Validation of a multi-sensor armband during free-living activity in adults with cystic fibrosis
Related Experiment Video
Updated: May 4, 2026
Home-Based Monitor for Gait and Activity Analysis
Published on: August 8, 2019
Narelle S Cox1, Jennifer A Alison2, Brenda M Button3
1School of Physiotherapy, Faculty of Health Sciences, La Trobe University, Australia.
Background:
The SenseWear Armband (SWA) provides simple and non-invasive measures of energy expenditure (EE) during physical activity, however its accuracy in adults with cystic fibrosis (CF) during free living physical activities has not been established.
Methods:
26 CF adults (mean FEV1 63% predicted; 11 males) completed a series of standardised static and active tasks with simultaneous analysis of EE via the SWA and indirect calorimetry (IC).
Results:
Mean difference and limits of agreement between EE values from the SWA and IC across all activities were -0.02METs (95% CI -1.1 to 1.1). There was moderate agreement between the two measures (ICC 0.4; 95% CI: 0 to 0.7; p=0.03). For individual activity tasks ICC ranged from 0.1 to 0.6.
Conclusion:
Overall, the SWA demonstrated good agreement with IC for EE estimates in CF adults during a series of free-living activities, however accuracy was variable when assessing EE for specific activities of shorter duration.
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