Evaluation of a threshold-based tri-axial accelerometer fall detection algorithm
Abstract Using simulated falls performed under supervised conditions and activities of daily living (ADL) performed by elderly subjects, the ability to discriminate between falls and ADL was investigated using tri-axial accelerometer sensors, mounted on the trunk and thigh. Data analysis was perform...
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| Veröffentlicht in: | Gait & posture 2007-07, Vol.26 (2), p.194-199 |
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| creator | Bourke, A.K O’Brien, J.V Lyons, G.M |
| description | Abstract Using simulated falls performed under supervised conditions and activities of daily living (ADL) performed by elderly subjects, the ability to discriminate between falls and ADL was investigated using tri-axial accelerometer sensors, mounted on the trunk and thigh. Data analysis was performed using M ATLAB to determine the peak accelerations recorded during eight different types of falls. These included; forward falls, backward falls and lateral falls left and right, performed with legs straight and flexed. Falls detection algorithms were devised using thresholding techniques. Falls could be distinguished from ADL for a total data set from 480 movements. This was accomplished using a single threshold determined by the fall-event data-set, applied to the resultant-magnitude acceleration signal from a tri-axial accelerometer located at the trunk. |
| doi_str_mv | 10.1016/j.gaitpost.2006.09.012 |
| format | Article |
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Data analysis was performed using M ATLAB to determine the peak accelerations recorded during eight different types of falls. These included; forward falls, backward falls and lateral falls left and right, performed with legs straight and flexed. Falls detection algorithms were devised using thresholding techniques. Falls could be distinguished from ADL for a total data set from 480 movements. This was accomplished using a single threshold determined by the fall-event data-set, applied to the resultant-magnitude acceleration signal from a tri-axial accelerometer located at the trunk.</abstract><cop>England</cop><pub>Elsevier B.V</pub><pmid>17101272</pmid><doi>10.1016/j.gaitpost.2006.09.012</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0966-6362 |
| ispartof | Gait & posture, 2007-07, Vol.26 (2), p.194-199 |
| issn | 0966-6362 1879-2219 |
| language | eng |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Acceleration Accelerometer Accidental Falls - prevention & control Activities of Daily Living ADL Aged Aged, 80 and over Biomechanical Phenomena Fall detection Falls in the elderly Female Humans Male Monitoring, Ambulatory - instrumentation Monitoring, Ambulatory - methods Movement - physiology Orthopedics Resultant-magnitude signal Sensitivity and Specificity |
| title | Evaluation of a threshold-based tri-axial accelerometer fall detection algorithm |
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