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Browsing by Subject "Accelerometer"

Browsing by Subject "Accelerometer"

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  • Arnardóttir, Nanna Ýr; Óskarsdóttir, Nína Dóra; Brychta, Robert J.; Koster, Annemarie; van Domelen, Dane R.; Caserotti, Paolo; Eiriksdottir, Gudny; Sverrisdóttir, Jóhanna E.; Jóhannsson, Erlingur; Launer, Lenore J.; Gudnason, Vilmundur; Harris, Tamara B.; Chen, Kong Y.; Sveinsson, Thorarinn (MDPI AG, 2017-10-21)
    In Iceland, there is a large variation in daylight between summer and winter. The aim of the study was to identify how this large variation influences physical activity (PA) and sedentary behavior (SB). Free living PA was measured by a waist-worn ...
  • Brychta, Robert J.; Arnardottir, Nanna Yr; Johannsson, Erlingur; Wright, Elizabeth C.; Eiriksdottir, Gudny; Gudnason, Vilmundur; Marinac, Catherine R.; Davis, Megan; Koster, Annemarie; Caserotti, Paolo; Sveinsson, Thorarinn; Harris, Tamara; Chen, Kong Y. (2016-02-15)
    Study Objectives: To identify cross-sectional and seasonal patterns of sleep and physical activity (PA) in community-dwelling, older Icelandic adults using accelerometers. Methods: A seven-day free-living protocol of 244 (110 female) adults aged 79.7 ...
  • Brychta, Robert J.; Rögnvaldsdóttir, Vaka; Gudmundsdottir, Sigridur Lara; Stefansdottir, Runa; Hrafnkelsdóttir, Soffía Margrét; Gestsdottir, Sunna; Arngrímsson, Sigurbjörn Árni; Chen, Kong Y.; Jóhannsson, Erlingur (Human Kinetics, 2019-12-01)
    Introduction: Sleep is often quantified using self-report or actigraphy. Self-report is practical and less technically challenging, but prone to bias. We sought to determine whether these methods have comparable sensitivity to measure longitudinal ...