TY  - JOUR
PY  - 2012//
TI  - Detecting stumbles with a single accelerometer
JO  - Conference proceedings - IEEE engineering in medicine and biology society
A1  - Hajj Chehade, Nabil
A1  - Ozisik, Pinar
A1  - Gomez, James
A1  - Ramos, Fabio
A1  - Pottie, Greg
SP  - 6681
EP  - 6686
VL  - 2012
IS  - 
N2  - Falls are a common problem in the elderly population, and their prediction has been a major interest for the medical field. The relationship between stumbles and falls has not been very well understood yet. A critical requirement in advancing the study of this relationship is the realization of a realistic and effective stumble detection system. In this paper, we present a system for the detection of stumbles during walking. Our system consists of a single low cost triaxial accelerometer that may be worn by patients and is convenient for a wide range of subjects. We formulate the problem as an anomaly detection and we validate our system with a large data set collected from 9 subjects. The data set contains a total of 100 stumbles and 45 minutes of walking. We compare 7 different placements for the accelerometer, and show that our system achieves a 99% detection rate, with a 0.2% false alarm rate using an accelerometer worn on the chest.<p />  <p>Language: en</p>
LA  - en
SN  - 1557-170X
UR  - http://dx.doi.org/10.1109/EMBC.2012.6347527
ID  - ref1
ER  -