Institut Régional de Formation aux Métiers de Rééducation et de Réadaptation des Pays de la Loire.
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Auteur Simon N. Van Laarhoven
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Validation of a novel activity monitor in impaired, slow-walking, crutch-supported patients / Simon N. Van Laarhoven in Annals of physical and rehabilitation medicine, Vol. 59 n° 6 (December 2016)
[article] Validation of a novel activity monitor in impaired, slow-walking, crutch-supported patients [texte imprimé] / Simon N. Van Laarhoven, Auteur ; Matthijs Lipperts, Auteur ; Stijn A.A.N. Bolink, Auteur . - 2016 . - p. 308-313.
Langues : Anglais (eng) Français (fre)
in Annals of physical and rehabilitation medicine > Vol. 59 n° 6 (December 2016) . - p. 308-313
Catégories : PHYSIOLOGIE
Tags : Outcome assessment Activity monitor Physical activity Arthroplasty Rehabilitation Résumé : Background: A growing need in clinical practice of rehabilitation and orthopaedic medicine is for objective outcome tools to estimate physical activity. Current techniques show limited validity or are too demanding for routine clinical use. Accelerometer-based activity monitors (AMs) have shown promise for measuring physical activity in healthy people but lack validity in impaired patients.
Objectives: This study aimed to validate an accelerometer-based AM in impaired, slow-walking, crutch-supported patients after total joint arthroplasty (TJA).
Methods: Shortly after TJA, patients who were safely mobilized with 2 crutches and 8 healthy participants completed a trial of different activities while wearing the AM on the lateral upper leg and being videotaped. Outcome variables (e.g., time walking, number of gait cycles, sit-stand-sit transfers) were compared to video recordings, and sensitivity, predictive value and mean percentage difference (MPD) values were calculated.
Results: We included 40 patients (mean age: 65±9 years; mean BMI: 30±6kg/m2; male:female ratio: 18:22) and 8 healthy participants (mean age: 49±20 years; mean BMI: 23±0.7kg/m2; male:female ratio: 5:3). The AM showed excellent sensitivity (>95%) and predictive value (>95%) in identifying activities (e.g., walking, sitting, resting) and detecting the number of gait cycles and sit-stand-sit transfers (mean percentage difference: ±2%). Detection of number of steps ascending and descending stairs and cadence was more difficult but still showed good results (mean percentage difference: ±7%).
Conclusions: This is the first validation study to assess physical activity with an AM in impaired, slow-walking, crutch-supported patients. The AM was a valid tool for measuring physical activity in these patients. The tool may help in evaluating and optimizing rehabilitation programs for patients after TJA, those recovering from stroke or chronic impaired patients.
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