Dual-Task Elderly Gait of Prospective Fallers and Non-Fallers: A Wearable-Sensor Based Analysis
Wearable sensors could facilitate point of care, clinically feasible assessments of dynamic stability and associated fall risk through an assessment of single-task (ST) and dual-task (DT) walking. This study investigated gait changes between ST and DT walking and between older adult prospective fall...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-04-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/4/1275 |
| _version_ | 1818040252042838016 |
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| author | Jennifer Howcroft Edward D. Lemaire Jonathan Kofman William E. McIlroy |
| author_facet | Jennifer Howcroft Edward D. Lemaire Jonathan Kofman William E. McIlroy |
| author_sort | Jennifer Howcroft |
| collection | DOAJ |
| description | Wearable sensors could facilitate point of care, clinically feasible assessments of dynamic stability and associated fall risk through an assessment of single-task (ST) and dual-task (DT) walking. This study investigated gait changes between ST and DT walking and between older adult prospective fallers and non-fallers. The results were compared to a study based on retrospective fall occurrence. Seventy-five individuals (75.2 ± 6.6 years; 47 non-fallers, 28 fallers; 6 month prospective fall occurrence) walked 7.62 m under ST and DT conditions while wearing pressure-sensing insoles and accelerometers at the head, pelvis, and on both shanks. DT-induced gait changes included changes in temporal measures, centre of pressure (CoP) path stance deviations and coefficient of variation, acceleration descriptive statistics, Fast Fourier Transform (FFT) first quartile, ratio of even to odd harmonics, and maximum Lyapunov exponent. Compared to non-fallers, prospective fallers had significantly lower DT anterior–posterior CoP path stance coefficient of variation, DT head anterior–posterior FFT first quartile, ST left shank medial–lateral FFT first quartile, and ST right shank superior maximum acceleration. DT-induced gait changes were consistent regardless of faller status or when the fall occurred (retrospective or prospective). Gait differences between fallers and non-fallers were dependent on retrospective or prospective faller identification. |
| first_indexed | 2024-12-10T08:11:34Z |
| format | Article |
| id | doaj.art-d50967d85cb3464c9afff0b5cff2b1ed |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T08:11:34Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d50967d85cb3464c9afff0b5cff2b1ed2022-12-22T01:56:33ZengMDPI AGSensors1424-82202018-04-01184127510.3390/s18041275s18041275Dual-Task Elderly Gait of Prospective Fallers and Non-Fallers: A Wearable-Sensor Based AnalysisJennifer Howcroft0Edward D. Lemaire1Jonathan Kofman2William E. McIlroy3Department of Systems Design Engineering, University of Waterloo, Waterloo, ON N2L 3G1, CanadaCentre for Rehabilitation Research and Development, Ottawa Hospital Research Institute, Ottawa, ON K1H 8M2, CanadaDepartment of Systems Design Engineering, University of Waterloo, Waterloo, ON N2L 3G1, CanadaDepartment of Kinesiology, University of Waterloo, Waterloo, ON N2L 3G1, CanadaWearable sensors could facilitate point of care, clinically feasible assessments of dynamic stability and associated fall risk through an assessment of single-task (ST) and dual-task (DT) walking. This study investigated gait changes between ST and DT walking and between older adult prospective fallers and non-fallers. The results were compared to a study based on retrospective fall occurrence. Seventy-five individuals (75.2 ± 6.6 years; 47 non-fallers, 28 fallers; 6 month prospective fall occurrence) walked 7.62 m under ST and DT conditions while wearing pressure-sensing insoles and accelerometers at the head, pelvis, and on both shanks. DT-induced gait changes included changes in temporal measures, centre of pressure (CoP) path stance deviations and coefficient of variation, acceleration descriptive statistics, Fast Fourier Transform (FFT) first quartile, ratio of even to odd harmonics, and maximum Lyapunov exponent. Compared to non-fallers, prospective fallers had significantly lower DT anterior–posterior CoP path stance coefficient of variation, DT head anterior–posterior FFT first quartile, ST left shank medial–lateral FFT first quartile, and ST right shank superior maximum acceleration. DT-induced gait changes were consistent regardless of faller status or when the fall occurred (retrospective or prospective). Gait differences between fallers and non-fallers were dependent on retrospective or prospective faller identification.http://www.mdpi.com/1424-8220/18/4/1275wearable sensorsplantar pressureaccelerometerdynamic stabilitydual task gaitelderlyolder adults |
| spellingShingle | Jennifer Howcroft Edward D. Lemaire Jonathan Kofman William E. McIlroy Dual-Task Elderly Gait of Prospective Fallers and Non-Fallers: A Wearable-Sensor Based Analysis Sensors wearable sensors plantar pressure accelerometer dynamic stability dual task gait elderly older adults |
| title | Dual-Task Elderly Gait of Prospective Fallers and Non-Fallers: A Wearable-Sensor Based Analysis |
| title_full | Dual-Task Elderly Gait of Prospective Fallers and Non-Fallers: A Wearable-Sensor Based Analysis |
| title_fullStr | Dual-Task Elderly Gait of Prospective Fallers and Non-Fallers: A Wearable-Sensor Based Analysis |
| title_full_unstemmed | Dual-Task Elderly Gait of Prospective Fallers and Non-Fallers: A Wearable-Sensor Based Analysis |
| title_short | Dual-Task Elderly Gait of Prospective Fallers and Non-Fallers: A Wearable-Sensor Based Analysis |
| title_sort | dual task elderly gait of prospective fallers and non fallers a wearable sensor based analysis |
| topic | wearable sensors plantar pressure accelerometer dynamic stability dual task gait elderly older adults |
| url | http://www.mdpi.com/1424-8220/18/4/1275 |
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