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Stroke. 2012 Jun;43(6):1660-2. doi: 10.1161/STROKEAHA.111.646257. Epub 2012 Apr 12.

Measuring energy expenditure after stroke: validation of a portable device.

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1
Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.

Abstract

BACKGROUND AND PURPOSE:

Current means of assessing physical activity and energy expenditure have restrictions in stroke, limiting our understanding of its role in therapeutic management. This study validates a portable multisensor array for measuring free-living total energy expenditure compared with a gold standard method (doubly labeled water) in individuals with stroke.

METHODS:

Daily energy expenditure was measured in 9 participants with stroke (73 ± 8 years) over a 10-day period with 2 techniques: a portable multisensor array and doubly labeled water.

RESULTS:

Bland-Altman analysis revealed a mean difference of 94 kcal/day (3.8%) in total energy expenditure measures given by the multisensor array in comparison to doubly labeled water with lower and upper limits of agreement of -276 to 463.8 kcal/day (2473 ± 468 versus 2380 ± 551, P=0.167). There was strong agreement between the multisensor array and labeled water methods of capturing total daily energy expenditure (r=0.850, P=0.004).

CONCLUSIONS:

The multisensor array is a portable and accurate method of capturing daily energy expenditure and may assist in understanding how stroke influences free-living energy expenditure and aid in clinical management.

PMID:
22499575
DOI:
10.1161/STROKEAHA.111.646257
[Indexed for MEDLINE]
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