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Titre : | Validity of Physical Activity Measures in Individuals After Total Knee Arthroplasty (2015) |
Auteurs : | Gustavo J. Almeida ; David M. Wert ; Kelly S. Brower |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2015/3, 2015) |
Article en page(s) : | p. 524-531 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Activités de la vie quotidienne ; Arthroplastie ; Arthroplastie prothétique de genou ; Etudes de validation ; Métabolisme énergétique ; Rééducation et réadaptation |
Mots-clés: | Accelerometry ; Accélérométrie ; Activities of daily living ; Arthroplasty ; Replacement ; Knee ; Energy metabolism ; Reference standards ; Normes de référence ; Validation studies |
Résumé : |
Objective To determine the concurrent criterion-related validity of 2 activity monitors in comparison with the criterion method of indirect calorimetry in older adults after total knee arthroplasty (TKA). Design Validation study. Setting Subjects completed 9 increasingly demanding daily activities in a research laboratory; each activity was performed for 7 minutes, for a total of 80 minutes, while the activity monitors and criterion method were used concurrently. Participants Subjects (N=21, 67% women) had a mean age + SD of 68+7 years and a body mass index of 29+4. Interventions Not applicable. Main Outcome Measures Energy expenditure (in kcal/min) measured by accelerometer-based and multisensor-based monitors and by a criterion method. Validity was assessed by the paired t test, intraclass correlation coefficient (ICC), and Bland-Altman plots comparing the measurements from the activity monitors with those of the criterion method. Results Measurements from the accelerometer-based monitor were significantly lower than those of the criterion method across all walking and nonwalking activities. The underestimations ranged from 40% to 100%. The accelerometer-based monitor demonstrated small to moderate agreement compared with the criterion method (ICCs from 0 to .38). Measurements from the multisensor-based monitor were significantly lower than those of the criterion method during several nonwalking activities; yet, the differences were minor (2%19%). Measurements from the multisensor-based monitor during walking activities were not different compared with the criterion method. The multisensor-based monitor demonstrated moderate to excellent agreement with the criterion method (ICCs from .48 to .81). Conclusions The multisensor-based monitor showed better criterion-related validity than the accelerometer-based monitor and should be considered as a tool to measure physical activity in individuals after TKA. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999314012088 |