel gait phase detection method that can extract the timing of foot contact conditions (Heel Strike and Toe Off) by a single piezo film sensor attached on each leg is proposed. We focused on the occurrence of high-frequency vibrations (> 100 Hz) in the beginning and the end of stance phases during gait. After the features of vibration waveforms during gait were confirmed, we proposed the phase detection method. The optimal parameters were investigated to detect the phases robustly despite the walking speed and the shoe types. Experimental results showed that the detected ground contact events had high accuracy of timing. Finally, we confirmed the feasibility with the prototype wearable device in usual environments.
Keywords :
footwear; gait analysis; piezoelectric transducers; vibrations; foot contact conditions; gait phase detection method; heel strike; high frequency vibration; lower limbs; piezofilm sensor; shoe types; toe off; walking speed; Foot; Footwear; Force; Legged locomotion; Phase detection; Timing; Vibrations;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Robotics and Automation (ICRA), 2014 IEEE International Conference on
Conference_Location :
Hong Kong
Type :
conf
DOI :
10.1109/ICRA.2014.6907102
Filename :
6907102
Link To Document :
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