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Objective physical activity assessment in patients with chronic organ failure: a validation study of a new
Janneke Annegarn1, Martijn A Spruit, Nicole H M K Uszko-Lencer
1Department of Human Movement Science, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Centre, The Netherlands. Janneke.annegarn@maastrichtuniversity.nl
Objective:
To validate a new activity monitor (CAM) in patients with chronic organ failure during 1 hour of unconstrained activity assessment.
Design:
A validation study in which participants wore a CAM (placed on the thigh) for 1 hour while they were videotaped. Participants were instructed to continue their normal daily routine at the rehabilitation center.
Setting:
CIRO+, A Centre of Expertise for Chronic Organ Failure.
Participants:
Chronic organ failure patients (N=10) with a large range of functional exercise capacity.
Interventions:
Not applicable.
Main Outcome Measure:
Agreement in time spent on activities and postures according to video and CAM.
Results:
Cohen kappa coefficients for transient events resulted in an almost perfect agreement (0.85 ± 0.08) between the CAM and video.
Conclusions:
The CAM is a promising single-sensor unobtrusive tool for providing accurate data on the type and duration of daily activities in the home environment of patients with chronic organ failure.
