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Is the SenseWear Armband accurate enough to quantify and estimate energy expenditure in healthy adults?
Annals of Translational Medicine 2017 March
BACKGROUND: The SenseWear Armband (SWA) is a monitor that can be used to estimate energy expenditure (EE); however, it has not been validated in healthy adults. The objective of this paper was to study the validity of the SWA for quantifying EE levels.
METHODS: Twenty-three healthy adults (age 40-55 years, mean: 48±3.42 years) performed different types of standardized physical activity (PA) for 10 minutes (rest, walking at 3 and 5 km·h(-1), running at 7 and 9 km·h(-1), and sitting/standing at a rate of 30 cycle·min(-1)). Participants wore the SWA on their right arm, and their EE was measured by indirect calorimetry (IC) the gold standard.
RESULTS: There were significant differences between the SWA and IC, except in the group that ran at 9 km·h(-1) (>9 METs). Bland-Altman analysis showed a BIAS of 1.56 METs (±1.83 METs) and limits of agreement (LOA) at 95% of -2.03 to 5.16 METs. There were indications of heteroscedasticity (R(2) =0.03; P<0.05). Analysis of the receiver operating characteristic (ROC) curves showed that the SWA seems to be not sensitive enough to estimate the level of EE at highest intensities.
CONCLUSIONS: The SWA is not as precise in estimating EE as IC, but it could be a useful tool to determine levels of EE at low intensities.
METHODS: Twenty-three healthy adults (age 40-55 years, mean: 48±3.42 years) performed different types of standardized physical activity (PA) for 10 minutes (rest, walking at 3 and 5 km·h(-1), running at 7 and 9 km·h(-1), and sitting/standing at a rate of 30 cycle·min(-1)). Participants wore the SWA on their right arm, and their EE was measured by indirect calorimetry (IC) the gold standard.
RESULTS: There were significant differences between the SWA and IC, except in the group that ran at 9 km·h(-1) (>9 METs). Bland-Altman analysis showed a BIAS of 1.56 METs (±1.83 METs) and limits of agreement (LOA) at 95% of -2.03 to 5.16 METs. There were indications of heteroscedasticity (R(2) =0.03; P<0.05). Analysis of the receiver operating characteristic (ROC) curves showed that the SWA seems to be not sensitive enough to estimate the level of EE at highest intensities.
CONCLUSIONS: The SWA is not as precise in estimating EE as IC, but it could be a useful tool to determine levels of EE at low intensities.
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