Device-based physical activity measures for population surveillance-issues of selection bias and reactivity

• Main Authors: Lars Breum Christiansen (Author), Sofie Koch (Author), Adrian Bauman (Author), Mette Toftager (Author), Christina Bjørk Petersen (Author), Jasper Schipperijn (Author)
• Format: Book
• Published: Frontiers Media S.A., 2023-08-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

BackgroundDevice-based measurement in physical activity surveillance is increasing, but research design choices could increase the risk of self-selection bias and reactive behaviour. The aim of this study is to compare the self-reported physical activity profiles of four different samples: participa...