Concurrent validity of Nokia®Go activity tracker in walking and freeliving conditions
(2019) Journal of Evaluation in Clinical Practice (Print) — (2019)
Files
LebleuProfFev2019NokiaGo.pdf
Restricted Access - Adobe PDF
- 576.71 KB
Details
- Authors
- Abstract
- Rationale, aims, and objectives Consumer-based activity trackers aim at quantifying physical activity in a wide range of contexts. Nevertheless, they need to be validated before they are confidently used. This study assessed the concurrent validity of the Nokia®Go against reference devices, according to different sensor locations, in two measurement conditions: during a walking task and during a 24-hour free-living condition. Methods We examined the agreement between devices and between locations in the number of steps and total sleep time by using intra-class correlation coefficient and Bland-Altman method. Results In the walking task, the agreement is good to excellent for steps between the Nokia®Go and the reference device. In the free-living condition, there is a systematic underestimation of steps in comparison to the ActiGraph. Excellent agreement was found between locations. The device worn at the hip indicated the lowest number of steps and the device located at the dominant wrist, indicated the greatest number of steps. Conclusions There are high discrepancies in step count between devices due to the different type of activities in daily life. The Nokia®Go may be confidently used for step counting during pure walking tasks, at different locations. However, the lack of concurrent validity with ActiGraph call for caution regarding their use in daily living conditions.
- Affiliations
Citations
Lebleu, J., Detrembleur, C., Guebels, c., Hamblenne, P., & Valet, M. (2019). Concurrent validity of Nokia®Go activity tracker in walking and freeliving conditions. Journal of Evaluation in Clinical Practice (Print). Published. https://doi.org/10.1111/jep.13125 (Original work published 2019)