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Relative validity of 3 accelerometer models for estimating energy expenditure during light activity

Journal Article


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Abstract


  • Background: With physical inactivity inextricably linked to the increasing prevalence of obesity, there is a need for validated methods that measure free-living energy expenditure (EE) within sedentary environments. While accelerometers enable these measurements, few studies have compared device accuracy in such settings. The aim of this study was to investigate the relative validity of the Actigraph, RT3 and SenseWear Armband (SWA). Methods: Twenty-three (11 male, 12 female) participants (age: 25.3 ± 6.3 yr; BMI: 22.6 ± 2.7) wore 3 accelerometers at designated sites during a 4-hour stay in the Whole Room Calorimeter (WRC). Participants performed 2 10-minute bouts of light-intensity exercise (stepping and stationary cycling) and engaged in unstructured sedentary activities. EE estimated by accelerometers was compared with WRC EE derived from measurements of gaseous exchange. Results: The Actigraph and SWA both accurately estimated EE during the stepping exercise. EE estimated by the RT3 during stepping was significantly lower than the WRC value (31.2% ± 15.6%, P < .001). All accelerometers underestimated cycling and unstructured activity EE over the trial period (P < .001). Conclusions: The Actigraph and SWA are both valid tools for quantifying EE during light-intensity stepping. These results provide further valuable information on how accelerometer devices may be appropriately used.

Publication Date


  • 2014

Citation


  • Wetten, A. Allan., Batterham, M., Tan, S. & Tapsell, L. (2014). Relative validity of 3 accelerometer models for estimating energy expenditure during light activity. Journal of Physical Activity and Health, 11 (3), 638-647.

Scopus Eid


  • 2-s2.0-84898642369

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1789&context=sspapers

Ro Metadata Url


  • http://ro.uow.edu.au/sspapers/790

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 638

End Page


  • 647

Volume


  • 11

Issue


  • 3

Place Of Publication


  • United States

Abstract


  • Background: With physical inactivity inextricably linked to the increasing prevalence of obesity, there is a need for validated methods that measure free-living energy expenditure (EE) within sedentary environments. While accelerometers enable these measurements, few studies have compared device accuracy in such settings. The aim of this study was to investigate the relative validity of the Actigraph, RT3 and SenseWear Armband (SWA). Methods: Twenty-three (11 male, 12 female) participants (age: 25.3 ± 6.3 yr; BMI: 22.6 ± 2.7) wore 3 accelerometers at designated sites during a 4-hour stay in the Whole Room Calorimeter (WRC). Participants performed 2 10-minute bouts of light-intensity exercise (stepping and stationary cycling) and engaged in unstructured sedentary activities. EE estimated by accelerometers was compared with WRC EE derived from measurements of gaseous exchange. Results: The Actigraph and SWA both accurately estimated EE during the stepping exercise. EE estimated by the RT3 during stepping was significantly lower than the WRC value (31.2% ± 15.6%, P < .001). All accelerometers underestimated cycling and unstructured activity EE over the trial period (P < .001). Conclusions: The Actigraph and SWA are both valid tools for quantifying EE during light-intensity stepping. These results provide further valuable information on how accelerometer devices may be appropriately used.

Publication Date


  • 2014

Citation


  • Wetten, A. Allan., Batterham, M., Tan, S. & Tapsell, L. (2014). Relative validity of 3 accelerometer models for estimating energy expenditure during light activity. Journal of Physical Activity and Health, 11 (3), 638-647.

Scopus Eid


  • 2-s2.0-84898642369

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1789&context=sspapers

Ro Metadata Url


  • http://ro.uow.edu.au/sspapers/790

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 638

End Page


  • 647

Volume


  • 11

Issue


  • 3

Place Of Publication


  • United States