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Validtiy and usability testing of the Fitbit pedometer in patients with COPD

Riany De Sousa Sena, Jean Bourbeau, Pei Zhi Li, Sara Ahmed
European Respiratory Journal 2015 46: PA2067; DOI: 10.1183/13993003.congress-2015.PA2067
Riany De Sousa Sena
1Physical and Occupational Therapy, McGill University, Montreal, QC Canada
2Respiratory Epidemiology and Clinical Research Unit (RECRU), McGill University, Montreal, QC Canada
3Physical and Occupational Therapy, University of Fortaleza, Fortaleza, Ceara Brazil
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Jean Bourbeau
2Respiratory Epidemiology and Clinical Research Unit (RECRU), McGill University, Montreal, QC Canada
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Pei Zhi Li
2Respiratory Epidemiology and Clinical Research Unit (RECRU), McGill University, Montreal, QC Canada
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Sara Ahmed
1Physical and Occupational Therapy, McGill University, Montreal, QC Canada
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Abstract

Long-term physical activity self-monitoring in COPD patients requires the use of valid and user-friendly devices. We examined the validity and long-term usability of the Fitbit One Pedometer in COPD patients. In study A, COPD patients (n=11;FEV1%Pred 34.5 ±12;age, 69.6 ±6.5, 55% male) simultaneously wore the Fitbit one and the Actigraph GT3X activity monitor for 7 days. Study B, COPD patients (n=7;age, 63 ±6, FEV1%Pred 45±11) completed a usability questionnaire and participanted in qualitative interviews. Bland-Altman plots showed good agreement between daily step counts from the Fitbit One and the Actigraph, and intraclass correlations of 0.9 (CI: 07-0.9). Overall there was high usage, acceptability and satisfaction with the pedometer in terms of comfort and appearance and 60% of patients reported willingness to use it for longer than 12 months. Usability issues registered include replacement due to loss (n=02) and underestimation of daily stairs. Qualitative interviews revealed that COPD patients feel more empowered using a self-monitoring tool, but they have expectations to understand the accuracy of other physical activity outcomes including daily stairs, minutes active and calories. These results suggest that the Fitbit One is a valid device to count steps in COPD patients and feasible for long-term usability, but other activity outcomes from this pedometer requires further testing.

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  • COPD - management
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Validtiy and usability testing of the Fitbit pedometer in patients with COPD
Riany De Sousa Sena, Jean Bourbeau, Pei Zhi Li, Sara Ahmed
European Respiratory Journal Sep 2015, 46 (suppl 59) PA2067; DOI: 10.1183/13993003.congress-2015.PA2067

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Validtiy and usability testing of the Fitbit pedometer in patients with COPD
Riany De Sousa Sena, Jean Bourbeau, Pei Zhi Li, Sara Ahmed
European Respiratory Journal Sep 2015, 46 (suppl 59) PA2067; DOI: 10.1183/13993003.congress-2015.PA2067
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