Blar i Brage NIH på forfatter "Johansson, Jonas"
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Criterion validity of two physical activity and one sedentary time questionnaire against accelerometry in a large cohort of adults and older adults
Sagelv, Edvard Hamnvik; Hopstock, Laila Arnesdatter; Johansson, Jonas; Hansen, Bjørge Herman; Søren, Brage; Horsch, Alexander; Ekelund, Ulf; Morseth, Bente (Peer reviewed; Journal article, 2020)Objectives: We compared the ability of physical activity and sitting time questionnaires (PAQ) for ranking individuals versus continuous volume calculations (physical activity level (PAL), metabolic equivalents of task ... -
Physical activity levels in adults and elderly from triaxial and uniaxial accelerometry: The Tromsø Study
Sagelv, Edvard Hamnvik; Ekelund, Ulf; Pedersen, Sigurd; Brage, Søren; Hansen, Bjørge Herman; Johansson, Jonas; Grimsgaard, Sameline; Nordström, Anna; Horsch, Alexander; Hopstock, Laila Arnesdatter; Morseth, Bente (Peer reviewed; Journal article, 2019)Introduction: Surveillance of physical activity at the population level increases the knowledge on levels and trends of physical activity, which may support public health initiatives to promote physical activity. Physical ...