Identifying bedrest using 24-h waist or wrist accelerometry in adults.

by J Dustin Tracy, Sari Acra, Kong Y Chen, Maciej S Buchowski
Published 2018-01-01

Separating bedtime rest from activity using waist or wrist-worn accelerometers in youth.

by Dustin J Tracy, Zhiyi Xu, Leena Choi, Sari Acra, Kong Y Chen, Maciej S Buchowski
Published 2014-01-01

Less physical activity and more varied and disrupted sleep is associated with a less favorable metabolic profile in adolescents.

by Vaka Rognvaldsdottir, Robert J Brychta, Soffia M Hrafnkelsdottir, Kong Y Chen, Sigurbjorn A Arngrimsson, Erlingur Johannsson, Sigridur L Guðmundsdottir
Published 2020-01-01

Less screen time and more frequent vigorous physical activity is associated with lower risk of reporting negative mental health symptoms among Icelandic adolescents.

by Soffia M Hrafnkelsdottir, Robert J Brychta, Vaka Rognvaldsdottir, Sunna Gestsdottir, Kong Y Chen, Erlingur Johannsson, Sigridur L Guðmundsdottir, Sigurbjorn A Arngrimsson
Published 2018-01-01

Association between free-living sleep and memory and attention in healthy adolescents

by Runa Stefansdottir, Hilde Gundersen, Vaka Rognvaldsdottir, Alexander S. Lundervold, Sunna Gestsdottir, Sigridur L. Gudmundsdottir, Kong Y. Chen, Robert J. Brychta, Erlingur Johannsson
Published 2020-10-01

Association of sedentary time with mortality independent of moderate to vigorous physical activity.

by Annemarie Koster, Paolo Caserotti, Kushang V Patel, Charles E Matthews, David Berrigan, Dane R Van Domelen, Robert J Brychta, Kong Y Chen, Tamara B Harris
Published 2012-01-01

Estimation of daily energy expenditure in pregnant and non-pregnant women using a wrist-worn tri-axial accelerometer.

by Vincent T van Hees, Frida Renström, Antony Wright, Anna Gradmark, Michael Catt, Kong Y Chen, Marie Löf, Les Bluck, Jeremy Pomeroy, Nicholas J Wareham, Ulf Ekelund, Søren Brage, Paul W Franks
Published 2011-01-01

Comparison of Summer and Winter Objectively Measured Physical Activity and Sedentary Behavior in Older Adults: Age, Gene/Environment Susceptibility Reykjavik Study

by Nanna Yr Arnardottir, Nina Dora Oskarsdottir, Robert J. Brychta, Annemarie Koster, Dane R. van Domelen, Paolo Caserotti, Gudny Eiriksdottir, Johanna E. Sverrisdottir, Erlingur Johannsson, Lenore J. Launer, Vilmundur Gudnason, Tamara B. Harris, Kong Y. Chen, Thorarinn Sveinsson
Published 2017-10-01