Validation of automatic wear-time detection algorithms in a free-living setting of wrist-worn and hip-worn ActiGraph GT3X

BMC Public Health
R KnaierArno Schmidt-Trucksäss

Abstract

Wrist-worn accelerometers are increasingly used in epidemiological studies to record physical activity. The accelerometer data are usually only analyzed if the convention for compliant wear time is met (i.e. ≥ 10 h per day) but the algorithms to detect wear time have been developed based on data from hip-worn devices only and have not been tested in a free-living setting. The aim of this study was to validate the automatic wear time detection algorithms of one of the most frequently used devices in a free-living setting. Sixty-eight adults wore one ActiGraph GT3X+ accelerometer on the wrist and one on the hip and additionally recorded wear times for each device separately in a diary. Monitoring phase was during three consecutive days in a free-living setting. Wear time was computed by the algorithms of Troiano and Choi and compared to the diary recordings. Mean wear time was over 1420 min per day for both devices on all days. Lin's concordance correlation coefficient for the wrist-worn wear time was 0.73 (0.60; 0.82) when comparing the diary with Troiano and 0.78 (0.67; 0.86) when comparing the diary with Choi. For hip-worn devices the respective values were 0.23 (0.13; 0.33) for Troiano and 0.92 (0.88; 0.95) for Choi. Mean and...Continue Reading

References

Apr 12, 2008·Journal of Physical Activity & Health·Calum MattocksChris Riddoch
Feb 9, 2010·Theriogenology·P F Watson, A Petrie
Jun 29, 2010·Medicine and Science in Sports and Exercise·Leena ChoiMaciej S Buchowski
Apr 25, 2012·Medicine and Science in Sports and Exercise·Leena ChoiMaciej S Buchowski
Apr 19, 2013·Medicine and Science in Sports and Exercise·Patty S Freedson, Dinesh John
Mar 19, 2015·Medicine and Science in Sports and Exercise·Katrien WijndaeleGenevieve N Healy
Oct 19, 2016·Medicine and Science in Sports and Exercise·Jacqueline KerrDavid Berrigan

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Citations

Jul 30, 2020·BMJ Open·Ana Paula Carvalho-E-SilvaPaulo H Ferreira
Jan 15, 2020·Scientific Reports·Manu AiraksinenSampsa Vanhatalo
Jul 16, 2020·Journal of Neuroengineering and Rehabilitation·Alix ChadwellPeter Worsley
Dec 10, 2020·International Journal of Environmental Research and Public Health·Viktoria KarleAlexander Tallner
May 1, 2021·International Journal of Environmental Research and Public Health·Wenxi LiuZan Gao

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Software Mentioned

ActiLife
SPSS
ActiGraph
R
Troiano

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