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Table 3 Laboratory assessment of supervised series of 4 physical activity tasks using electronic devices

From: New strategies of physical activity assessment in cystic fibrosis: a pilot study

Variable Reference Device 1 (n = 6) Device 2 (n = 6) Device 3 (n = 6) Device 4 (n = 6)
Static task of supine lying
 Duration of physical activity, min 0.0 0.0 0.0 0.17 ± 0.41 0.17 ± 0.41
 Steps, number 0 7.83 ± 9.85 10.17 ± 9.11 6.33 ± 6.15 1.33 ± 3.27
Active tasks of stair-climbing
 Steps, number 24 19.83 ± 13.42 28.50 ± 8.85 23.33 ± 3.20 22.50 ± 1.87
Active tasks of stationary cycling
 Duration of physical activity, min 6.0 6.0 ± 0.0 3.75 ± 2.93 6.16 ± 3.18 5.88 ± 0.41
Active tasks of walking
 Duration of physical activity, min 6.0 6.0 ± 0.0 7.75 ± 3.5 6.33 ± 1.03 6.33 ± 0.52
  1. Data are presented as mean ± SD, unless otherwise stated. *p <  0.05, differences between measured data with electronic devices and reference data. Reference data of supervised series of 4 physical activity tasks were established a priori. Abbreviations: Device 1 Smartwatch, Device 2 Fitbit, Device 3 Smartphone (Android), Device 4 Smartphone (iOS)