Summer activity patterns among teenage girls: harmonic shape invariant modeling to estimate circadian cycles

Abstract

BACKGROUND Physical activity as measured by activity counts over short time intervals across a 24 h period are often used to assess circadian variation. We are interested in characterizing circadian patterns in activity among adolescents and examining how these patterns vary by obesity status. New statistical approaches are needed to examine how factors… (More)
DOI: 10.1186/1740-3391-10-2

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