NDLI: Effects of BMI and abdominal volume on the accuracy of step count obtained from a tri-axial accelerometer

Content Provider	IEEE Xplore Digital Library
Author	Cleland, I. Nugent, C.D. Finlay, D.D. Burns, W. Bougourd, J. Stevens, K. Armitage, R.
Copyright Year	2011
Description	Author affiliation: Smart Clothes and Wearable Technology Research Centre, University of Wales, Newport, Caerleon Campus, Lodge Road, Newport, NP18 3QT (Bougourd, J.; Stevens, K.) \|\| Adidas Wearable Sports Electronics, a trading division of Adidas (US), Suite 130, 4 Hillman Drive, Chadds Ford, PA, 19317, USA (Armitage, R.) \|\| Computer Science Research Institute and School of Computing and Mathematics University of Ulster, Newtownabbey, Co. Antrim, Northern Ireland BT37 0QB (Cleland, I.; Nugent, C.D.; Finlay, D.D.; Burns, W.)
Abstract	Accelerometers are widely accepted as practical wearable devices capable of measuring and assessing physical activity. These devices may, however, be subject to errors which could impact on their ability to acquire an accurate step count. A limited number of studies have examined the effects of body mass index (BMI) on the accuracy of accelerometers functioning as step counters. It has been suggested that BMI may not be the best indicator of adiposity. The aim of the present study was to assess the effects of BMI and abdominal volume on the accuracy of a step count obtained from a tri-axial accelerometer. Accelerometers were placed directly onto the skin at the chest, waist and lower back of 12 participants. Participants then walked on a motorized treadmill at 0.89m/s and 1.34m/s. Analysis of the results indicated that BMI and abdominal volume did not affect the accuracy of the step count obtained from accelerometers under any conditions. Walking speed, however, had a significant effect with step count accuracy decreasing at the slower speed.
Starting Page	3656
Ending Page	3659
File Size	887396
Page Count	4
File Format	PDF
ISBN	9781424441211
ISSN	1557170X
e-ISBN	9781457715891
e-ISBN	9781424441228
DOI	10.1109/IEMBS.2011.6090616
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Accuracy Accelerometers Legged locomotion Shape Biomedical monitoring Three dimensional displays Indexes
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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