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Cited by 534

The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

The use of uniaxial accelerometry for the assessment of physical-activity-related energy expenditure: a validation study against whole-body indirect calorimetry

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Kumahara, Hideaki, Schutz, Yves, Ayabe, Makoto, Yoshioka, Mayumi, Yoshitake, Yutaka, Shindo, Munehiro, Ishii, Kojiro, Tanaka, Hiroaki·2004·British Journal of Nutrition
DOI 10.1079/bjn20031033
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Abstract

Assessing the total energy expenditure (TEE) and the levels of physical activity in free-living conditions with non-invasive techniques remains a challenge. The purpose of the present study was to investigate the accuracy of a new uniaxial accelerometer for assessing TEE and physical-activity-related energy expenditure (PAEE) over a 24 h period in a respiratory chamber, and to establish activity levels based on the accelerometry ranges corresponding to the operationally defined metabolic equivalent (MET) categories. In study 1, measurement of the 24 h energy expenditure of seventy-nine Japanese subjects (40 (SD 12) years old) was performed in a large respiratory chamber. During the measurements, the subjects wore a uniaxial accelerometer (Lifecorder; Suzuken Co. Ltd, Nagoya, Japan) on their belt. Two moderate walking exercises of 30 min each were performed on a horizontal treadmill. In study 2, ten male subjects walked at six different speeds and ran at three different speeds on a treadmill for 4 min, with the same accelerometer. O 2 consumption was measured during the last minute of each stage and was expressed in MET. The measured TEE was 8447 (SD 1337) kJ/d. The accelerometer significantly underestimated TEE and PAEE (91·9 (SD 5·4) and 92·7 (SD 17·8) % chamber value respectively); however, there was a significant correlation between the two values (r 0·928 and 0·564 respectively; P<0·001). There was a strong correlation between the activity levels and the measured MET while walking (r2 0·93; P<0·001). Although TEE and PAEE were systematically underestimated during the 24 h period, the accelerometer assessed energy expenditure well during both the exercise period and the non-structured activities. Individual calibration factors may help to improve the accuracy of TEE estimation, but the average calibration factor for the group is probably sufficient for epidemiological research. This method is also important for assessing the diurnal profile of physical activity.

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Metadata

Authors
Kumahara, H., Schutz, Y., Ayabe, M., Yoshioka, M., Yoshitake, Y., Shindo, M., Ishii, K., & Tanaka, H.
Venue
British Journal of Nutrition
Publisher
Cambridge University Press (CUP)
Published
2004-02
Volume
91
Issue
2
Pages
235-243
ISSN
  • 0007-1145 (ISSN-L)
  • 1475-2662
DOI
10.1079/bjn20031033
OpenAlex
W2145821003
Cited by
534
References
4
FWCI
8.55
Type
journal article
Language
en
Open access
bronze

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