Crowley, P;
Skotte, J;
Stamatakis, E;
Hamer, M;
Aadahl, M;
Stevens, M;
Rangul, V;
... Holtermann, A; + view all
(2019)
Comparison of physical behavior estimates from three different thigh-worn accelerometer brands: a proof-of-concept for the Prospective Physical Activity, Sitting, and Sleep consortium (ProPASS).
International Journal of Behavioral Nutrition and Physical Activity
, 16
, Article 65. 10.1186/s12966-019-0835-0.
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Abstract
Background: Pooling data from thigh-worn accelerometers across multiple studies has great potential to advance evidence on the health benefits of physical activity. This requires harmonization of information on body postures, physical activity types, volumes and time patterns across different brands of devices. The aim of this study is to compare the physical behavior estimates provided by three different brands of thigh-worn accelerometers. Methods: Twenty participants volunteered for a 7-day free-living measurement. Three accelerometers - ActiGraph GT3X+, Axivity AX3 and ActivPAL Micro4 - were randomly placed in a vertical line on the midsection of the right thigh. Raw data from each accelerometer was processed and classified into 8 physical activities and postures using the Acti4 software. Absolute differences between estimates and the respective coefficient of variation (CV) were calculated. Results: We observed very minor differences between physical behavior estimates from three different accelerometer brands. When averaged over 24 h (1,440 min), the absolute difference (CV) between accelerometers were: 1.2 mins (0.001) for lying/sitting, 3.4 mins (0.02) for standing, 3.5 mins (0.06) for moving, 1.9 mins (0.03) for walking, 0.1 mins (0.19) for running, 1.2 mins (0.19) for stair climbing, 1.9 mins (0.07) for cycling. Moreover, there was an average absolute difference of 282 steps (0.03) per 24 h. Conclusions: Physical behaviors were classified with negligible difference between the accelerometer brands. These results support harmonization of data from different thigh-worn accelerometers across multiple cohorts when analyzed in an identical manner.
| Type: | Article |
|---|---|
| Title: | Comparison of physical behavior estimates from three different thigh-worn accelerometer brands: a proof-of-concept for the Prospective Physical Activity, Sitting, and Sleep consortium (ProPASS) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1186/s12966-019-0835-0 |
| Publisher version: | https://doi.org/10.1186/s12966-019-0835-0 |
| Language: | English |
| Additional information: | This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
| Keywords: | Harmonization, Data pooling, Objective measurement, Tri-axial, Accelerometry, Health, Validation, Posture |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10079832 |
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