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Fletta eftir efnisorði "Accelerometer"

Fletta eftir efnisorði "Accelerometer"

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    Comparison of summer and winter objectively measured physical activity and sedentary behavior in older adults: Age, gene/environment susceptibility Reykjavik study 
    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 ...
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    Longitudinal Change in Adolescent Bedtimes Measured by Self-Report and Actigraphy 
    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 ...