Psychometric properties of the MOBITEC-GP mobile application for real-life mobility assessment in older adults

Giannouli, Eleftheria; Kim, Eun-Kyeong; Fu, Cheng; Weibel, Robert; Sofios, Alexandros; Infanger, Denis; Portegijs, Erja; Rantanen, Taina; Huang, Haosheng; Schmidt-Trucksäss, Arno; Zeller, Andreas; Rössler, Roland; Hinrichs, Timo

doi:10.1016/j.gerinurse.2022.10.017

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Giannouli, E., Kim, E.-K., Fu, C., Weibel, R., Sofios, A., Infanger, D., Portegijs, E., Rantanen, T., Huang, H., Schmidt-Trucksäss, A., Zeller, A., Rössler, R., & Hinrichs, T. (2022). Psychometric properties of the MOBITEC-GP mobile application for real-life mobility assessment in older adults. Geriatric Nursing, 48, 273–279. https://doi.org/10.1016/j.gerinurse.2022.10.017

Abstract

Aim of this study was to test the reliability and validity of the life-space measures and walking speed delivered by the MOBITEC-GP app. Participants underwent several supervised walking speed assessments as well as a 1-week life-space assessment during two assessment sessions 9 days apart. Fifty-seven older adults (47.4% male, mean age= 75.3 (±5.9) years) were included in the study. The MOBITEC-GP app showed moderate to excellent test-retest reliability (ICCs between 0.584 and 0.920) and validity (ICCs between 0.468 and 0.950) of wal