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Authors: M. Hernandez Silveira ; S.-S. Ang ; T. Mehta ; B. Wang and A. Burdett

Affiliation: Toumaz UK Ltd, United Kingdom

ISBN: 978-989-8425-91-1

Keyword(s): Activity energy expenditure, Accelerometer, Heart rate, Calibration.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Equipment ; Biomedical Instruments and Devices ; Biomedical Sensors ; Embedded Signal Processing ; Low-Power Design

Abstract: It is well known that sedentary life style lead to conditions such as obesity and diabetes. In recent years, there has been increasing interest in devices capable of measuring activity energy expenditure (AEE) and physical activity intensity (PAI) without disrupting the activities of daily living. In this paper we introduce a portable and light-weight device based on our SensiumTM technology. Unlike existing commercially available devices, the latter can measure both AEE and PAI in a real-time basis and convey the resultant calculations wirelessly to a remote PC and/or sever. Such calculations are carried out by means of a mathematical model, which combines heart rate and accelerometer information to produce PAI and AEE estimations. The model was calibrated against a reference indirect calorimetry system. In particular, simulated annealing was used to adjust the model parameters so as to allow a closer match between the predicted and reference values. The resulting model was tested us ing a separate dataset with reference to indirect calorimetry. The 95% prediction interval and the Spearman’s correlation coefficient (r) for PAI were found to be [-0.1307, 0.171] kJ/kg/min and 0.903 (p<0.001) respectively. In addition, the results revealed that there is agreement between SensiumTM and a similar reference (validated) device. (More)

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Paper citation in several formats:
Silveira, M.; Ang, S.; Mehta, T.; Wang, B. and Burdett, A. (2012). IMPLEMENTATION AND EVALUATION OF A PHYSICAL ACTIVITY AND ENERGY EXPENDITURE ALGORITHM IN A SENSIUM™-BASED BODY-WORN DEVICE.In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012) ISBN 978-989-8425-91-1, pages 219-223. DOI: 10.5220/0003786902190223

@conference{biodevices12,
author={M. Hernandez Silveira. and S.{-}S. Ang. and T. Mehta. and B. Wang. and A. Burdett.},
title={IMPLEMENTATION AND EVALUATION OF A PHYSICAL ACTIVITY AND ENERGY EXPENDITURE ALGORITHM IN A SENSIUM™-BASED BODY-WORN DEVICE},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012)},
year={2012},
pages={219-223},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003786902190223},
isbn={978-989-8425-91-1},
}

TY - CONF

JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012)
TI - IMPLEMENTATION AND EVALUATION OF A PHYSICAL ACTIVITY AND ENERGY EXPENDITURE ALGORITHM IN A SENSIUM™-BASED BODY-WORN DEVICE
SN - 978-989-8425-91-1
AU - Silveira, M.
AU - Ang, S.
AU - Mehta, T.
AU - Wang, B.
AU - Burdett, A.
PY - 2012
SP - 219
EP - 223
DO - 10.5220/0003786902190223

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