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Titre : | Validation of a Body-Worn Accelerometer to Measure Activity Patterns in Octogenarians (2014) |
Auteurs : | Lynne M. Taylor ; Jochen Klenk ; Alistair J. Maney |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2014/5, 2014) |
Article en page(s) : | p. 930-934 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Evaluation gériatrique ; Exercice physique ; Rééducation et réadaptation |
Mots-clés: | Accelerometry ; Accélérométrie ; Geriatric assessment ; Exercise |
Résumé : |
Objective To determine the validity of a triaxial body-worn accelerometer for detection of gait and postures in people aged >80 years. Design Participants performed a range of activities (sitting, lying, walking, standing) in both a controlled and a home setting while wearing the accelerometer. Activities in the controlled setting were performed in a scripted sequence. Activities in the home setting were performed in an unscripted manner. Analyzed accelerometer data were compared against video observation as the reference measure. Setting Independent-living and long-term-care retirement village. Participants Older people (N=22; mean age + SD, 88.1+5y) residing in long-term-care and independent-living retirement facilities. Interventions Not applicable. Main Outcome Measures The level of agreement between video observation and the accelerometer for the total duration of each activity, and second-by-second correspondence between video observation and the accelerometer for each activity. Results The median absolute percentage errors between video observation and the accelerometer were Conclusions This single-device accelerometer provides a valid measure of lying and locomotion in people aged >80 years. There is an error of approximately 25% when discriminating sitting from standing postures, which needs to be taken into account when monitoring longer-term habitual activity in this age group. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/journal/archives-of-physical-medicine-and-rehabilitation |