Comparing Monitoring Results of Two Motion Trackers for Geriatric Patients.

BACKGROUND Fitbit and Garmin motion tracker devices are highly used in research. The validity and reliability of these devices is proven for healthy adults between 18 and 64. OBJECTIVES Comparing data output of two devices. METHODS Observational case study on a test track and in the domestic environment of a 80- year-old female multimorbide geriatric patient. RESULTS High significant correlation of the devices on the test track [r=.776, p≤.001, Bca-CI-95% (.618;.874), N=33], but significant different in the domestic environment over time (z=4.840, p≤.001). CONCLUSION The dominant/non-dominant body side and further sources of error may play a role in monitoring steps with these devices.