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Accelerometry combined with heart rate telemetry in the assessment of total energy expenditure

Published online by Cambridge University Press:  08 March 2007

H. Patrik Johansson*
Stockholm University College of Physical Education and SportsThe Åstrand Laboratory of Work PhysiologySweden Karolinska InstitutetDepartment of Physiology and Pharmacology, Stockholm, Sweden
Lena Rossander-Hulthén
Sahlgrenska Academy at Göteborg UniversityDepartment of Clinical Nutrition, GöteborgSweden
Frode Slinde
Sahlgrenska Academy at Göteborg UniversityDepartment of Clinical Nutrition, GöteborgSweden
Björn Ekblom
Stockholm University College of Physical Education and SportsThe Åstrand Laboratory of Work PhysiologySweden Karolinska InstitutetDepartment of Physiology and Pharmacology, Stockholm, Sweden
*Corresponding author: fax+46 8 660 75 11,
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The aim of the present study was: (1) to develop a new method for total energy expenditure (TEE) assessment, using accelerometry (ACC) and heart rate (HR) telemetry in combination; (2) to validate the new method against the criterion measure (DLW) and to compare with two of the most common methods, FLEX-HR and ACC alone. In the first part of the study VO2, HR and ACC counts were measured in twenty-seven subjects during walking and running on a treadmill. Considering the advantages and disadvantages of the HR and ACC methods an analysis model was developed, using ACC at intensities of low and medium levels and HR at higher intensities. During periods of inactivity, RMR is used. A formula for determining TEE from ACC, HR and RMR was developed: TEE =1·1×(EQHR×TTHR+EQACC1×TTACC1+EQACC2×TTACC2+RMR×TTRMR). In the validation part of the study a sub-sample of eight subjects wore an accelerometer, HR was logged and TEE was measured for 14d with the DLW method. Analysis of the Bland–Altman plots with 95% CI indicates that there are no significant differences in TEE estimated with HR–ACC and ACC alone compared with TEE measured with DLW. It is concluded that the HR–ACC combination as well as ACC alone has potential as a method for assessment of TEE during free-living activities as compared with DLW

Research Article
Copyright © The Nutrition Society 2006


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